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dpdk-stdlib-quic: Stats, gateway-MAC acquisition, and LoopbackBackend - #71

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gspivey merged 2 commits into
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agent/quic-stats-gateway-loopback
Jun 6, 2026
Merged

dpdk-stdlib-quic: Stats, gateway-MAC acquisition, and LoopbackBackend#71
gspivey merged 2 commits into
developmentfrom
agent/quic-stats-gateway-loopback

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@gspivey

@gspivey gspivey commented Jun 6, 2026

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Roadmap Item

Addresses roadmap item #7: dpdk-stdlib-quic: Stats, gateway-MAC acquisition, and LoopbackBackend

Spec: .kiro/specs/s2n-quic-provider/ · tasks 8.1, 8.2, 8.3, 8.4

Summary

All four spec tasks were already implemented as part of prior PRs (#66 skeleton). This PR formally marks them complete in the task spec:

  • 8.1 ProviderStats atomic counters (rx_burst_calls, tx_burst_calls, datagrams_received, datagrams_transmitted, rx_drops, tx_drops, timer_wakeups) + StatsSnapshot::snapshot() + ProviderHandle with Arc<AtomicBool> shutdown, JoinHandle, shutdown()
  • 8.2 ProviderBuilder::with_gateway_mac([u8; 6]) for explicit gateway MAC configuration, with Option<[u8; 6]> stored in config for kernel ARP cache fallback at start() time
  • 8.3 LoopbackBackend implementing all 9 PacketBackend methods (send_frame, recv_frames, mac_address, backend_name, set_promiscuous, is_promiscuous, set_allmulticast, is_allmulticast, rx_readiness)
  • 8.4 8 unit tests covering all LoopbackBackend methods (roundtrip, empty recv, mac, name, promiscuous, allmulticast, multiple frames ordering, rx_readiness)

Tests

All 748 workspace tests pass (0 failures). The 40 dpdk-stdlib-quic tests include:

  • 8 LoopbackBackend integration tests (tests/loopback_backend.rs)
  • 3 provider initialization tests (tests/provider_init.rs)
  • 29 unit tests across modules (clock, ecn, error, frame, path_handle, rx, tx)

Tradeoffs

None — this is a documentation-only change marking already-implemented work as complete.

Agent Router
docs(quic): mark tasks 8.1-8.4 complete in spec
c6100c7 
ProviderStats, ProviderHandle, ProviderBuilder::with_gateway_mac,
LoopbackBackend, and all unit tests were implemented in prior PRs
(#66 skeleton). This marks them formally complete in the task spec.
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Synthetic Performance Results — Graviton (run)

Commit: 78ce8de8

✅ synthetic UDP socket bound to 10.0.0.1:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to 10.0.0.1:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to [2001:db8::1]:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to [2001:db8::1]:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to 10.0.0.1:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to 10.0.0.1:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to [2001:db8::1]:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to [2001:db8::1]:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to 10.0.0.1:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to 10.0.0.1:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to [2001:db8::1]:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to [2001:db8::1]:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to 10.0.0.1:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to 10.0.0.1:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to [2001:db8::1]:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to [2001:db8::1]:9000 (MAC: 02:00:00:00:00:01)

Synthetic UDP Performance Results

Measures framework overhead: sync dpdk_udp::UdpSocket vs async (std::sync::Mutex + try_recv_from).

IPv4 Baseline

Test Payload Sync PPS Async PPS Ratio (sync/async) Async ns/op
TX send_to 64B 11.4M 11.0M 1.0x 91
RX recv_from 64B 3.4M 4.6M 0.7x 216
TX send_to 1400B 1.6M 1.6M 1.0x 614
RX recv_from 1400B 1.0M 1.1M 0.9x 939

IPv6

Test Payload Sync PPS Async PPS Ratio (sync/async) Async ns/op
TX send_to (IPv6) 64B 8.6M 8.5M 1.0x 118
RX recv_from (IPv6) 64B 3.9M 5.5M 0.7x 182
TX send_to (IPv6) 1400B 2.7M 2.7M 1.0x 377
RX recv_from (IPv6) 1400B 1.0M 1.1M 0.9x 912

IPv6 vs IPv4 Comparison (sync path)

Test Payload IPv4 PPS IPv6 PPS IPv4/IPv6 Ratio
TX send_to (sync) 64B 11.4M 8.6M 1.32x
RX recv_from (sync) 64B 3.4M 3.9M 0.87x
TX send_to (sync) 1400B 1.6M 2.7M 0.62x
RX recv_from (sync) 1400B 1.0M 1.0M 0.99x

IPv4 avg sync/async ratio: 0.9x, worst: 1.0x | IPv6 vs IPv4 worst ratio: 1.32x (OK)

OK: IPv6 is 31.9% slower than IPv4 — within acceptable threshold (<50%). Expected due to larger headers (40B vs 20B) and mandatory UDP checksum.

Good: Async wrapper is within 1.0x of sync — minimal framework overhead.

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Synthetic Performance Results (run)

Commit: 78ce8de8

✅ synthetic UDP socket bound to 10.0.0.1:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to 10.0.0.1:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to [2001:db8::1]:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to [2001:db8::1]:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to 10.0.0.1:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to 10.0.0.1:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to [2001:db8::1]:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to [2001:db8::1]:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to 10.0.0.1:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to 10.0.0.1:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to [2001:db8::1]:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to [2001:db8::1]:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to 10.0.0.1:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to 10.0.0.1:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to [2001:db8::1]:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to [2001:db8::1]:9000 (MAC: 02:00:00:00:00:01)

Synthetic UDP Performance Results

Measures framework overhead: sync dpdk_udp::UdpSocket vs async (std::sync::Mutex + try_recv_from).

IPv4 Baseline

Test Payload Sync PPS Async PPS Ratio (sync/async) Async ns/op
TX send_to 64B 11.4M 10.9M 1.0x 91
RX recv_from 64B 3.5M 4.4M 0.8x 225
TX send_to 1400B 1.6M 1.6M 1.0x 613
RX recv_from 1400B 987.0K 1.1M 0.9x 925

IPv6

Test Payload Sync PPS Async PPS Ratio (sync/async) Async ns/op
TX send_to (IPv6) 64B 8.7M 8.4M 1.0x 118
RX recv_from (IPv6) 64B 4.0M 5.5M 0.7x 182
TX send_to (IPv6) 1400B 2.7M 2.6M 1.0x 378
RX recv_from (IPv6) 1400B 1.0M 1.1M 0.9x 885

IPv6 vs IPv4 Comparison (sync path)

Test Payload IPv4 PPS IPv6 PPS IPv4/IPv6 Ratio
TX send_to (sync) 64B 11.4M 8.7M 1.32x
RX recv_from (sync) 64B 3.5M 4.0M 0.88x
TX send_to (sync) 1400B 1.6M 2.7M 0.62x
RX recv_from (sync) 1400B 987.0K 1.0M 0.95x

IPv4 avg sync/async ratio: 0.9x, worst: 1.0x | IPv6 vs IPv4 worst ratio: 1.32x (OK)

OK: IPv6 is 31.6% slower than IPv4 — within acceptable threshold (<50%). Expected due to larger headers (40B vs 20B) and mandatory UDP checksum.

Good: Async wrapper is within 1.0x of sync — minimal framework overhead.

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[CI] Stage: Deploy

Infrastructure ready.

  • Sender: i-06ef113a74cb47d34 (DPDK ENI: 10.0.1.249)
  • Receiver: i-0220eea9e6fce4219 (DPDK ENI: 10.0.1.51)
  • Both instances SSM-ready.

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[CI] Stage: Deploy

Infrastructure ready.

  • Sender: i-0ea4ec8863d843497 (DPDK ENI: 10.0.1.162)
  • Receiver: i-09a658d0a61b106c0 (DPDK ENI: 10.0.1.183)
  • Both instances SSM-ready.

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[CI] Stage: Summary

All tests PASSED.

ARP seeding: kernel /proc/net/arp (automatic)

  • tier1-dpdk-echo: 6 tests, 0 failures
  • tier2-kernel-interop: 4 tests, 0 failures
  • tier3-iperf-interop: 1 tests, 0 failures
  • tier3-iperf-interop: 1 tests, 0 failures

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[CI] Stage: Summary

All tests PASSED.

ARP seeding: kernel /proc/net/arp (automatic)

  • tier1-dpdk-echo: 6 tests, 0 failures
  • tier2-kernel-interop: 4 tests, 0 failures
  • tier3-iperf-interop: 1 tests, 0 failures
  • tier3-iperf-interop: 1 tests, 0 failures

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✅ Integration Tests Passed (Run 27063078746)

Branch: 71/merge | Commit: 78ce8de8

Test Results

  • tier1-dpdk-echo.xml: 6 tests, 0 failures, skipped
  • tier2-kernel-interop.xml: 4 tests, 0 failures, skipped
  • tier3-iperf-sends.xml: 1 tests, 0 failures, skipped
  • tier3-our-app-sends.xml: 1 tests, 0 failures, skipped

Application Logs (last 20 lines)

receiver-echo-server.log

EAL: Detected CPU lcores: 2
EAL: Detected NUMA nodes: 1
EAL: Detected shared linkage of DPDK
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: VFIO support initialized
EAL: Using IOMMU type 8 (No-IOMMU)
EAL: Probe PCI driver: net_ena (1d0f:ec20) device: 0000:00:06.0 (socket -1)
TELEMETRY: No legacy callbacks, legacy socket not created
Warning: Some RX offloads not supported by device (flags: 0x1)
Warning: Some TX offloads not supported by device (flags: 0x1)
✅ DPDK UDP socket bound to 10.0.1.183:9000 (MAC: 02:bc:ee:9b:0c:ff)
echo listening on 10.0.1.183:9000 (MTU=9001, max_udp_payload=8973)
Shutting down gracefully...

sender-echo-server.log

EAL: Detected CPU lcores: 2
EAL: Detected NUMA nodes: 1
EAL: Detected shared linkage of DPDK
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: VFIO support initialized
EAL: Using IOMMU type 8 (No-IOMMU)
EAL: Probe PCI driver: net_ena (1d0f:ec20) device: 0000:00:06.0 (socket -1)
TELEMETRY: No legacy callbacks, legacy socket not created
Warning: Some RX offloads not supported by device (flags: 0x1)
Warning: Some TX offloads not supported by device (flags: 0x1)
✅ DPDK UDP socket bound to 10.0.1.162:9000 (MAC: 02:b8:da:dc:dd:8f)
echo listening on 10.0.1.162:9000 (MTU=9001, max_udp_payload=8973)
Shutting down gracefully...

sender-test-client.log

EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: VFIO support initialized
TELEMETRY: No legacy callbacks, legacy socket not created
DPDK bind failed (Port init failed: Invalid port ID: 0), falling back to tokio
Backend: tokio
Sending packets...
Sent 12 bytes: 'arp-probe #1'
Received 12 bytes from 10.0.1.183:9000: 'arp-probe #1'
Test complete
[2026-06-06T13:19:47Z] INFO: ARP resolution succeeded (got response from peer)
[2026-06-06T13:19:47Z] INFO: Test: udp_send_receive
[2026-06-06T13:19:48Z] INFO: UDP send/receive succeeded
[2026-06-06T13:19:48Z] INFO: Test: echo_roundtrip
[2026-06-06T13:19:49Z] INFO: Echo roundtrip succeeded: 5/5 responses received
[2026-06-06T13:19:49Z] INFO: Test: payload_integrity
[2026-06-06T13:19:49Z] INFO: Response received, checking payload match...
[2026-06-06T13:19:49Z] INFO: Payload integrity verified (found in response)
[2026-06-06T13:19:49Z] INFO: JUnit XML written to: /tmp/test-results/tier2-kernel-interop.xml
[2026-06-06T13:19:49Z] INFO: Tier 2 sender tests complete. Results: /tmp/test-results/tier2-kernel-interop.xml

receiver-test-client-iperf.log

[2026-06-06T13:24:57Z] INFO: iperf-sends: sent 10 packets, received 10 responses
[2026-06-06T13:24:57Z] INFO: iperf-sends: PASS (sent >= 5 packets)
[2026-06-06T13:24:57Z] INFO: JUnit XML written to: /tmp/test-results/tier3-iperf-sends.xml
[2026-06-06T13:24:57Z] INFO: iperf-sends test complete

sender-test-client-iperf.log

Received 30 bytes from 10.0.1.183:9000: 'dpdk-to-kernel-test-payload #3'
Sent 30 bytes: 'dpdk-to-kernel-test-payload #4'
Received 30 bytes from 10.0.1.183:9000: 'dpdk-to-kernel-test-payload #4'
Sent 30 bytes: 'dpdk-to-kernel-test-payload #5'
Received 30 bytes from 10.0.1.183:9000: 'dpdk-to-kernel-test-payload #5'
Sent 30 bytes: 'dpdk-to-kernel-test-payload #6'
Received 30 bytes from 10.0.1.183:9000: 'dpdk-to-kernel-test-payload #6'
Sent 30 bytes: 'dpdk-to-kernel-test-payload #7'
Received 30 bytes from 10.0.1.183:9000: 'dpdk-to-kernel-test-payload #7'
Sent 30 bytes: 'dpdk-to-kernel-test-payload #8'
Received 30 bytes from 10.0.1.183:9000: 'dpdk-to-kernel-test-payload #8'
Sent 30 bytes: 'dpdk-to-kernel-test-payload #9'
Received 30 bytes from 10.0.1.183:9000: 'dpdk-to-kernel-test-payload #9'
Sent 31 bytes: 'dpdk-to-kernel-test-payload #10'
Received 31 bytes from 10.0.1.183:9000: 'dpdk-to-kernel-test-payload #10'
Test complete
[2026-06-06T13:23:58Z] INFO: our-app-sends: sent 10 packets, received 10 responses
[2026-06-06T13:23:58Z] INFO: our-app-sends: PASS (sent >= 5 packets)
[2026-06-06T13:23:58Z] INFO: JUnit XML written to: /tmp/test-results/tier3-our-app-sends.xml
[2026-06-06T13:23:58Z] INFO: our-app-sends test complete
Full Application Logs (last 200 lines each)

receiver-echo-server.log

EAL: Detected CPU lcores: 2
EAL: Detected NUMA nodes: 1
EAL: Detected shared linkage of DPDK
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: VFIO support initialized
EAL: Using IOMMU type 8 (No-IOMMU)
EAL: Probe PCI driver: net_ena (1d0f:ec20) device: 0000:00:06.0 (socket -1)
TELEMETRY: No legacy callbacks, legacy socket not created
Warning: Some RX offloads not supported by device (flags: 0x1)
Warning: Some TX offloads not supported by device (flags: 0x1)
✅ DPDK UDP socket bound to 10.0.1.183:9000 (MAC: 02:bc:ee:9b:0c:ff)
echo listening on 10.0.1.183:9000 (MTU=9001, max_udp_payload=8973)
Shutting down gracefully...

sender-echo-server.log

EAL: Detected CPU lcores: 2
EAL: Detected NUMA nodes: 1
EAL: Detected shared linkage of DPDK
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: VFIO support initialized
EAL: Using IOMMU type 8 (No-IOMMU)
EAL: Probe PCI driver: net_ena (1d0f:ec20) device: 0000:00:06.0 (socket -1)
TELEMETRY: No legacy callbacks, legacy socket not created
Warning: Some RX offloads not supported by device (flags: 0x1)
Warning: Some TX offloads not supported by device (flags: 0x1)
✅ DPDK UDP socket bound to 10.0.1.162:9000 (MAC: 02:b8:da:dc:dd:8f)
echo listening on 10.0.1.162:9000 (MTU=9001, max_udp_payload=8973)
Shutting down gracefully...

sender-test-client.log

[2026-06-06T13:15:56Z] INFO: Test: arp_resolution
UDP Test Client
Target: 10.0.1.183:9000
Bind address: 10.0.1.162:0
Message: 'arp-probe'
Count: 1
EAL: Detected CPU lcores: 2
EAL: Detected NUMA nodes: 1
EAL: Detected shared linkage of DPDK
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: VFIO support initialized
EAL: Using IOMMU type 8 (No-IOMMU)
EAL: Probe PCI driver: net_ena (1d0f:ec20) device: 0000:00:06.0 (socket -1)
TELEMETRY: No legacy callbacks, legacy socket not created
Warning: Some RX offloads not supported by device (flags: 0x1)
Warning: Some TX offloads not supported by device (flags: 0x1)
✅ DPDK UDP socket bound to 10.0.1.162:32768 (MAC: 02:b8:da:dc:dd:8f)
Backend: dpdk
Sending packets...
Sent 12 bytes: 'arp-probe #1'
Received 12 bytes from 10.0.1.183:9000: 'arp-probe #1'
Test complete
[2026-06-06T13:15:57Z] INFO: ARP resolution succeeded (got response from peer)
[2026-06-06T13:15:57Z] INFO: Test: udp_send_receive
[2026-06-06T13:15:59Z] INFO: UDP send/receive succeeded
[2026-06-06T13:15:59Z] INFO: Test: echo_roundtrip
[2026-06-06T13:16:00Z] INFO: Echo roundtrip succeeded: 5/5 responses received
[2026-06-06T13:16:00Z] INFO: Test: payload_integrity
[2026-06-06T13:16:01Z] INFO: Response received, checking payload match...
[2026-06-06T13:16:01Z] INFO: Payload integrity verified (found in response)
[2026-06-06T13:16:01Z] INFO: Test: jumbo_diagnostics
[2026-06-06T13:16:01Z] INFO: === JUMBO FRAME DIAGNOSTICS ===
[2026-06-06T13:16:01Z] INFO: Interface MTU:
  1500
  9001
  65536
[2026-06-06T13:16:01Z] INFO:   docker0: MTU=1500
[2026-06-06T13:16:01Z] INFO:   ens5: MTU=9001
[2026-06-06T13:16:01Z] INFO:   lo: MTU=65536
[2026-06-06T13:16:01Z] INFO: Routing table MTU column:
Iface	Destination	Gateway 	Flags	RefCnt	Use	Metric	Mask		MTU	Window	IRTT                                                       
ens5	00000000	0101000A	0003	0	0	512	00000000	0	0	0                                                                             
ens5	0200000A	0101000A	0007	0	0	512	FFFFFFFF	0	0	0                                                                             
ens5	0001000A	00000000	0001	0	0	512	00FFFFFF	0	0	0                                                                             
ens5	0101000A	00000000	0005	0	0	512	FFFFFFFF	0	0	0                                                                             
[2026-06-06T13:16:01Z] INFO: DPDK port config (from echo server log):
[2026-06-06T13:16:01Z] INFO:   (no MTU info in echo log)
[2026-06-06T13:16:01Z] INFO: === END JUMBO DIAGNOSTICS ===
[2026-06-06T13:16:01Z] INFO: Test: jumbo_echo_8000
[2026-06-06T13:16:03Z] INFO: Jumbo output: UDP Test Client
Target: 10.0.1.183:9000
Bind address: 10.0.1.162:0
Payload size: 8000 bytes
Count: 3
EAL: Detected CPU lcores: 2
EAL: Detected NUMA nodes: 1
EAL: Detected shared linkage of DPDK
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: VFIO support initialized
EAL: Using IOMMU type 8 (No-IOMMU)
EAL: Probe PCI driver: net_ena (1d0f:ec20) device: 0000:00:06.0 (socket -1)
TELEMETRY: No legacy callbacks, legacy socket not created
Warning: Some RX offloads not supported by device (flags: 0x1)
Warning: Some TX offloads not supported by device (flags: 0x1)
✅ DPDK UDP socket bound to 10.0.1.162:32768 (MAC: 02:b8:da:dc:dd:8f)
Backend: dpdk
Sending packets...
Sent 8000 bytes (binary payload)
Received 8000 bytes from 10.0.1.183:9000 (expected 8000, OK)
Sent 8000 bytes (binary payload)
Received 8000 bytes from 10.0.1.183:9000 (expected 8000, OK)
Sent 8000 bytes (binary payload)
Received 8000 bytes from 10.0.1.183:9000 (expected 8000, OK)
Test complete
[2026-06-06T13:16:03Z] INFO: Jumbo frame echo succeeded: 3/3 responses with correct size
[2026-06-06T13:16:03Z] INFO: JUnit XML written to: /tmp/test-results/tier1-dpdk-echo.xml
[2026-06-06T13:16:03Z] INFO: Tier 1 sender tests complete. Results: /tmp/test-results/tier1-dpdk-echo.xml
[2026-06-06T13:19:47Z] INFO: Test: arp_resolution
UDP Test Client
Target: 10.0.1.183:9000
Bind address: 0.0.0.0:0
Message: 'arp-probe'
Count: 1
EAL: Detected CPU lcores: 2
EAL: Detected NUMA nodes: 1
EAL: Detected shared linkage of DPDK
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: VFIO support initialized
TELEMETRY: No legacy callbacks, legacy socket not created
DPDK bind failed (Port init failed: Invalid port ID: 0), falling back to tokio
Backend: tokio
Sending packets...
Sent 12 bytes: 'arp-probe #1'
Received 12 bytes from 10.0.1.183:9000: 'arp-probe #1'
Test complete
[2026-06-06T13:19:47Z] INFO: ARP resolution succeeded (got response from peer)
[2026-06-06T13:19:47Z] INFO: Test: udp_send_receive
[2026-06-06T13:19:48Z] INFO: UDP send/receive succeeded
[2026-06-06T13:19:48Z] INFO: Test: echo_roundtrip
[2026-06-06T13:19:49Z] INFO: Echo roundtrip succeeded: 5/5 responses received
[2026-06-06T13:19:49Z] INFO: Test: payload_integrity
[2026-06-06T13:19:49Z] INFO: Response received, checking payload match...
[2026-06-06T13:19:49Z] INFO: Payload integrity verified (found in response)
[2026-06-06T13:19:49Z] INFO: JUnit XML written to: /tmp/test-results/tier2-kernel-interop.xml
[2026-06-06T13:19:49Z] INFO: Tier 2 sender tests complete. Results: /tmp/test-results/tier2-kernel-interop.xml

receiver-test-client-iperf.log

[2026-06-06T13:24:57Z] INFO: iperf-sends: sent 10 packets, received 10 responses
[2026-06-06T13:24:57Z] INFO: iperf-sends: PASS (sent >= 5 packets)
[2026-06-06T13:24:57Z] INFO: JUnit XML written to: /tmp/test-results/tier3-iperf-sends.xml
[2026-06-06T13:24:57Z] INFO: iperf-sends test complete

sender-test-client-iperf.log

[2026-06-06T13:23:55Z] INFO: Pre-flight: checking DPDK state and ARP cache...
[2026-06-06T13:23:55Z] INFO: Local IP: 10.0.1.162, Peer IP: 10.0.1.183, Port: 9000
[2026-06-06T13:23:55Z] INFO: /proc/net/arp contents:
IP address       HW type     Flags       HW address            Mask     Device
10.0.1.1         0x1         0x2         02:bc:6b:95:f2:23     *        ens5
10.0.1.162       0x1         0x2         02:b8:da:dc:dd:8f     *        ens5
10.0.1.28        0x1         0x2         02:bd:d9:59:d0:b3     *        ens5
10.0.1.183       0x1         0x2         02:bc:ee:9b:0c:ff     *        ens5
10.0.1.232       0x1         0x2         02:09:3d:da:97:5b     *        ens5
[2026-06-06T13:23:55Z] INFO: DPDK runtime state:
No /var/run/dpdk/ directory
[2026-06-06T13:23:55Z] INFO: vfio-pci bindings:
0000:00:06.0
bind
module
new_id
remove_id
uevent
unbind
[2026-06-06T13:23:55Z] INFO: Test binary: /opt/dpdk-stdlib/target/release/test-client
-rwxr-xr-x. 2 root root 1916480 Jun  6 13:13 /opt/dpdk-stdlib/target/release/test-client
[2026-06-06T13:23:55Z] INFO: Launching test-client: /opt/dpdk-stdlib/target/release/test-client --target 10.0.1.183 --port 9000 --bind-ip 10.0.1.162 --count 10 --delay 200
[2026-06-06T13:23:58Z] INFO: Test client output: UDP Test Client
Target: 10.0.1.183:9000
Bind address: 10.0.1.162:0
Message: 'dpdk-to-kernel-test-payload'
Count: 10
EAL: Detected CPU lcores: 2
EAL: Detected NUMA nodes: 1
EAL: Detected shared linkage of DPDK
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: VFIO support initialized
EAL: Using IOMMU type 8 (No-IOMMU)
EAL: Probe PCI driver: net_ena (1d0f:ec20) device: 0000:00:06.0 (socket -1)
TELEMETRY: No legacy callbacks, legacy socket not created
Warning: Some RX offloads not supported by device (flags: 0x1)
Warning: Some TX offloads not supported by device (flags: 0x1)
✅ DPDK UDP socket bound to 10.0.1.162:32768 (MAC: 02:b8:da:dc:dd:8f)
Backend: dpdk
Sending packets...
Sent 30 bytes: 'dpdk-to-kernel-test-payload #1'
Received 30 bytes from 10.0.1.183:9000: 'dpdk-to-kernel-test-payload #1'
Sent 30 bytes: 'dpdk-to-kernel-test-payload #2'
Received 30 bytes from 10.0.1.183:9000: 'dpdk-to-kernel-test-payload #2'
Sent 30 bytes: 'dpdk-to-kernel-test-payload #3'
Received 30 bytes from 10.0.1.183:9000: 'dpdk-to-kernel-test-payload #3'
Sent 30 bytes: 'dpdk-to-kernel-test-payload #4'
Received 30 bytes from 10.0.1.183:9000: 'dpdk-to-kernel-test-payload #4'
Sent 30 bytes: 'dpdk-to-kernel-test-payload #5'
Received 30 bytes from 10.0.1.183:9000: 'dpdk-to-kernel-test-payload #5'
Sent 30 bytes: 'dpdk-to-kernel-test-payload #6'
Received 30 bytes from 10.0.1.183:9000: 'dpdk-to-kernel-test-payload #6'
Sent 30 bytes: 'dpdk-to-kernel-test-payload #7'
Received 30 bytes from 10.0.1.183:9000: 'dpdk-to-kernel-test-payload #7'
Sent 30 bytes: 'dpdk-to-kernel-test-payload #8'
Received 30 bytes from 10.0.1.183:9000: 'dpdk-to-kernel-test-payload #8'
Sent 30 bytes: 'dpdk-to-kernel-test-payload #9'
Received 30 bytes from 10.0.1.183:9000: 'dpdk-to-kernel-test-payload #9'
Sent 31 bytes: 'dpdk-to-kernel-test-payload #10'
Received 31 bytes from 10.0.1.183:9000: 'dpdk-to-kernel-test-payload #10'
Test complete
[2026-06-06T13:23:58Z] INFO: our-app-sends: sent 10 packets, received 10 responses
[2026-06-06T13:23:58Z] INFO: our-app-sends: PASS (sent >= 5 packets)
[2026-06-06T13:23:58Z] INFO: JUnit XML written to: /tmp/test-results/tier3-our-app-sends.xml
[2026-06-06T13:23:58Z] INFO: our-app-sends test complete
⚠️ SSM Command Failures (receiver-ssm-failure.log) 
=== Polling timeout after 30s ===
Status: InProgress
Instance: i-09a658d0a61b106c0 (receiver)
Command ID: 70532d03-6989-40eb-99c8-26f028dad79c

=== STDOUT ===


=== STDERR ===


=== Polling timeout after 30s ===
Status: InProgress
Instance: i-09a658d0a61b106c0 (receiver)
Command ID: 238c0828-65a8-4584-b3ca-2c7ed827d2ac

=== STDOUT ===


=== STDERR ===


=== Polling timeout after 30s ===
Status: InProgress
Instance: i-09a658d0a61b106c0 (receiver)
Command ID: d052f5a8-eb8f-46b0-a024-33cfd29472e8

=== STDOUT ===


=== STDERR ===


=== Polling timeout after 30s ===
Status: InProgress
Instance: i-09a658d0a61b106c0 (receiver)
Command ID: a51f0616-e1fc-4282-b389-672f7fac4937

=== STDOUT ===


=== STDERR ===
⚠️ SSM Command Failures (sender-ssm-failure.log) 
=== Polling timeout after 30s ===
Status: InProgress
Instance: i-0ea4ec8863d843497 (sender)
Command ID: 38d821ea-06d9-4e56-8668-c4015e921a69

=== STDOUT ===


=== STDERR ===
Network & PCI State

receiver-network-interfaces.log

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host noprefixroute 
       valid_lft forever preferred_lft forever
2: ens5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9001 qdisc mq state UP group default qlen 1000
    link/ether 02:bc:b6:37:5a:ff brd ff:ff:ff:ff:ff:ff
    altname enp0s5
    altname eni-0d68c50c5908345a4
    altname device-number-0.0
    inet 10.0.1.20/24 metric 512 brd 10.0.1.255 scope global dynamic ens5
       valid_lft 2320sec preferred_lft 2320sec
    inet6 fe80::bc:b6ff:fe37:5aff/64 scope link proto kernel_ll 
       valid_lft forever preferred_lft forever
3: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default 
    link/ether 02:42:f4:27:db:54 brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
       valid_lft forever preferred_lft forever

sender-network-interfaces.log

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host noprefixroute 
       valid_lft forever preferred_lft forever
2: ens5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9001 qdisc mq state UP group default qlen 1000
    link/ether 02:1c:69:f1:34:3d brd ff:ff:ff:ff:ff:ff
    altname enp0s5
    altname eni-0689af54bec374295
    altname device-number-0.0
    inet 10.0.1.248/24 metric 512 brd 10.0.1.255 scope global dynamic ens5
       valid_lft 2342sec preferred_lft 2342sec
    inet6 fe80::1c:69ff:fef1:343d/64 scope link proto kernel_ll 
       valid_lft forever preferred_lft forever
3: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default 
    link/ether 02:42:73:04:ee:e1 brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
       valid_lft forever preferred_lft forever

receiver-networking-diag-baseline.txt

=== NETWORKING DIAGNOSTICS ===
timestamp: 2026-06-06T13:15:17Z
hostname: ip-10-0-1-20.ec2.internal
kernel: 6.1.172-216.329.amzn2023.x86_64

=== DPDK PORT STATUS ===

Network devices using DPDK-compatible driver
============================================
0000:00:06.0 'Elastic Network Adapter (ENA) ec20' drv=vfio-pci unused=ena

Network devices using kernel driver
===================================
0000:00:05.0 'Elastic Network Adapter (ENA) ec20' if=ens5 drv=ena unused=vfio-pci *Active*

No 'Baseband' devices detected
==============================

No 'Crypto' devices detected
============================

No 'DMA' devices detected
=========================

No 'Eventdev' devices detected
==============================

No 'Mempool' devices detected
=============================

No 'Compress' devices detected
==============================

No 'Misc (rawdev)' devices detected
===================================

No 'Regex' devices detected
===========================

=== IP ADDRESSES ===
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host noprefixroute 
       valid_lft forever preferred_lft forever
2: ens5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9001 qdisc mq state UP group default qlen 1000
    link/ether 02:bc:b6:37:5a:ff brd ff:ff:ff:ff:ff:ff
    altname enp0s5
    altname eni-0d68c50c5908345a4
    altname device-number-0.0
    inet 10.0.1.20/24 metric 512 brd 10.0.1.255 scope global dynamic ens5
       valid_lft 3203sec preferred_lft 3203sec
    inet6 fe80::bc:b6ff:fe37:5aff/64 scope link proto kernel_ll 
       valid_lft forever preferred_lft forever
3: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default 
    link/ether 02:42:f4:27:db:54 brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
       valid_lft forever preferred_lft forever

=== ARP TABLE ===
10.0.1.232 dev ens5 lladdr 02:09:3d:da:97:5b REACHABLE 
10.0.1.1 dev ens5 lladdr 02:bc:6b:95:f2:23 REACHABLE 

=== ROUTE TABLE ===
default via 10.0.1.1 dev ens5 proto dhcp src 10.0.1.20 metric 512 
10.0.0.2 via 10.0.1.1 dev ens5 proto dhcp src 10.0.1.20 metric 512 
10.0.1.0/24 dev ens5 proto kernel scope link src 10.0.1.20 metric 512 
10.0.1.1 dev ens5 proto dhcp scope link src 10.0.1.20 metric 512 
172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 linkdown 

=== IMDS: ENI INFORMATION ===
ENI MACs found: 02:bc:b6:37:5a:ff/ 02:bc:ee:9b:0c:ff/ 

--- ENI: 02:bc:b6:37:5a:ff/ ---
  device-number: 0
  local-ipv4s: 10.0.1.20
  subnet-id: subnet-01c3632f6e59adb4f
  subnet-cidr: 10.0.1.0/24

--- ENI: 02:bc:ee:9b:0c:ff/ ---
  device-number: 1
  local-ipv4s: 10.0.1.183
  subnet-id: subnet-01c3632f6e59adb4f
  subnet-cidr: 10.0.1.0/24


=== GATEWAY ARP TEST ===
Gateway IP: 10.0.1.1
Gateway ARP entry:
10.0.1.1 dev ens5 lladdr 02:bc:6b:95:f2:23 REACHABLE 

arping result:
ARPING 10.0.1.1 from 10.0.1.20 ens5
Unicast reply from 10.0.1.1 [02:BC:6B:95:F2:23]  0.532ms
Sent 1 probes (1 broadcast(s))
Received 1 response(s)

=== HUGEPAGE STATUS ===
AnonHugePages:         0 kB
ShmemHugePages:        0 kB
FileHugePages:         0 kB
HugePages_Total:    1024
HugePages_Free:     1024
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
Hugetlb:         2097152 kB

=== VFIO STATUS ===
total 0
drwxr-xr-x.  2 root root       80 Jun  6 13:15 .
drwxr-xr-x. 14 root root     3100 Jun  6 13:14 ..
crw-------.  1 root root 243,   0 Jun  6 13:15 noiommu-0
crw-rw-rw-.  1 root root  10, 196 Jun  6 13:08 vfio

noiommu mode:
Y

=== DPDK SHARED MEMORY ===
no /var/run/dpdk/ directory (clean state)

=== DPDK-RELATED DMESG (last 30 lines) ===
[    0.065785] x86/fpu: Enabled xstate features 0x2ff, context size is 2568 bytes, using 'compacted' format.
[    0.072355] audit: type=2000 audit(1780751314.848:1): state=initialized audit_enabled=0 res=1
[    0.074699] kprobes: kprobe jump-optimization is enabled. All kprobes are optimized if possible.
[    0.098870] ACPI: Interpreter enabled
[    0.098870] ACPI: Enabled 2 GPEs in block 00 to 0F
[    0.123515] pci 0000:00:05.0: enabling Extended Tags
[    0.146268] SGI XFS with ACLs, security attributes, quota, no debug enabled
[    0.196616] ACPI: \_SB_.LNKD: Enabled at IRQ 11
[    0.255428] IPI shorthand broadcast: enabled
[    0.255490] AES CTR mode by8 optimization enabled
[    2.474800] systemd[1]: Mounting dev-hugepages.mount - Huge Pages File System...
[    2.517486] systemd[1]: Mounted dev-hugepages.mount - Huge Pages File System.
[    2.557576] VFIO - User Level meta-driver version: 0.3
[    3.675488] ena 0000:00:05.0: Elastic Network Adapter (ENA) v2.16.1g
[    3.705735] ena 0000:00:05.0: ENA device version: 0.10
[    3.706425] ena 0000:00:05.0: ENA controller version: 0.0.1 implementation version 1
[    3.804737] ena 0000:00:05.0: ENA Large LLQ is disabled
[    3.816723] ena 0000:00:05.0: Elastic Network Adapter (ENA) found at mem c0500000, mac addr 02:bc:b6:37:5a:ff
[    3.865276] ena 0000:00:05.0 ens5: renamed from eth0
[    4.669628] ena 0000:00:05.0 ens5: Local page cache is disabled for less than 16 channels
[  351.883948] pci 0000:00:06.0: enabling Extended Tags
[  351.887618] ena 0000:00:06.0: enabling device (0000 -> 0002)
[  351.895987] ena 0000:00:06.0: ENA device version: 0.10
[  351.896729] ena 0000:00:06.0: ENA controller version: 0.0.1 implementation version 1
[  351.995970] ena 0000:00:06.0: ENA Large LLQ is disabled
[  352.007736] ena 0000:00:06.0: Elastic Network Adapter (ENA) found at mem c0508000, mac addr 02:bc:ee:9b:0c:ff
[  352.066010] ena 0000:00:06.0 ens6: renamed from eth0
[  352.368393] ena 0000:00:06.0 ens6: Local page cache is disabled for less than 16 channels
[  389.810716] vfio-pci 0000:00:06.0: Adding to iommu group 0
[  389.811985] vfio-pci 0000:00:06.0: Adding kernel taint for vfio-noiommu group on device

=== DPDK-RELATED PROCESSES ===
no DPDK processes running

=== END DIAGNOSTICS ===

sender-networking-diag-baseline.txt

=== NETWORKING DIAGNOSTICS ===
timestamp: 2026-06-06T13:15:10Z
hostname: ip-10-0-1-248.ec2.internal
kernel: 6.1.172-216.329.amzn2023.x86_64

=== DPDK PORT STATUS ===

Network devices using DPDK-compatible driver
============================================
0000:00:06.0 'Elastic Network Adapter (ENA) ec20' drv=vfio-pci unused=ena

Network devices using kernel driver
===================================
0000:00:05.0 'Elastic Network Adapter (ENA) ec20' if=ens5 drv=ena unused=vfio-pci *Active*

No 'Baseband' devices detected
==============================

No 'Crypto' devices detected
============================

No 'DMA' devices detected
=========================

No 'Eventdev' devices detected
==============================

No 'Mempool' devices detected
=============================

No 'Compress' devices detected
==============================

No 'Misc (rawdev)' devices detected
===================================

No 'Regex' devices detected
===========================

=== IP ADDRESSES ===
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host noprefixroute 
       valid_lft forever preferred_lft forever
2: ens5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9001 qdisc mq state UP group default qlen 1000
    link/ether 02:1c:69:f1:34:3d brd ff:ff:ff:ff:ff:ff
    altname enp0s5
    altname eni-0689af54bec374295
    altname device-number-0.0
    inet 10.0.1.248/24 metric 512 brd 10.0.1.255 scope global dynamic ens5
       valid_lft 3211sec preferred_lft 3211sec
    inet6 fe80::1c:69ff:fef1:343d/64 scope link proto kernel_ll 
       valid_lft forever preferred_lft forever
3: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default 
    link/ether 02:42:73:04:ee:e1 brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
       valid_lft forever preferred_lft forever

=== ARP TABLE ===
10.0.1.1 dev ens5 lladdr 02:bc:6b:95:f2:23 REACHABLE 
10.0.1.232 dev ens5 lladdr 02:09:3d:da:97:5b REACHABLE 

=== ROUTE TABLE ===
default via 10.0.1.1 dev ens5 proto dhcp src 10.0.1.248 metric 512 
10.0.0.2 via 10.0.1.1 dev ens5 proto dhcp src 10.0.1.248 metric 512 
10.0.1.0/24 dev ens5 proto kernel scope link src 10.0.1.248 metric 512 
10.0.1.1 dev ens5 proto dhcp scope link src 10.0.1.248 metric 512 
172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 linkdown 

=== IMDS: ENI INFORMATION ===
ENI MACs found: 02:1c:69:f1:34:3d/ 02:b8:da:dc:dd:8f/ 

--- ENI: 02:1c:69:f1:34:3d/ ---
  device-number: 0
  local-ipv4s: 10.0.1.248
  subnet-id: subnet-01c3632f6e59adb4f
  subnet-cidr: 10.0.1.0/24

--- ENI: 02:b8:da:dc:dd:8f/ ---
  device-number: 1
  local-ipv4s: 10.0.1.162
  subnet-id: subnet-01c3632f6e59adb4f
  subnet-cidr: 10.0.1.0/24


=== GATEWAY ARP TEST ===
Gateway IP: 10.0.1.1
Gateway ARP entry:
10.0.1.1 dev ens5 lladdr 02:bc:6b:95:f2:23 REACHABLE 

arping result:
ARPING 10.0.1.1 from 10.0.1.248 ens5
Unicast reply from 10.0.1.1 [02:BC:6B:95:F2:23]  0.540ms
Sent 1 probes (1 broadcast(s))
Received 1 response(s)

=== HUGEPAGE STATUS ===
AnonHugePages:         0 kB
ShmemHugePages:        0 kB
FileHugePages:         0 kB
HugePages_Total:    1024
HugePages_Free:     1024
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
Hugetlb:         2097152 kB

=== VFIO STATUS ===
total 0
drwxr-xr-x.  2 root root       80 Jun  6 13:14 .
drwxr-xr-x. 14 root root     3100 Jun  6 13:14 ..
crw-------.  1 root root 243,   0 Jun  6 13:14 noiommu-0
crw-rw-rw-.  1 root root  10, 196 Jun  6 13:08 vfio

noiommu mode:
Y

=== DPDK SHARED MEMORY ===
no /var/run/dpdk/ directory (clean state)

=== DPDK-RELATED DMESG (last 30 lines) ===
[    0.067939] x86/fpu: Enabled xstate features 0x2ff, context size is 2568 bytes, using 'compacted' format.
[    0.074501] audit: type=2000 audit(1780751315.023:1): state=initialized audit_enabled=0 res=1
[    0.076872] kprobes: kprobe jump-optimization is enabled. All kprobes are optimized if possible.
[    0.101052] ACPI: Interpreter enabled
[    0.101052] ACPI: Enabled 2 GPEs in block 00 to 0F
[    0.126478] pci 0000:00:05.0: enabling Extended Tags
[    0.158363] SGI XFS with ACLs, security attributes, quota, no debug enabled
[    0.188125] ACPI: \_SB_.LNKD: Enabled at IRQ 11
[    0.268638] IPI shorthand broadcast: enabled
[    0.268703] AES CTR mode by8 optimization enabled
[    2.424841] systemd[1]: Mounting dev-hugepages.mount - Huge Pages File System...
[    2.467641] systemd[1]: Mounted dev-hugepages.mount - Huge Pages File System.
[    2.518043] VFIO - User Level meta-driver version: 0.3
[    3.577260] ena 0000:00:05.0: Elastic Network Adapter (ENA) v2.16.1g
[    3.586441] ena 0000:00:05.0: ENA device version: 0.10
[    3.587153] ena 0000:00:05.0: ENA controller version: 0.0.1 implementation version 1
[    3.699994] ena 0000:00:05.0: ENA Large LLQ is disabled
[    3.712843] ena 0000:00:05.0: Elastic Network Adapter (ENA) found at mem c0500000, mac addr 02:1c:69:f1:34:3d
[    3.774758] ena 0000:00:05.0 ens5: renamed from eth0
[    4.584237] ena 0000:00:05.0 ens5: Local page cache is disabled for less than 16 channels
[  331.638898] pci 0000:00:06.0: enabling Extended Tags
[  331.642497] ena 0000:00:06.0: enabling device (0000 -> 0002)
[  331.653355] ena 0000:00:06.0: ENA device version: 0.10
[  331.654068] ena 0000:00:06.0: ENA controller version: 0.0.1 implementation version 1
[  331.753339] ena 0000:00:06.0: ENA Large LLQ is disabled
[  331.765742] ena 0000:00:06.0: Elastic Network Adapter (ENA) found at mem c0508000, mac addr 02:b8:da:dc:dd:8f
[  331.813519] ena 0000:00:06.0 ens6: renamed from eth0
[  332.289513] ena 0000:00:06.0 ens6: Local page cache is disabled for less than 16 channels
[  382.957955] vfio-pci 0000:00:06.0: Adding to iommu group 0
[  382.959337] vfio-pci 0000:00:06.0: Adding kernel taint for vfio-noiommu group on device

=== DPDK-RELATED PROCESSES ===
no DPDK processes running

=== END DIAGNOSTICS ===
⚠️ Crash Diagnostics

receiver-dmesg-crashes.log

[    0.072355] pid_max: default: 32768 minimum: 301
[    0.125562] iommu: Default domain type: Translated 
[    0.126264] NetLabel:  unlabeled traffic allowed by default
[    0.132355] PCI: CLS 0 bytes, default 64
[    0.213909] nvme nvme0: 2/0/0 default/read/poll queues
[    0.420359] systemd[1]: systemd 252.23-11.amzn2023 running in system mode (+PAM +AUDIT +SELINUX -APPARMOR +IMA +SMACK +SECCOMP -GCRYPT -GNUTLS +OPENSSL +ACL +BLKID +CURL +ELFUTILS +FIDO2 +IDN2 -IDN -IPTC +KMOD +LIBCRYPTSETUP +LIBFDISK +PCRE2 +PWQUALITY +P11KIT +QRENCODE +TPM2 -BZIP2 -LZ4 +XZ +ZLIB -ZSTD +BPF_FRAMEWORK +XKBCOMMON +UTMP +SYSVINIT default-hierarchy=unified)
[    0.420453] systemd[1]: No hostname configured, using default hostname.
[    0.507159] systemd[1]: Queued start job for default target initrd.target.
[    1.704876] systemd[1]: systemd 252.23-11.amzn2023 running in system mode (+PAM +AUDIT +SELINUX -APPARMOR +IMA +SMACK +SECCOMP -GCRYPT -GNUTLS +OPENSSL +ACL +BLKID +CURL +ELFUTILS +FIDO2 +IDN2 -IDN -IPTC +KMOD +LIBCRYPTSETUP +LIBFDISK +PCRE2 +PWQUALITY +P11KIT +QRENCODE +TPM2 -BZIP2 -LZ4 +XZ +ZLIB -ZSTD +BPF_FRAMEWORK +XKBCOMMON +UTMP +SYSVINIT default-hierarchy=unified)
[    8.096995] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[  426.448732] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (echo:9883)
[  656.962239] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (echo:13703)
[ 1148.791705] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (echo:32829)

sender-dmesg-crashes.log

[    0.074501] pid_max: default: 32768 minimum: 301
[    0.128545] iommu: Default domain type: Translated 
[    0.129252] NetLabel:  unlabeled traffic allowed by default
[    0.144367] PCI: CLS 0 bytes, default 64
[    0.209444] nvme nvme0: 2/0/0 default/read/poll queues
[    0.433458] systemd[1]: systemd 252.23-11.amzn2023 running in system mode (+PAM +AUDIT +SELINUX -APPARMOR +IMA +SMACK +SECCOMP -GCRYPT -GNUTLS +OPENSSL +ACL +BLKID +CURL +ELFUTILS +FIDO2 +IDN2 -IDN -IPTC +KMOD +LIBCRYPTSETUP +LIBFDISK +PCRE2 +PWQUALITY +P11KIT +QRENCODE +TPM2 -BZIP2 -LZ4 +XZ +ZLIB -ZSTD +BPF_FRAMEWORK +XKBCOMMON +UTMP +SYSVINIT default-hierarchy=unified)
[    0.433557] systemd[1]: No hostname configured, using default hostname.
[    0.538114] systemd[1]: Queued start job for default target initrd.target.
[    1.636432] systemd[1]: systemd 252.23-11.amzn2023 running in system mode (+PAM +AUDIT +SELINUX -APPARMOR +IMA +SMACK +SECCOMP -GCRYPT -GNUTLS +OPENSSL +ACL +BLKID +CURL +ELFUTILS +FIDO2 +IDN2 -IDN -IPTC +KMOD +LIBCRYPTSETUP +LIBFDISK +PCRE2 +PWQUALITY +P11KIT +QRENCODE +TPM2 -BZIP2 -LZ4 +XZ +ZLIB -ZSTD +BPF_FRAMEWORK +XKBCOMMON +UTMP +SYSVINIT default-hierarchy=unified)
[    8.155765] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[  964.793227] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (echo:19303)
Kernel Console (dmesg)

receiver-console-output.log (PCI/driver events only)

[  351.886675] pci 0000:00:06.0: BAR 0 [mem 0xc0508000-0xc050bfff]: assigned
[  351.887618] ena 0000:00:06.0: enabling device (0000 -> 0002)
[  351.895987] ena 0000:00:06.0: ENA device version: 0.10
[  351.896729] ena 0000:00:06.0: ENA controller version: 0.0.1 implementation version 1
[  351.995970] ena 0000:00:06.0: ENA Large LLQ is disabled
[  352.007736] ena 0000:00:06.0: Elastic Network Adapter (ENA) found at mem c0508000, mac addr 02:bc:ee:9b:0c:ff
[  352.066010] ena 0000:00:06.0 ens6: renamed from eth0
[  352.368393] ena 0000:00:06.0 ens6: Local page cache is disabled for less than 16 channels
[  389.810716] vfio-pci 0000:00:06.0: Adding to iommu group 0
[  389.811985] vfio-pci 0000:00:06.0: Adding kernel taint for vfio-noiommu group on device
[  426.448732] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (echo:9883)
[  506.496835] vfio-pci 0000:00:06.0: Removing from iommu group 0
[  507.506563] ena 0000:00:06.0: ENA device version: 0.10
[  507.507291] ena 0000:00:06.0: ENA controller version: 0.0.1 implementation version 1
[  507.606543] ena 0000:00:06.0: ENA Large LLQ is disabled
[  507.618566] ena 0000:00:06.0: Elastic Network Adapter (ENA) found at mem c0508000, mac addr 02:bc:ee:9b:0c:ff
[  507.666718] ena 0000:00:06.0 ens6: renamed from eth0
[  507.747534] ena 0000:00:06.0 ens6: Local page cache is disabled for less than 16 channels
[  527.234602] vfio-pci 0000:00:06.0: Adding to iommu group 0
[  527.235867] vfio-pci 0000:00:06.0: Adding kernel taint for vfio-noiommu group on device
[  656.962239] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (echo:13703)
[  731.262134] vfio-pci 0000:00:06.0: Removing from iommu group 0
[  732.274955] ena 0000:00:06.0: ENA device version: 0.10
[  732.275710] ena 0000:00:06.0: ENA controller version: 0.0.1 implementation version 1
[  732.376885] ena 0000:00:06.0: ENA Large LLQ is disabled
[  732.389454] ena 0000:00:06.0: Elastic Network Adapter (ENA) found at mem c0508000, mac addr 02:bc:ee:9b:0c:ff
[  732.398672] ena 0000:00:06.0 eth0: Local page cache is disabled for less than 16 channels
[ 1063.652925] vfio-pci 0000:00:06.0: Adding to iommu group 0
[ 1063.654249] vfio-pci 0000:00:06.0: Adding kernel taint for vfio-noiommu group on device
[ 1148.791705] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (echo:32829)

sender-console-output.log (PCI/driver events only)

[  382.959337] vfio-pci 0000:00:06.0: Adding kernel taint for vfio-noiommu group on device
[  442.075429] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (tokio-rt-worker:10246)
[  442.835313] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (tokio-rt-worker:10266)
[  444.595344] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (tokio-rt-worker:10288)
[  446.165297] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (tokio-rt-worker:10311)
[  446.965274] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (tokio-rt-worker:10371)
[  496.565553] vfio-pci 0000:00:06.0: Removing from iommu group 0
[  497.578814] ena 0000:00:06.0: ENA device version: 0.10
[  497.579608] ena 0000:00:06.0: ENA controller version: 0.0.1 implementation version 1
[  497.680836] ena 0000:00:06.0: ENA Large LLQ is disabled
[  497.693951] ena 0000:00:06.0: Elastic Network Adapter (ENA) found at mem c0508000, mac addr 02:b8:da:dc:dd:8f
[  497.742675] ena 0000:00:06.0 ens6: renamed from eth0
[  497.794570] ena 0000:00:06.0 ens6: Local page cache is disabled for less than 16 channels
[  786.875567] vfio-pci 0000:00:06.0: Adding to iommu group 0
[  786.877091] vfio-pci 0000:00:06.0: Adding kernel taint for vfio-noiommu group on device
[  920.843422] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (tokio-rt-worker:18503)
[  964.793227] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (echo:19303)
[ 1026.372337] vfio-pci 0000:00:06.0: Removing from iommu group 0
[ 1027.380398] ena 0000:00:06.0: ENA device version: 0.10
[ 1027.381185] ena 0000:00:06.0: ENA controller version: 0.0.1 implementation version 1
[ 1027.480375] ena 0000:00:06.0: ENA Large LLQ is disabled
[ 1027.492541] ena 0000:00:06.0: Elastic Network Adapter (ENA) found at mem c0508000, mac addr 02:b8:da:dc:dd:8f
[ 1027.550449] ena 0000:00:06.0 ens6: renamed from eth0
[ 1027.643499] ena 0000:00:06.0 ens6: Local page cache is disabled for less than 16 channels
[ 1056.804338] vfio-pci 0000:00:06.0: Adding to iommu group 0
[ 1056.805705] vfio-pci 0000:00:06.0: Adding kernel taint for vfio-noiommu group on device
[ 1164.472332] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (tokio-rt-worker:22619)
[ 1165.232151] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (tokio-rt-worker:22639)
[ 1166.992256] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (tokio-rt-worker:22662)
[ 1168.752269] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (tokio-rt-worker:22685)

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✅ Integration Tests Passed — Graviton (run)

Branch: 71/merge | Commit: 78ce8de8

Test Results

  • tier1-dpdk-echo.xml: 6 tests, 0 failures
  • tier2-kernel-interop.xml: 4 tests, 0 failures
  • tier3-iperf-sends.xml: 1 tests, 0 failures
  • tier3-our-app-sends.xml: 1 tests, 0 failures

Application Logs (last 20 lines)

receiver-echo-server.log

EAL: Detected CPU lcores: 2
EAL: Detected NUMA nodes: 1
EAL: Detected shared linkage of DPDK
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: VFIO support initialized
EAL: Using IOMMU type 8 (No-IOMMU)
EAL: Probe PCI driver: net_ena (1d0f:ec20) device: 0000:00:06.0 (socket -1)
TELEMETRY: No legacy callbacks, legacy socket not created
Warning: Some RX offloads not supported by device (flags: 0x1)
Warning: Some TX offloads not supported by device (flags: 0x1)
✅ DPDK UDP socket bound to 10.0.1.51:9000 (MAC: 02:32:e9:11:11:b3)
echo listening on 10.0.1.51:9000 (MTU=9001, max_udp_payload=8973)
Shutting down gracefully...

sender-echo-server.log

EAL: Detected CPU lcores: 2
EAL: Detected NUMA nodes: 1
EAL: Detected shared linkage of DPDK
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: VFIO support initialized
EAL: Using IOMMU type 8 (No-IOMMU)
EAL: Probe PCI driver: net_ena (1d0f:ec20) device: 0000:00:06.0 (socket -1)
TELEMETRY: No legacy callbacks, legacy socket not created
Warning: Some RX offloads not supported by device (flags: 0x1)
Warning: Some TX offloads not supported by device (flags: 0x1)
✅ DPDK UDP socket bound to 10.0.1.249:9000 (MAC: 02:a2:2b:82:99:87)
echo listening on 10.0.1.249:9000 (MTU=9001, max_udp_payload=8973)
Shutting down gracefully...

sender-test-client.log

EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: VFIO support initialized
TELEMETRY: No legacy callbacks, legacy socket not created
DPDK bind failed (Port init failed: Invalid port ID: 0), falling back to tokio
Backend: tokio
Sending packets...
Sent 12 bytes: 'arp-probe #1'
Received 12 bytes from 10.0.1.51:9000: 'arp-probe #1'
Test complete
[2026-06-06T13:18:57Z] INFO: ARP resolution succeeded (got response from peer)
[2026-06-06T13:18:57Z] INFO: Test: udp_send_receive
[2026-06-06T13:18:58Z] INFO: UDP send/receive succeeded
[2026-06-06T13:18:58Z] INFO: Test: echo_roundtrip
[2026-06-06T13:18:59Z] INFO: Echo roundtrip succeeded: 5/5 responses received
[2026-06-06T13:18:59Z] INFO: Test: payload_integrity
[2026-06-06T13:18:59Z] INFO: Response received, checking payload match...
[2026-06-06T13:18:59Z] INFO: Payload integrity verified (found in response)
[2026-06-06T13:18:59Z] INFO: JUnit XML written to: /tmp/test-results/tier2-kernel-interop.xml
[2026-06-06T13:18:59Z] INFO: Tier 2 sender tests complete. Results: /tmp/test-results/tier2-kernel-interop.xml

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[Perf] Stage: Deploy

Deploying PerfTestStack...
Configs: plain-rust,rust-dpdk,tokio-dpdk,native-dpdk
Packet sizes: 64,512,1400,8500

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[Perf] Stage: Instances Ready

  • TRex: i-08ae99b50900490dc (10.0.1.113)
  • DUT: i-0faecaecb1316e361 (10.0.1.69)
  • Instance type: unknown

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[Perf] Stage: TRex Config

Starting TRex configuration (MAC discovery + NIC binding)...

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[Perf] Stage: TRex Config OK

  • TX: 0000:00:06.0 MAC: 02:a4:b9:95:1d:a3
  • RX: 0000:00:07.0 MAC: 02:40:7d:95:6e:21
  • Gateway MAC: 02:41:a4:90:0f:97
    Starting TRex server...

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[Perf] Stage: TRex Started

TRex server running. Beginning benchmarks...

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[Perf] DUT Ready

DUT instance i-0faecaecb1316e361 SSM working, build complete.

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[Perf] Stage: Benchmark (1/4)

Running plain-rust benchmark...
Packet sizes: 64,512,1400,8500 | Duration: 30s/step | Target PPS: 70000,140000,350000,700000

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[Perf] Benchmark Diag: plain-rust preflight

TRex API OK: 2 ports
  Port 0: 02:a4:b9:95:1d:a3
  Port 1: 02:40:7d:95:6e:21
PREFLIGHT_OK

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[Perf] Benchmark Diag: plain-rust result

SSM exit: 0

Output (last 30 lines) 
Duration per step: 30s
Source MAC: 02:a4:b9:95:1d:a3

--- Packet size: 64B ---
  Target: 70,000 pps ... TX: 70,000 pps, RX: 69,000 pps, Drop: 1.4286%, Lat avg: 0.0 us
  Target: 140,000 pps ... TX: 140,000 pps, RX: 138,998 pps, Drop: 0.7155%, Lat avg: 0.0 us
  Target: 350,000 pps ... TX: 350,000 pps, RX: 322,066 pps, Drop: 7.9811%, Lat avg: 0.0 us
  Target: 700,000 pps ... TX: 700,000 pps, RX: 501,484 pps, Drop: 28.3594%, Lat avg: 433.0 us

--- Packet size: 512B ---
  Target: 70,000 pps ... TX: 70,000 pps, RX: 68,991 pps, Drop: 1.4422%, Lat avg: 220.0 us
  Target: 140,000 pps ... TX: 140,000 pps, RX: 138,980 pps, Drop: 0.7285%, Lat avg: 308.0 us
  Target: 350,000 pps ... TX: 350,000 pps, RX: 309,241 pps, Drop: 11.6456%, Lat avg: 0.0 us
  Target: 700,000 pps ... TX: 700,000 pps, RX: 468,547 pps, Drop: 33.0647%, Lat avg: 0.0 us

--- Packet size: 1400B ---
  Target: 70,000 pps ... TX: 70,000 pps, RX: 69,000 pps, Drop: 1.4289%, Lat avg: 0.0 us
  Target: 140,000 pps ... TX: 140,000 pps, RX: 138,974 pps, Drop: 0.7327%, Lat avg: 257.0 us
  Target: 350,000 pps ... TX: 350,000 pps, RX: 305,528 pps, Drop: 12.7064%, Lat avg: 0.0 us
  Target: 700,000 pps ... TX: 476,638 pps, RX: 393,212 pps, Drop: 17.503%, Lat avg: 0.0 us

--- Packet size: 8500B ---
  (jumbo: capping at 418,133 pps for 30.0 Gbps limit)
  Target: 70,000 pps ... TX: 70,000 pps, RX: 37,631 pps, Drop: 46.2411%, Lat avg: 0.0 us
  Target: 140,000 pps ... TX: 78,300 pps, RX: 77,160 pps, Drop: 1.4565%, Lat avg: 13879.0 us
  Target: 350,000 pps ... TX: 78,351 pps, RX: 77,053 pps, Drop: 1.656%, Lat avg: 0.0 us
  Target: 700,000 pps ... SKIPPED (exceeds 30.0 Gbps cap)

Results written to /tmp/perf-results/plain-rust.json
EXIT_CODE=0

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[Perf] Stage: Benchmark (2/4)

Running rust-dpdk benchmark...
Packet sizes: 64,512,1400,8500 | Duration: 30s/step | Target PPS: 70000,140000,350000,700000

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[Perf] Benchmark Diag: rust-dpdk preflight

TRex API OK: 2 ports
  Port 0: 02:a4:b9:95:1d:a3
  Port 1: 02:40:7d:95:6e:21
PREFLIGHT_OK

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[Perf] Benchmark Diag: rust-dpdk result

SSM exit: 0

Output (last 30 lines) 
Duration per step: 30s
Source MAC: 02:a4:b9:95:1d:a3

--- Packet size: 64B ---
  Target: 70,000 pps ... TX: 70,000 pps, RX: 69,000 pps, Drop: 1.4286%, Lat avg: 0.0 us
  Target: 140,000 pps ... TX: 140,000 pps, RX: 138,959 pps, Drop: 0.7435%, Lat avg: 224.0 us
  Target: 350,000 pps ... TX: 350,000 pps, RX: 348,784 pps, Drop: 0.3474%, Lat avg: 0.0 us
  Target: 700,000 pps ... TX: 700,000 pps, RX: 698,349 pps, Drop: 0.2359%, Lat avg: 0.0 us

--- Packet size: 512B ---
  Target: 70,000 pps ... TX: 70,000 pps, RX: 69,000 pps, Drop: 1.4286%, Lat avg: 0.0 us
  Target: 140,000 pps ... TX: 140,000 pps, RX: 139,000 pps, Drop: 0.7143%, Lat avg: 0.0 us
  Target: 350,000 pps ... TX: 350,000 pps, RX: 348,892 pps, Drop: 0.3166%, Lat avg: 180.0 us
  Target: 700,000 pps ... TX: 700,000 pps, RX: 696,932 pps, Drop: 0.4383%, Lat avg: 0.0 us

--- Packet size: 1400B ---
  Target: 70,000 pps ... TX: 70,000 pps, RX: 68,994 pps, Drop: 1.4374%, Lat avg: 0.0 us
  Target: 140,000 pps ... TX: 140,000 pps, RX: 138,952 pps, Drop: 0.7485%, Lat avg: 0.0 us
  Target: 350,000 pps ... TX: 350,000 pps, RX: 348,989 pps, Drop: 0.2889%, Lat avg: 211.0 us
  Target: 700,000 pps ... TX: 476,668 pps, RX: 475,058 pps, Drop: 0.3379%, Lat avg: 0.0 us

--- Packet size: 8500B ---
  (jumbo: capping at 418,133 pps for 30.0 Gbps limit)
  Target: 70,000 pps ... TX: 70,000 pps, RX: 69,000 pps, Drop: 1.429%, Lat avg: 596.0 us
  Target: 140,000 pps ... TX: 78,330 pps, RX: 74,422 pps, Drop: 4.9901%, Lat avg: 0.0 us
  Target: 350,000 pps ... TX: 78,354 pps, RX: 77,866 pps, Drop: 0.6236%, Lat avg: 0.0 us
  Target: 700,000 pps ... SKIPPED (exceeds 30.0 Gbps cap)

Results written to /tmp/perf-results/rust-dpdk.json
EXIT_CODE=0

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[Perf] Stage: Benchmark (3/4)

Running tokio-dpdk benchmark...
Packet sizes: 64,512,1400,8500 | Duration: 30s/step | Target PPS: 70000,140000,350000,700000

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[Perf] Benchmark Diag: tokio-dpdk preflight

TRex API OK: 2 ports
  Port 0: 02:a4:b9:95:1d:a3
  Port 1: 02:40:7d:95:6e:21
PREFLIGHT_OK

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[Perf] Benchmark Diag: tokio-dpdk result

SSM exit: 0

Output (last 30 lines) 
Duration per step: 30s
Source MAC: 02:a4:b9:95:1d:a3

--- Packet size: 64B ---
  Target: 70,000 pps ... TX: 70,000 pps, RX: 69,000 pps, Drop: 1.4286%, Lat avg: 0.0 us
  Target: 140,000 pps ... TX: 140,000 pps, RX: 139,000 pps, Drop: 0.7143%, Lat avg: 0.0 us
  Target: 350,000 pps ... TX: 350,000 pps, RX: 321,480 pps, Drop: 8.1485%, Lat avg: 0.0 us
  Target: 700,000 pps ... TX: 700,000 pps, RX: 323,307 pps, Drop: 53.8133%, Lat avg: 0.0 us

--- Packet size: 512B ---
  Target: 70,000 pps ... TX: 70,000 pps, RX: 69,000 pps, Drop: 1.4286%, Lat avg: 0.0 us
  Target: 140,000 pps ... TX: 140,000 pps, RX: 139,000 pps, Drop: 0.7143%, Lat avg: 0.0 us
  Target: 350,000 pps ... TX: 350,000 pps, RX: 234,366 pps, Drop: 33.0384%, Lat avg: 0.0 us
  Target: 700,000 pps ... TX: 700,000 pps, RX: 233,386 pps, Drop: 66.6591%, Lat avg: 0.0 us

--- Packet size: 1400B ---
  Target: 70,000 pps ... TX: 70,000 pps, RX: 69,000 pps, Drop: 1.4286%, Lat avg: 0.0 us
  Target: 140,000 pps ... TX: 140,000 pps, RX: 138,995 pps, Drop: 0.7179%, Lat avg: 0.0 us
  Target: 350,000 pps ... TX: 350,000 pps, RX: 149,622 pps, Drop: 57.2509%, Lat avg: 0.0 us
  Target: 700,000 pps ... TX: 476,697 pps, RX: 158,882 pps, Drop: 66.6702%, Lat avg: 0.0 us

--- Packet size: 8500B ---
  (jumbo: capping at 418,133 pps for 30.0 Gbps limit)
  Target: 70,000 pps ... TX: 70,000 pps, RX: 55,648 pps, Drop: 20.5036%, Lat avg: 0.0 us
  Target: 140,000 pps ... TX: 78,354 pps, RX: 58,710 pps, Drop: 25.0707%, Lat avg: 0.0 us
  Target: 350,000 pps ... TX: 78,349 pps, RX: 59,519 pps, Drop: 24.0332%, Lat avg: 0.0 us
  Target: 700,000 pps ... SKIPPED (exceeds 30.0 Gbps cap)

Results written to /tmp/perf-results/tokio-dpdk.json
EXIT_CODE=0

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[Perf] Stage: Benchmark (4/4)

Running native-dpdk benchmark...
Packet sizes: 64,512,1400,8500 | Duration: 30s/step | Target PPS: 70000,140000,350000,700000

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[Perf] Benchmark Diag: native-dpdk preflight

TRex API OK: 2 ports
  Port 0: 02:a4:b9:95:1d:a3
  Port 1: 02:40:7d:95:6e:21
PREFLIGHT_OK

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[Perf] Benchmark Diag: native-dpdk result

SSM exit: 0

Output (last 30 lines) 
Duration per step: 30s
Source MAC: 02:a4:b9:95:1d:a3

--- Packet size: 64B ---
  Target: 70,000 pps ... TX: 70,000 pps, RX: 70,000 pps, Drop: 0.0%, Lat avg: 111.0 us
  Target: 140,000 pps ... TX: 140,000 pps, RX: 140,000 pps, Drop: 0.0%, Lat avg: 116.0 us
  Target: 350,000 pps ... TX: 350,000 pps, RX: 349,994 pps, Drop: 0.0016%, Lat avg: 134.0 us
  Target: 700,000 pps ... TX: 700,000 pps, RX: 699,750 pps, Drop: 0.0357%, Lat avg: 175.0 us

--- Packet size: 512B ---
  Target: 70,000 pps ... TX: 70,000 pps, RX: 70,000 pps, Drop: 0.0%, Lat avg: 120.0 us
  Target: 140,000 pps ... TX: 140,000 pps, RX: 140,000 pps, Drop: 0.0%, Lat avg: 140.0 us
  Target: 350,000 pps ... TX: 350,000 pps, RX: 350,000 pps, Drop: 0.0%, Lat avg: 148.0 us
  Target: 700,000 pps ... TX: 700,000 pps, RX: 698,838 pps, Drop: 0.166%, Lat avg: 188.0 us

--- Packet size: 1400B ---
  Target: 70,000 pps ... TX: 70,000 pps, RX: 70,000 pps, Drop: 0.0%, Lat avg: 120.0 us
  Target: 140,000 pps ... TX: 140,000 pps, RX: 140,000 pps, Drop: 0.0%, Lat avg: 144.0 us
  Target: 350,000 pps ... TX: 350,000 pps, RX: 350,000 pps, Drop: 0.0%, Lat avg: 129.0 us
  Target: 700,000 pps ... TX: 476,254 pps, RX: 475,859 pps, Drop: 0.0828%, Lat avg: 2692.0 us

--- Packet size: 8500B ---
  (jumbo: capping at 418,133 pps for 30.0 Gbps limit)
  Target: 70,000 pps ... TX: 70,000 pps, RX: 70,000 pps, Drop: 0.0%, Lat avg: 123.0 us
  Target: 140,000 pps ... TX: 78,358 pps, RX: 74,537 pps, Drop: 4.8765%, Lat avg: 14084.0 us
  Target: 350,000 pps ... TX: 78,359 pps, RX: 75,958 pps, Drop: 3.0639%, Lat avg: 14250.0 us
  Target: 700,000 pps ... SKIPPED (exceeds 30.0 Gbps cap)

Results written to /tmp/perf-results/native-dpdk.json
EXIT_CODE=0

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[Perf] Diag: testpmd log

testpmd output (last 30 lines) 
=== testpmd stats (last 30 lines) ===
  ############################################################################
Telling cores to stop...
Waiting for lcores to finish...

  ---------------------- Forward statistics for port 0  ----------------------
  RX-packets: 113489140      RX-dropped: 0             RX-total: 113489140
  RX-error: 403653
  RX-nombufs: 0             
  TX-packets: 113489140      TX-dropped: 0             TX-total: 113489140
  ----------------------------------------------------------------------------

  +++++++++++++++ Accumulated forward statistics for all ports+++++++++++++++
  RX-packets: 113489140      RX-dropped: 0             RX-total: 113489140
  TX-packets: 113489140      TX-dropped: 0             TX-total: 113489140
  ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

Done.

Stopping port 0...
Stopping ports...
Done

Shutting down port 0...
ena_rx_queue_release(): Rx queue 0:0 released
ena_tx_queue_release(): Tx queue 0:0 released
Closing ports...
Port 0 is closed
Done

Bye...
=== ENA port stats ===
N/A (vfio-pci)

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[Perf] Stage: Results

[14:30:02] INFO Generating markdown summary...

Performance Test Results — unknown

Commit: c6100c76
Timestamp: 2026-06-06T14:30:02.381258+00:00

64B packets

Config Target PPS TX pps RX pps Drop % NIC imissed NIC ierrors NIC nombuf App Drops Lat Avg (us) Lat Max (us) TX Mbps RX Mbps
native-dpdk 70,000 70,000 70,000 0.00% — — — — 111.0 3508.0 35.8 35.8
native-dpdk 140,000 140,000 140,000 0.00% — — — — 116.0 323.0 71.7 71.7
native-dpdk 350,000 350,000 349,994 0.00% — — — — 134.0 2493.0 179.2 179.2
native-dpdk 700,000 700,000 699,750 0.04% — — — — 175.0 2092.0 358.4 358.3
rust-dpdk 70,000 70,000 69,000 1.43% 0 39,413 0 0 0.0 0.0 35.8 35.3
rust-dpdk 140,000 140,000 138,959 0.74% 0 35,331 0 0 224.0 0.0 71.7 71.2
rust-dpdk 350,000 350,000 348,784 0.35% 0 31,878 0 0 0.0 0.0 179.2 178.6
rust-dpdk 700,000 700,000 698,349 0.24% 0 41,883 0 0 0.0 0.0 358.4 357.6
tokio-dpdk 70,000 70,000 69,000 1.43% 0 38,961 0 0 0.0 0.0 35.8 38.6
tokio-dpdk 140,000 140,000 139,000 0.71% 0 32,818 0 0 0.0 0.0 71.7 77.8
tokio-dpdk 350,000 350,000 321,480 8.15% 0 22,884 0 0 0.0 0.0 179.2 180.0
tokio-dpdk 700,000 700,000 323,307 53.81% 0 24,530 0 0 0.0 0.0 358.4 181.1
plain-rust 70,000 70,000 69,000 1.43% — — — — 0.0 0.0 35.8 35.3
plain-rust 140,000 140,000 138,998 0.72% — — — — 0.0 0.0 71.7 71.2
plain-rust 350,000 350,000 322,066 7.98% — — — — 0.0 0.0 179.2 164.9
plain-rust 700,000 700,000 501,484 28.36% — — — — 433.0 0.0 358.4 256.8

512B packets

Config Target PPS TX pps RX pps Drop % NIC imissed NIC ierrors NIC nombuf App Drops Lat Avg (us) Lat Max (us) TX Mbps RX Mbps
native-dpdk 70,000 70,000 70,000 0.00% — — — — 120.0 3595.0 286.7 286.7
native-dpdk 140,000 140,000 140,000 0.00% — — — — 140.0 1833.0 573.4 573.4
native-dpdk 350,000 350,000 350,000 0.00% — — — — 148.0 1166.0 1433.6 1433.6
native-dpdk 700,000 700,000 698,838 0.17% — — — — 188.0 2417.0 2867.2 2862.4
rust-dpdk 70,000 70,000 69,000 1.43% 0 33,214 0 0 0.0 0.0 286.7 282.6
rust-dpdk 140,000 140,000 139,000 0.71% 0 41,922 0 0 0.0 0.0 573.4 569.3
rust-dpdk 350,000 350,000 348,892 0.32% 0 35,108 0 0 180.0 0.0 1433.6 1429.1
rust-dpdk 700,000 700,000 696,932 0.44% 0 31,826 0 0 0.0 0.0 2867.2 2854.6
tokio-dpdk 70,000 70,000 69,000 1.43% 0 32,742 0 0 0.0 0.0 286.7 285.9
tokio-dpdk 140,000 140,000 139,000 0.71% 0 36,100 0 0 0.0 0.0 573.4 576.0
tokio-dpdk 350,000 350,000 234,366 33.04% 0 11,939 0 0 0.0 0.0 1433.6 971.2
tokio-dpdk 700,000 700,000 233,386 66.66% 0 10,382 0 0 0.0 0.0 2867.2 967.1
plain-rust 70,000 70,000 68,991 1.44% — — — — 220.0 0.0 286.7 282.6
plain-rust 140,000 140,000 138,980 0.73% — — — — 308.0 0.0 573.4 569.3
plain-rust 350,000 350,000 309,241 11.65% — — — — 0.0 0.0 1433.6 1266.7
plain-rust 700,000 700,000 468,547 33.06% — — — — 0.0 0.0 2867.2 1919.2

1400B packets

Config Target PPS TX pps RX pps Drop % NIC imissed NIC ierrors NIC nombuf App Drops Lat Avg (us) Lat Max (us) TX Mbps RX Mbps
native-dpdk 70,000 70,000 70,000 0.00% — — — — 120.0 3101.0 784.0 784.0
native-dpdk 140,000 140,000 140,000 0.00% — — — — 144.0 1273.0 1568.0 1568.0
native-dpdk 350,000 350,000 350,000 0.00% — — — — 129.0 677.0 3920.0 3920.0
native-dpdk 700,000 476,254 475,859 0.08% — — — — 2692.0 4106.0 5334.0 5329.6
rust-dpdk 70,000 70,000 68,994 1.44% 0 41,862 0 0 0.0 0.0 784.0 772.7
rust-dpdk 140,000 140,000 138,952 0.75% 0 32,952 0 0 0.0 0.0 1568.0 1556.3
rust-dpdk 350,000 350,000 348,989 0.29% 0 38,653 0 0 211.0 0.0 3920.0 3908.7
rust-dpdk 700,000 476,668 475,058 0.34% 0 25,108 0 0 0.0 0.0 5338.7 5320.6
tokio-dpdk 70,000 70,000 69,000 1.43% 0 38,151 0 0 0.0 0.0 784.0 776.1
tokio-dpdk 140,000 140,000 138,995 0.72% 0 30,551 0 0 0.0 0.0 1568.0 1563.4
tokio-dpdk 350,000 350,000 149,622 57.25% 0 11,249 0 0 0.0 0.0 3920.0 1683.0
tokio-dpdk 700,000 476,697 158,882 66.67% 0 10,089 0 0 0.0 0.0 5339.0 1787.1
plain-rust 70,000 70,000 69,000 1.43% — — — — 0.0 0.0 784.0 772.8
plain-rust 140,000 140,000 138,974 0.73% — — — — 257.0 0.0 1568.0 1556.5
plain-rust 350,000 350,000 305,528 12.71% — — — — 0.0 0.0 3920.0 3421.9
plain-rust 700,000 476,638 393,212 17.50% — — — — 0.0 0.0 5338.3 4404.0

8500B packets

Config Target PPS TX pps RX pps Drop % NIC imissed NIC ierrors NIC nombuf App Drops Lat Avg (us) Lat Max (us) TX Mbps RX Mbps
native-dpdk 70,000 70,000 70,000 0.00% — — — — 123.0 1064.0 4760.0 4760.0
native-dpdk 140,000 78,358 74,537 4.88% — — — — 14084.0 15524.0 5328.4 5068.5
native-dpdk 350,000 78,359 75,958 3.06% — — — — 14250.0 16941.0 5328.4 5165.1
rust-dpdk 70,000 70,000 69,000 1.43% 0 32,289 0 0 596.0 0.0 4760.0 4692.0
rust-dpdk 140,000 78,330 74,422 4.99% 0 23,220 0 0 0.0 0.0 5326.5 5060.7
rust-dpdk 350,000 78,354 77,866 0.62% 0 7,331 0 0 0.0 0.0 5328.1 5294.9
tokio-dpdk 70,000 70,000 55,648 20.50% 0 24,266 0 0 0.0 0.0 4760.0 3786.7
tokio-dpdk 140,000 78,354 58,710 25.07% 0 18,195 0 0 0.0 0.0 5328.1 3995.1
tokio-dpdk 350,000 78,349 59,519 24.03% 0 5,791 0 0 0.0 0.0 5327.7 4050.2
plain-rust 70,000 70,000 37,631 46.24% — — — — 0.0 0.0 4760.0 2558.9
plain-rust 140,000 78,300 77,160 1.46% — — — — 13879.0 0.0 5324.4 5246.9
plain-rust 350,000 78,351 77,053 1.66% — — — — 0.0 0.0 5327.8 5239.6

NIC Drops Instrumentation Self-Check

Compares (NIC-FINAL − NIC-BASELINE) one-shot snapshots against the sum of per-tick [PERF] deltas over the reporter's lifetime. These MUST match exactly — a mismatch means per-tick delta bookkeeping is losing data.

Config Status imissed (expected / actual / Δ) ierrors (expected / actual / Δ) rx_nombuf (expected / actual / Δ)
native-dpdk no instrumentation — — —
rust-dpdk OK 0 / 0 / 0 403,520 / 403,520 / 0 0 / 0 / 0
tokio-dpdk OK 0 / 0 / 0 288,296 / 288,296 / 0 0 / 0 / 0
plain-rust no instrumentation — — —

expected = FINAL − BASELINE (raw NIC counter delta across reporter lifetime). actual = sum of per-tick [PERF] delta fields. Any Δ ≠ 0 is a bug in the tick loop's bookkeeping.

plain-rust Kernel NIC Drops (ethtool -S delta)

ethtool snapshots not available — baseline or final file missing in $LOGS_DIR/dut-plain-rust-ethtool-*.txt.

Full results artifact

Agent Router
docs: add perf Run #34 and mark ROADMAP item #7 complete
4e7dc31 
Performance results from GH Actions run 27063712285. No regressions:
- native-dpdk: 0.04% drop at 700K/64B (Run #33: 0.13%)
- rust-dpdk: 0.2% drop at 700K/64B (Run #33: 0.4%)
- tokio-dpdk: caps ~323K PPS (Run #33: ~326K)

All within normal variance. Change is documentation-only.
@gspivey
gspivey merged commit 00b6069 into development Jun 6, 2026
5 checks passed
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Synthetic Performance Results — Graviton (run)

Commit: 73d542ff

✅ synthetic UDP socket bound to 10.0.0.1:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to 10.0.0.1:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to [2001:db8::1]:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to [2001:db8::1]:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to 10.0.0.1:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to 10.0.0.1:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to [2001:db8::1]:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to [2001:db8::1]:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to 10.0.0.1:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to 10.0.0.1:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to [2001:db8::1]:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to [2001:db8::1]:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to 10.0.0.1:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to 10.0.0.1:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to [2001:db8::1]:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to [2001:db8::1]:9000 (MAC: 02:00:00:00:00:01)

Synthetic UDP Performance Results

Measures framework overhead: sync dpdk_udp::UdpSocket vs async (std::sync::Mutex + try_recv_from).

IPv4 Baseline

Test Payload Sync PPS Async PPS Ratio (sync/async) Async ns/op
TX send_to 64B 11.7M 11.3M 1.0x 88
RX recv_from 64B 3.5M 4.8M 0.7x 208
TX send_to 1400B 1.8M 1.8M 1.0x 555
RX recv_from 1400B 1.1M 1.2M 0.9x 841

IPv6

Test Payload Sync PPS Async PPS Ratio (sync/async) Async ns/op
TX send_to (IPv6) 64B 9.0M 8.7M 1.0x 115
RX recv_from (IPv6) 64B 4.1M 5.6M 0.7x 178
TX send_to (IPv6) 1400B 2.9M 2.9M 1.0x 347
RX recv_from (IPv6) 1400B 1.1M 1.2M 0.9x 826

IPv6 vs IPv4 Comparison (sync path)

Test Payload IPv4 PPS IPv6 PPS IPv4/IPv6 Ratio
TX send_to (sync) 64B 11.7M 9.0M 1.30x
RX recv_from (sync) 64B 3.5M 4.1M 0.84x
TX send_to (sync) 1400B 1.8M 2.9M 0.63x
RX recv_from (sync) 1400B 1.1M 1.1M 0.98x

IPv4 avg sync/async ratio: 0.9x, worst: 1.0x | IPv6 vs IPv4 worst ratio: 1.30x (OK)

OK: IPv6 is 29.8% slower than IPv4 — within acceptable threshold (<50%). Expected due to larger headers (40B vs 20B) and mandatory UDP checksum.

Good: Async wrapper is within 1.0x of sync — minimal framework overhead.

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Synthetic Performance Results (run)

Commit: 73d542ff

✅ synthetic UDP socket bound to 10.0.0.1:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to 10.0.0.1:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to [2001:db8::1]:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to [2001:db8::1]:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to 10.0.0.1:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to 10.0.0.1:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to [2001:db8::1]:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to [2001:db8::1]:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to 10.0.0.1:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to 10.0.0.1:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to [2001:db8::1]:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to [2001:db8::1]:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to 10.0.0.1:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to 10.0.0.1:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to [2001:db8::1]:9000 (MAC: 02:00:00:00:00:01)
✅ synthetic UDP socket bound to [2001:db8::1]:9000 (MAC: 02:00:00:00:00:01)

Synthetic UDP Performance Results

Measures framework overhead: sync dpdk_udp::UdpSocket vs async (std::sync::Mutex + try_recv_from).

IPv4 Baseline

Test Payload Sync PPS Async PPS Ratio (sync/async) Async ns/op
TX send_to 64B 11.4M 11.0M 1.0x 91
RX recv_from 64B 3.3M 4.4M 0.8x 229
TX send_to 1400B 1.6M 1.6M 1.0x 613
RX recv_from 1400B 1.0M 1.0M 1.0x 978

IPv6

Test Payload Sync PPS Async PPS Ratio (sync/async) Async ns/op
TX send_to (IPv6) 64B 8.6M 8.4M 1.0x 118
RX recv_from (IPv6) 64B 4.0M 5.5M 0.7x 182
TX send_to (IPv6) 1400B 2.7M 2.6M 1.0x 380
RX recv_from (IPv6) 1400B 1.0M 1.1M 0.9x 908

IPv6 vs IPv4 Comparison (sync path)

Test Payload IPv4 PPS IPv6 PPS IPv4/IPv6 Ratio
TX send_to (sync) 64B 11.4M 8.6M 1.32x
RX recv_from (sync) 64B 3.3M 4.0M 0.84x
TX send_to (sync) 1400B 1.6M 2.7M 0.61x
RX recv_from (sync) 1400B 1.0M 1.0M 1.00x

IPv4 avg sync/async ratio: 0.9x, worst: 1.0x | IPv6 vs IPv4 worst ratio: 1.32x (OK)

OK: IPv6 is 31.7% slower than IPv4 — within acceptable threshold (<50%). Expected due to larger headers (40B vs 20B) and mandatory UDP checksum.

Good: Async wrapper is within 1.0x of sync — minimal framework overhead.

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[CI] Stage: Deploy

Infrastructure ready.

  • Sender: i-07295af8c7ede4bdd (DPDK ENI: 10.0.1.74)
  • Receiver: i-01e7c97f124c06863 (DPDK ENI: 10.0.1.242)
  • Both instances SSM-ready.

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[CI] Stage: Deploy

Infrastructure ready.

  • Sender: i-032cadf5ea1b44728 (DPDK ENI: 10.0.1.6)
  • Receiver: i-0e8b267c9530f2413 (DPDK ENI: 10.0.1.92)
  • Both instances SSM-ready.

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[CI] Stage: Summary

All tests PASSED.

ARP seeding: kernel /proc/net/arp (automatic)

  • tier1-dpdk-echo: 6 tests, 0 failures
  • tier2-kernel-interop: 4 tests, 0 failures
  • tier3-iperf-interop: 1 tests, 0 failures
  • tier3-iperf-interop: 1 tests, 0 failures

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✅ Integration Tests Passed — Graviton (run)

Branch: 71/merge | Commit: 73d542ff

Test Results

  • tier1-dpdk-echo.xml: 6 tests, 0 failures
  • tier2-kernel-interop.xml: 4 tests, 0 failures
  • tier3-iperf-sends.xml: 1 tests, 0 failures
  • tier3-our-app-sends.xml: 1 tests, 0 failures

Application Logs (last 20 lines)

receiver-echo-server.log

EAL: Detected CPU lcores: 2
EAL: Detected NUMA nodes: 1
EAL: Detected shared linkage of DPDK
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: VFIO support initialized
EAL: Using IOMMU type 8 (No-IOMMU)
EAL: Probe PCI driver: net_ena (1d0f:ec20) device: 0000:00:06.0 (socket -1)
TELEMETRY: No legacy callbacks, legacy socket not created
Warning: Some RX offloads not supported by device (flags: 0x1)
Warning: Some TX offloads not supported by device (flags: 0x1)
✅ DPDK UDP socket bound to 10.0.1.92:9000 (MAC: 02:ae:ba:9b:40:ef)
echo listening on 10.0.1.92:9000 (MTU=9001, max_udp_payload=8973)
Shutting down gracefully...

sender-echo-server.log

EAL: Detected CPU lcores: 2
EAL: Detected NUMA nodes: 1
EAL: Detected shared linkage of DPDK
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: VFIO support initialized
EAL: Using IOMMU type 8 (No-IOMMU)
EAL: Probe PCI driver: net_ena (1d0f:ec20) device: 0000:00:06.0 (socket -1)
TELEMETRY: No legacy callbacks, legacy socket not created
Warning: Some RX offloads not supported by device (flags: 0x1)
Warning: Some TX offloads not supported by device (flags: 0x1)
✅ DPDK UDP socket bound to 10.0.1.6:9000 (MAC: 02:a4:0c:f2:13:b1)
echo listening on 10.0.1.6:9000 (MTU=9001, max_udp_payload=8973)
Shutting down gracefully...

sender-test-client.log

EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: VFIO support initialized
TELEMETRY: No legacy callbacks, legacy socket not created
DPDK bind failed (Port init failed: Invalid port ID: 0), falling back to tokio
Backend: tokio
Sending packets...
Sent 12 bytes: 'arp-probe #1'
Received 12 bytes from 10.0.1.92:9000: 'arp-probe #1'
Test complete
[2026-06-06T14:47:30Z] INFO: ARP resolution succeeded (got response from peer)
[2026-06-06T14:47:30Z] INFO: Test: udp_send_receive
[2026-06-06T14:47:31Z] INFO: UDP send/receive succeeded
[2026-06-06T14:47:31Z] INFO: Test: echo_roundtrip
[2026-06-06T14:47:32Z] INFO: Echo roundtrip succeeded: 5/5 responses received
[2026-06-06T14:47:32Z] INFO: Test: payload_integrity
[2026-06-06T14:47:32Z] INFO: Response received, checking payload match...
[2026-06-06T14:47:32Z] INFO: Payload integrity verified (found in response)
[2026-06-06T14:47:32Z] INFO: JUnit XML written to: /tmp/test-results/tier2-kernel-interop.xml
[2026-06-06T14:47:32Z] INFO: Tier 2 sender tests complete. Results: /tmp/test-results/tier2-kernel-interop.xml

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[CI] Stage: Summary

All tests PASSED.

ARP seeding: kernel /proc/net/arp (automatic)

  • tier1-dpdk-echo: 6 tests, 0 failures
  • tier2-kernel-interop: 4 tests, 0 failures
  • tier3-iperf-interop: 1 tests, 0 failures
  • tier3-iperf-interop: 1 tests, 0 failures

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✅ Integration Tests Passed (Run 27064964962)

Branch: 71/merge | Commit: 73d542ff

Test Results

  • tier1-dpdk-echo.xml: 6 tests, 0 failures, skipped
  • tier2-kernel-interop.xml: 4 tests, 0 failures, skipped
  • tier3-iperf-sends.xml: 1 tests, 0 failures, skipped
  • tier3-our-app-sends.xml: 1 tests, 0 failures, skipped

Application Logs (last 20 lines)

receiver-echo-server.log

EAL: Detected CPU lcores: 2
EAL: Detected NUMA nodes: 1
EAL: Detected shared linkage of DPDK
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: VFIO support initialized
EAL: Using IOMMU type 8 (No-IOMMU)
EAL: Probe PCI driver: net_ena (1d0f:ec20) device: 0000:00:06.0 (socket -1)
TELEMETRY: No legacy callbacks, legacy socket not created
Warning: Some RX offloads not supported by device (flags: 0x1)
Warning: Some TX offloads not supported by device (flags: 0x1)
✅ DPDK UDP socket bound to 10.0.1.242:9000 (MAC: 02:f3:79:2c:4d:d3)
echo listening on 10.0.1.242:9000 (MTU=9001, max_udp_payload=8973)
Shutting down gracefully...

sender-echo-server.log

EAL: Detected CPU lcores: 2
EAL: Detected NUMA nodes: 1
EAL: Detected shared linkage of DPDK
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: VFIO support initialized
EAL: Using IOMMU type 8 (No-IOMMU)
EAL: Probe PCI driver: net_ena (1d0f:ec20) device: 0000:00:06.0 (socket -1)
TELEMETRY: No legacy callbacks, legacy socket not created
Warning: Some RX offloads not supported by device (flags: 0x1)
Warning: Some TX offloads not supported by device (flags: 0x1)
✅ DPDK UDP socket bound to 10.0.1.74:9000 (MAC: 02:ad:9f:62:5e:57)
echo listening on 10.0.1.74:9000 (MTU=9001, max_udp_payload=8973)
Shutting down gracefully...

sender-test-client.log

EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: VFIO support initialized
TELEMETRY: No legacy callbacks, legacy socket not created
DPDK bind failed (Port init failed: Invalid port ID: 0), falling back to tokio
Backend: tokio
Sending packets...
Sent 12 bytes: 'arp-probe #1'
Received 12 bytes from 10.0.1.242:9000: 'arp-probe #1'
Test complete
[2026-06-06T14:49:25Z] INFO: ARP resolution succeeded (got response from peer)
[2026-06-06T14:49:25Z] INFO: Test: udp_send_receive
[2026-06-06T14:49:26Z] INFO: UDP send/receive succeeded
[2026-06-06T14:49:26Z] INFO: Test: echo_roundtrip
[2026-06-06T14:49:27Z] INFO: Echo roundtrip succeeded: 5/5 responses received
[2026-06-06T14:49:27Z] INFO: Test: payload_integrity
[2026-06-06T14:49:27Z] INFO: Response received, checking payload match...
[2026-06-06T14:49:27Z] INFO: Payload integrity verified (found in response)
[2026-06-06T14:49:27Z] INFO: JUnit XML written to: /tmp/test-results/tier2-kernel-interop.xml
[2026-06-06T14:49:27Z] INFO: Tier 2 sender tests complete. Results: /tmp/test-results/tier2-kernel-interop.xml

receiver-test-client-iperf.log

[2026-06-06T14:57:07Z] INFO: iperf-sends: sent 10 packets, received 10 responses
[2026-06-06T14:57:07Z] INFO: iperf-sends: PASS (sent >= 5 packets)
[2026-06-06T14:57:07Z] INFO: JUnit XML written to: /tmp/test-results/tier3-iperf-sends.xml
[2026-06-06T14:57:07Z] INFO: iperf-sends test complete

sender-test-client-iperf.log

Received 30 bytes from 10.0.1.242:9000: 'dpdk-to-kernel-test-payload #3'
Sent 30 bytes: 'dpdk-to-kernel-test-payload #4'
Received 30 bytes from 10.0.1.242:9000: 'dpdk-to-kernel-test-payload #4'
Sent 30 bytes: 'dpdk-to-kernel-test-payload #5'
Received 30 bytes from 10.0.1.242:9000: 'dpdk-to-kernel-test-payload #5'
Sent 30 bytes: 'dpdk-to-kernel-test-payload #6'
Received 30 bytes from 10.0.1.242:9000: 'dpdk-to-kernel-test-payload #6'
Sent 30 bytes: 'dpdk-to-kernel-test-payload #7'
Received 30 bytes from 10.0.1.242:9000: 'dpdk-to-kernel-test-payload #7'
Sent 30 bytes: 'dpdk-to-kernel-test-payload #8'
Received 30 bytes from 10.0.1.242:9000: 'dpdk-to-kernel-test-payload #8'
Sent 30 bytes: 'dpdk-to-kernel-test-payload #9'
Received 30 bytes from 10.0.1.242:9000: 'dpdk-to-kernel-test-payload #9'
Sent 31 bytes: 'dpdk-to-kernel-test-payload #10'
Received 31 bytes from 10.0.1.242:9000: 'dpdk-to-kernel-test-payload #10'
Test complete
[2026-06-06T14:56:06Z] INFO: our-app-sends: sent 10 packets, received 10 responses
[2026-06-06T14:56:06Z] INFO: our-app-sends: PASS (sent >= 5 packets)
[2026-06-06T14:56:06Z] INFO: JUnit XML written to: /tmp/test-results/tier3-our-app-sends.xml
[2026-06-06T14:56:06Z] INFO: our-app-sends test complete
Full Application Logs (last 200 lines each)

receiver-echo-server.log

EAL: Detected CPU lcores: 2
EAL: Detected NUMA nodes: 1
EAL: Detected shared linkage of DPDK
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: VFIO support initialized
EAL: Using IOMMU type 8 (No-IOMMU)
EAL: Probe PCI driver: net_ena (1d0f:ec20) device: 0000:00:06.0 (socket -1)
TELEMETRY: No legacy callbacks, legacy socket not created
Warning: Some RX offloads not supported by device (flags: 0x1)
Warning: Some TX offloads not supported by device (flags: 0x1)
✅ DPDK UDP socket bound to 10.0.1.242:9000 (MAC: 02:f3:79:2c:4d:d3)
echo listening on 10.0.1.242:9000 (MTU=9001, max_udp_payload=8973)
Shutting down gracefully...

sender-echo-server.log

EAL: Detected CPU lcores: 2
EAL: Detected NUMA nodes: 1
EAL: Detected shared linkage of DPDK
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: VFIO support initialized
EAL: Using IOMMU type 8 (No-IOMMU)
EAL: Probe PCI driver: net_ena (1d0f:ec20) device: 0000:00:06.0 (socket -1)
TELEMETRY: No legacy callbacks, legacy socket not created
Warning: Some RX offloads not supported by device (flags: 0x1)
Warning: Some TX offloads not supported by device (flags: 0x1)
✅ DPDK UDP socket bound to 10.0.1.74:9000 (MAC: 02:ad:9f:62:5e:57)
echo listening on 10.0.1.74:9000 (MTU=9001, max_udp_payload=8973)
Shutting down gracefully...

sender-test-client.log

[2026-06-06T14:42:04Z] INFO: Test: arp_resolution
UDP Test Client
Target: 10.0.1.242:9000
Bind address: 10.0.1.74:0
Message: 'arp-probe'
Count: 1
EAL: Detected CPU lcores: 2
EAL: Detected NUMA nodes: 1
EAL: Detected shared linkage of DPDK
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: VFIO support initialized
EAL: Using IOMMU type 8 (No-IOMMU)
EAL: Probe PCI driver: net_ena (1d0f:ec20) device: 0000:00:06.0 (socket -1)
TELEMETRY: No legacy callbacks, legacy socket not created
Warning: Some RX offloads not supported by device (flags: 0x1)
Warning: Some TX offloads not supported by device (flags: 0x1)
✅ DPDK UDP socket bound to 10.0.1.74:32768 (MAC: 02:ad:9f:62:5e:57)
Backend: dpdk
Sending packets...
Sent 12 bytes: 'arp-probe #1'
Received 12 bytes from 10.0.1.242:9000: 'arp-probe #1'
Test complete
[2026-06-06T14:42:05Z] INFO: ARP resolution succeeded (got response from peer)
[2026-06-06T14:42:05Z] INFO: Test: udp_send_receive
[2026-06-06T14:42:07Z] INFO: UDP send/receive succeeded
[2026-06-06T14:42:07Z] INFO: Test: echo_roundtrip
[2026-06-06T14:42:09Z] INFO: Echo roundtrip succeeded: 5/5 responses received
[2026-06-06T14:42:09Z] INFO: Test: payload_integrity
[2026-06-06T14:42:09Z] INFO: Response received, checking payload match...
[2026-06-06T14:42:09Z] INFO: Payload integrity verified (found in response)
[2026-06-06T14:42:09Z] INFO: Test: jumbo_diagnostics
[2026-06-06T14:42:09Z] INFO: === JUMBO FRAME DIAGNOSTICS ===
[2026-06-06T14:42:09Z] INFO: Interface MTU:
  1500
  9001
  65536
[2026-06-06T14:42:09Z] INFO:   docker0: MTU=1500
[2026-06-06T14:42:09Z] INFO:   ens5: MTU=9001
[2026-06-06T14:42:09Z] INFO:   lo: MTU=65536
[2026-06-06T14:42:09Z] INFO: Routing table MTU column:
Iface	Destination	Gateway 	Flags	RefCnt	Use	Metric	Mask		MTU	Window	IRTT                                                       
ens5	00000000	0101000A	0003	0	0	512	00000000	0	0	0                                                                             
ens5	0200000A	0101000A	0007	0	0	512	FFFFFFFF	0	0	0                                                                             
ens5	0001000A	00000000	0001	0	0	512	00FFFFFF	0	0	0                                                                             
ens5	0101000A	00000000	0005	0	0	512	FFFFFFFF	0	0	0                                                                             
[2026-06-06T14:42:09Z] INFO: DPDK port config (from echo server log):
[2026-06-06T14:42:09Z] INFO:   (no MTU info in echo log)
[2026-06-06T14:42:09Z] INFO: === END JUMBO DIAGNOSTICS ===
[2026-06-06T14:42:09Z] INFO: Test: jumbo_echo_8000
[2026-06-06T14:42:11Z] INFO: Jumbo output: UDP Test Client
Target: 10.0.1.242:9000
Bind address: 10.0.1.74:0
Payload size: 8000 bytes
Count: 3
EAL: Detected CPU lcores: 2
EAL: Detected NUMA nodes: 1
EAL: Detected shared linkage of DPDK
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: VFIO support initialized
EAL: Using IOMMU type 8 (No-IOMMU)
EAL: Probe PCI driver: net_ena (1d0f:ec20) device: 0000:00:06.0 (socket -1)
TELEMETRY: No legacy callbacks, legacy socket not created
Warning: Some RX offloads not supported by device (flags: 0x1)
Warning: Some TX offloads not supported by device (flags: 0x1)
✅ DPDK UDP socket bound to 10.0.1.74:32768 (MAC: 02:ad:9f:62:5e:57)
Backend: dpdk
Sending packets...
Sent 8000 bytes (binary payload)
Received 8000 bytes from 10.0.1.242:9000 (expected 8000, OK)
Sent 8000 bytes (binary payload)
Received 8000 bytes from 10.0.1.242:9000 (expected 8000, OK)
Sent 8000 bytes (binary payload)
Received 8000 bytes from 10.0.1.242:9000 (expected 8000, OK)
Test complete
[2026-06-06T14:42:11Z] INFO: Jumbo frame echo succeeded: 3/3 responses with correct size
[2026-06-06T14:42:11Z] INFO: JUnit XML written to: /tmp/test-results/tier1-dpdk-echo.xml
[2026-06-06T14:42:11Z] INFO: Tier 1 sender tests complete. Results: /tmp/test-results/tier1-dpdk-echo.xml
[2026-06-06T14:49:25Z] INFO: Test: arp_resolution
UDP Test Client
Target: 10.0.1.242:9000
Bind address: 0.0.0.0:0
Message: 'arp-probe'
Count: 1
EAL: Detected CPU lcores: 2
EAL: Detected NUMA nodes: 1
EAL: Detected shared linkage of DPDK
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: VFIO support initialized
TELEMETRY: No legacy callbacks, legacy socket not created
DPDK bind failed (Port init failed: Invalid port ID: 0), falling back to tokio
Backend: tokio
Sending packets...
Sent 12 bytes: 'arp-probe #1'
Received 12 bytes from 10.0.1.242:9000: 'arp-probe #1'
Test complete
[2026-06-06T14:49:25Z] INFO: ARP resolution succeeded (got response from peer)
[2026-06-06T14:49:25Z] INFO: Test: udp_send_receive
[2026-06-06T14:49:26Z] INFO: UDP send/receive succeeded
[2026-06-06T14:49:26Z] INFO: Test: echo_roundtrip
[2026-06-06T14:49:27Z] INFO: Echo roundtrip succeeded: 5/5 responses received
[2026-06-06T14:49:27Z] INFO: Test: payload_integrity
[2026-06-06T14:49:27Z] INFO: Response received, checking payload match...
[2026-06-06T14:49:27Z] INFO: Payload integrity verified (found in response)
[2026-06-06T14:49:27Z] INFO: JUnit XML written to: /tmp/test-results/tier2-kernel-interop.xml
[2026-06-06T14:49:27Z] INFO: Tier 2 sender tests complete. Results: /tmp/test-results/tier2-kernel-interop.xml

receiver-test-client-iperf.log

[2026-06-06T14:57:07Z] INFO: iperf-sends: sent 10 packets, received 10 responses
[2026-06-06T14:57:07Z] INFO: iperf-sends: PASS (sent >= 5 packets)
[2026-06-06T14:57:07Z] INFO: JUnit XML written to: /tmp/test-results/tier3-iperf-sends.xml
[2026-06-06T14:57:07Z] INFO: iperf-sends test complete

sender-test-client-iperf.log

[2026-06-06T14:56:03Z] INFO: Pre-flight: checking DPDK state and ARP cache...
[2026-06-06T14:56:03Z] INFO: Local IP: 10.0.1.74, Peer IP: 10.0.1.242, Port: 9000
[2026-06-06T14:56:03Z] INFO: /proc/net/arp contents:
IP address       HW type     Flags       HW address            Mask     Device
10.0.1.11        0x1         0x2         02:28:08:a1:4a:19     *        ens5
10.0.1.1         0x1         0x2         02:e4:9c:99:da:99     *        ens5
10.0.1.74        0x1         0x2         02:ad:9f:62:5e:57     *        ens5
10.0.1.242       0x1         0x2         02:f3:79:2c:4d:d3     *        ens5
[2026-06-06T14:56:03Z] INFO: DPDK runtime state:
No /var/run/dpdk/ directory
[2026-06-06T14:56:03Z] INFO: vfio-pci bindings:
0000:00:06.0
bind
module
new_id
remove_id
uevent
unbind
[2026-06-06T14:56:03Z] INFO: Test binary: /opt/dpdk-stdlib/target/release/test-client
-rwxr-xr-x. 2 root root 1916480 Jun  6 14:39 /opt/dpdk-stdlib/target/release/test-client
[2026-06-06T14:56:03Z] INFO: Launching test-client: /opt/dpdk-stdlib/target/release/test-client --target 10.0.1.242 --port 9000 --bind-ip 10.0.1.74 --count 10 --delay 200
[2026-06-06T14:56:06Z] INFO: Test client output: UDP Test Client
Target: 10.0.1.242:9000
Bind address: 10.0.1.74:0
Message: 'dpdk-to-kernel-test-payload'
Count: 10
EAL: Detected CPU lcores: 2
EAL: Detected NUMA nodes: 1
EAL: Detected shared linkage of DPDK
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: VFIO support initialized
EAL: Using IOMMU type 8 (No-IOMMU)
EAL: Probe PCI driver: net_ena (1d0f:ec20) device: 0000:00:06.0 (socket -1)
TELEMETRY: No legacy callbacks, legacy socket not created
Warning: Some RX offloads not supported by device (flags: 0x1)
Warning: Some TX offloads not supported by device (flags: 0x1)
✅ DPDK UDP socket bound to 10.0.1.74:32768 (MAC: 02:ad:9f:62:5e:57)
Backend: dpdk
Sending packets...
Sent 30 bytes: 'dpdk-to-kernel-test-payload #1'
Received 30 bytes from 10.0.1.242:9000: 'dpdk-to-kernel-test-payload #1'
Sent 30 bytes: 'dpdk-to-kernel-test-payload #2'
Received 30 bytes from 10.0.1.242:9000: 'dpdk-to-kernel-test-payload #2'
Sent 30 bytes: 'dpdk-to-kernel-test-payload #3'
Received 30 bytes from 10.0.1.242:9000: 'dpdk-to-kernel-test-payload #3'
Sent 30 bytes: 'dpdk-to-kernel-test-payload #4'
Received 30 bytes from 10.0.1.242:9000: 'dpdk-to-kernel-test-payload #4'
Sent 30 bytes: 'dpdk-to-kernel-test-payload #5'
Received 30 bytes from 10.0.1.242:9000: 'dpdk-to-kernel-test-payload #5'
Sent 30 bytes: 'dpdk-to-kernel-test-payload #6'
Received 30 bytes from 10.0.1.242:9000: 'dpdk-to-kernel-test-payload #6'
Sent 30 bytes: 'dpdk-to-kernel-test-payload #7'
Received 30 bytes from 10.0.1.242:9000: 'dpdk-to-kernel-test-payload #7'
Sent 30 bytes: 'dpdk-to-kernel-test-payload #8'
Received 30 bytes from 10.0.1.242:9000: 'dpdk-to-kernel-test-payload #8'
Sent 30 bytes: 'dpdk-to-kernel-test-payload #9'
Received 30 bytes from 10.0.1.242:9000: 'dpdk-to-kernel-test-payload #9'
Sent 31 bytes: 'dpdk-to-kernel-test-payload #10'
Received 31 bytes from 10.0.1.242:9000: 'dpdk-to-kernel-test-payload #10'
Test complete
[2026-06-06T14:56:06Z] INFO: our-app-sends: sent 10 packets, received 10 responses
[2026-06-06T14:56:06Z] INFO: our-app-sends: PASS (sent >= 5 packets)
[2026-06-06T14:56:06Z] INFO: JUnit XML written to: /tmp/test-results/tier3-our-app-sends.xml
[2026-06-06T14:56:06Z] INFO: our-app-sends test complete
⚠️ SSM Command Failures (receiver-ssm-failure.log) 
=== Polling timeout after 30s ===
Status: InProgress
Instance: i-01e7c97f124c06863 (receiver)
Command ID: 0b5ab7c4-aef6-41fa-a552-e38ba86bfcfb

=== STDOUT ===


=== STDERR ===


=== Polling timeout after 30s ===
Status: InProgress
Instance: i-01e7c97f124c06863 (receiver)
Command ID: 29936d83-8bea-4b62-8026-958447e24cc7

=== STDOUT ===


=== STDERR ===


=== Polling timeout after 30s ===
Status: InProgress
Instance: i-01e7c97f124c06863 (receiver)
Command ID: 62f6e305-1e44-49f9-b41d-2ee60cd8531e

=== STDOUT ===


=== STDERR ===


=== Polling timeout after 30s ===
Status: InProgress
Instance: i-01e7c97f124c06863 (receiver)
Command ID: 0ec63544-9dca-4fc8-b0f8-2d0da72d8336

=== STDOUT ===


=== STDERR ===
⚠️ SSM Command Failures (sender-ssm-failure.log) 
=== Polling timeout after 30s ===
Status: InProgress
Instance: i-07295af8c7ede4bdd (sender)
Command ID: f2174eda-25b3-42ad-9ee1-8063a39bc5b2

=== STDOUT ===


=== STDERR ===
Network & PCI State

receiver-network-interfaces.log

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host noprefixroute 
       valid_lft forever preferred_lft forever
2: ens5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9001 qdisc mq state UP group default qlen 1000
    link/ether 02:4d:f2:a2:67:d5 brd ff:ff:ff:ff:ff:ff
    altname enp0s5
    altname eni-018084db18acdc01c
    altname device-number-0.0
    inet 10.0.1.26/24 metric 512 brd 10.0.1.255 scope global dynamic ens5
       valid_lft 1804sec preferred_lft 1804sec
    inet6 fe80::4d:f2ff:fea2:67d5/64 scope link proto kernel_ll 
       valid_lft forever preferred_lft forever
3: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default 
    link/ether 02:42:10:6b:0f:3f brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
       valid_lft forever preferred_lft forever

sender-network-interfaces.log

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host noprefixroute 
       valid_lft forever preferred_lft forever
2: ens5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9001 qdisc mq state UP group default qlen 1000
    link/ether 02:ec:07:45:b6:79 brd ff:ff:ff:ff:ff:ff
    altname enp0s5
    altname eni-0a73513a9c2b9d2ea
    altname device-number-0.0
    inet 10.0.1.248/24 metric 512 brd 10.0.1.255 scope global dynamic ens5
       valid_lft 1828sec preferred_lft 1828sec
    inet6 fe80::ec:7ff:fe45:b679/64 scope link proto kernel_ll 
       valid_lft forever preferred_lft forever
3: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default 
    link/ether 02:42:a6:da:b3:dc brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
       valid_lft forever preferred_lft forever

receiver-networking-diag-baseline.txt

=== NETWORKING DIAGNOSTICS ===
timestamp: 2026-06-06T14:41:24Z
hostname: ip-10-0-1-26.ec2.internal
kernel: 6.1.172-216.329.amzn2023.x86_64

=== DPDK PORT STATUS ===

Network devices using DPDK-compatible driver
============================================
0000:00:06.0 'Elastic Network Adapter (ENA) ec20' drv=vfio-pci unused=ena

Network devices using kernel driver
===================================
0000:00:05.0 'Elastic Network Adapter (ENA) ec20' if=ens5 drv=ena unused=vfio-pci *Active*

No 'Baseband' devices detected
==============================

No 'Crypto' devices detected
============================

No 'DMA' devices detected
=========================

No 'Eventdev' devices detected
==============================

No 'Mempool' devices detected
=============================

No 'Compress' devices detected
==============================

No 'Misc (rawdev)' devices detected
===================================

No 'Regex' devices detected
===========================

=== IP ADDRESSES ===
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host noprefixroute 
       valid_lft forever preferred_lft forever
2: ens5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9001 qdisc mq state UP group default qlen 1000
    link/ether 02:4d:f2:a2:67:d5 brd ff:ff:ff:ff:ff:ff
    altname enp0s5
    altname eni-018084db18acdc01c
    altname device-number-0.0
    inet 10.0.1.26/24 metric 512 brd 10.0.1.255 scope global dynamic ens5
       valid_lft 3241sec preferred_lft 3241sec
    inet6 fe80::4d:f2ff:fea2:67d5/64 scope link proto kernel_ll 
       valid_lft forever preferred_lft forever
3: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default 
    link/ether 02:42:10:6b:0f:3f brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
       valid_lft forever preferred_lft forever

=== ARP TABLE ===
10.0.1.23 dev ens5 lladdr 02:1f:27:0f:e3:cd REACHABLE 
10.0.1.1 dev ens5 lladdr 02:e4:9c:99:da:99 REACHABLE 

=== ROUTE TABLE ===
default via 10.0.1.1 dev ens5 proto dhcp src 10.0.1.26 metric 512 
10.0.0.2 via 10.0.1.1 dev ens5 proto dhcp src 10.0.1.26 metric 512 
10.0.1.0/24 dev ens5 proto kernel scope link src 10.0.1.26 metric 512 
10.0.1.1 dev ens5 proto dhcp scope link src 10.0.1.26 metric 512 
172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 linkdown 

=== IMDS: ENI INFORMATION ===
ENI MACs found: 02:4d:f2:a2:67:d5/ 02:f3:79:2c:4d:d3/ 

--- ENI: 02:4d:f2:a2:67:d5/ ---
  device-number: 0
  local-ipv4s: 10.0.1.26
  subnet-id: subnet-0847fd46bbbb8af6d
  subnet-cidr: 10.0.1.0/24

--- ENI: 02:f3:79:2c:4d:d3/ ---
  device-number: 1
  local-ipv4s: 10.0.1.242
  subnet-id: subnet-0847fd46bbbb8af6d
  subnet-cidr: 10.0.1.0/24


=== GATEWAY ARP TEST ===
Gateway IP: 10.0.1.1
Gateway ARP entry:
10.0.1.1 dev ens5 lladdr 02:e4:9c:99:da:99 REACHABLE 

arping result:
ARPING 10.0.1.1 from 10.0.1.26 ens5
Unicast reply from 10.0.1.1 [02:E4:9C:99:DA:99]  0.536ms
Sent 1 probes (1 broadcast(s))
Received 1 response(s)

=== HUGEPAGE STATUS ===
AnonHugePages:         0 kB
ShmemHugePages:        0 kB
FileHugePages:         0 kB
HugePages_Total:    1024
HugePages_Free:     1024
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
Hugetlb:         2097152 kB

=== VFIO STATUS ===
total 0
drwxr-xr-x.  2 root root       80 Jun  6 14:41 .
drwxr-xr-x. 14 root root     3100 Jun  6 14:40 ..
crw-------.  1 root root 243,   0 Jun  6 14:41 noiommu-0
crw-rw-rw-.  1 root root  10, 196 Jun  6 14:35 vfio

noiommu mode:
Y

=== DPDK SHARED MEMORY ===
no /var/run/dpdk/ directory (clean state)

=== DPDK-RELATED DMESG (last 30 lines) ===
[    0.068209] x86/fpu: Enabled xstate features 0x2ff, context size is 2568 bytes, using 'compacted' format.
[    0.074716] audit: type=2000 audit(1780756520.527:1): state=initialized audit_enabled=0 res=1
[    0.077128] kprobes: kprobe jump-optimization is enabled. All kprobes are optimized if possible.
[    0.101276] ACPI: Interpreter enabled
[    0.101276] ACPI: Enabled 2 GPEs in block 00 to 0F
[    0.125904] pci 0000:00:05.0: enabling Extended Tags
[    0.148643] SGI XFS with ACLs, security attributes, quota, no debug enabled
[    0.178343] ACPI: \_SB_.LNKD: Enabled at IRQ 11
[    0.260495] IPI shorthand broadcast: enabled
[    0.260557] AES CTR mode by8 optimization enabled
[    2.384832] systemd[1]: Mounting dev-hugepages.mount - Huge Pages File System...
[    2.420839] systemd[1]: Mounted dev-hugepages.mount - Huge Pages File System.
[    2.488002] VFIO - User Level meta-driver version: 0.3
[    3.532011] ena 0000:00:05.0: Elastic Network Adapter (ENA) v2.16.1g
[    3.544193] ena 0000:00:05.0: ENA device version: 0.10
[    3.544908] ena 0000:00:05.0: ENA controller version: 0.0.1 implementation version 1
[    3.644616] ena 0000:00:05.0: ENA Large LLQ is disabled
[    3.657255] ena 0000:00:05.0: Elastic Network Adapter (ENA) found at mem c0500000, mac addr 02:4d:f2:a2:67:d5
[    3.714810] ena 0000:00:05.0 ens5: renamed from eth0
[    4.470451] ena 0000:00:05.0 ens5: Local page cache is disabled for less than 16 channels
[  291.406762] pci 0000:00:06.0: enabling Extended Tags
[  291.410434] ena 0000:00:06.0: enabling device (0000 -> 0002)
[  291.422346] ena 0000:00:06.0: ENA device version: 0.10
[  291.423091] ena 0000:00:06.0: ENA controller version: 0.0.1 implementation version 1
[  291.522321] ena 0000:00:06.0: ENA Large LLQ is disabled
[  291.534535] ena 0000:00:06.0: Elastic Network Adapter (ENA) found at mem c0508000, mac addr 02:f3:79:2c:4d:d3
[  291.582349] ena 0000:00:06.0 ens6: renamed from eth0
[  291.972759] ena 0000:00:06.0 ens6: Local page cache is disabled for less than 16 channels
[  350.336472] vfio-pci 0000:00:06.0: Adding to iommu group 0
[  350.337734] vfio-pci 0000:00:06.0: Adding kernel taint for vfio-noiommu group on device

=== DPDK-RELATED PROCESSES ===
no DPDK processes running

=== END DIAGNOSTICS ===

sender-networking-diag-baseline.txt

=== NETWORKING DIAGNOSTICS ===
timestamp: 2026-06-06T14:41:16Z
hostname: ip-10-0-1-248.ec2.internal
kernel: 6.1.172-216.329.amzn2023.x86_64

=== DPDK PORT STATUS ===

Network devices using DPDK-compatible driver
============================================
0000:00:06.0 'Elastic Network Adapter (ENA) ec20' drv=vfio-pci unused=ena

Network devices using kernel driver
===================================
0000:00:05.0 'Elastic Network Adapter (ENA) ec20' if=ens5 drv=ena unused=vfio-pci *Active*

No 'Baseband' devices detected
==============================

No 'Crypto' devices detected
============================

No 'DMA' devices detected
=========================

No 'Eventdev' devices detected
==============================

No 'Mempool' devices detected
=============================

No 'Compress' devices detected
==============================

No 'Misc (rawdev)' devices detected
===================================

No 'Regex' devices detected
===========================

=== IP ADDRESSES ===
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host noprefixroute 
       valid_lft forever preferred_lft forever
2: ens5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9001 qdisc mq state UP group default qlen 1000
    link/ether 02:ec:07:45:b6:79 brd ff:ff:ff:ff:ff:ff
    altname enp0s5
    altname eni-0a73513a9c2b9d2ea
    altname device-number-0.0
    inet 10.0.1.248/24 metric 512 brd 10.0.1.255 scope global dynamic ens5
       valid_lft 3251sec preferred_lft 3251sec
    inet6 fe80::ec:7ff:fe45:b679/64 scope link proto kernel_ll 
       valid_lft forever preferred_lft forever
3: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default 
    link/ether 02:42:a6:da:b3:dc brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
       valid_lft forever preferred_lft forever

=== ARP TABLE ===
10.0.1.11 dev ens5 lladdr 02:28:08:a1:4a:19 REACHABLE 
10.0.1.1 dev ens5 lladdr 02:e4:9c:99:da:99 REACHABLE 

=== ROUTE TABLE ===
default via 10.0.1.1 dev ens5 proto dhcp src 10.0.1.248 metric 512 
10.0.0.2 via 10.0.1.1 dev ens5 proto dhcp src 10.0.1.248 metric 512 
10.0.1.0/24 dev ens5 proto kernel scope link src 10.0.1.248 metric 512 
10.0.1.1 dev ens5 proto dhcp scope link src 10.0.1.248 metric 512 
172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 linkdown 

=== IMDS: ENI INFORMATION ===
ENI MACs found: 02:ad:9f:62:5e:57/ 02:ec:07:45:b6:79/ 

--- ENI: 02:ad:9f:62:5e:57/ ---
  device-number: 1
  local-ipv4s: 10.0.1.74
  subnet-id: subnet-0847fd46bbbb8af6d
  subnet-cidr: 10.0.1.0/24

--- ENI: 02:ec:07:45:b6:79/ ---
  device-number: 0
  local-ipv4s: 10.0.1.248
  subnet-id: subnet-0847fd46bbbb8af6d
  subnet-cidr: 10.0.1.0/24


=== GATEWAY ARP TEST ===
Gateway IP: 10.0.1.1
Gateway ARP entry:
10.0.1.1 dev ens5 lladdr 02:e4:9c:99:da:99 REACHABLE 

arping result:
ARPING 10.0.1.1 from 10.0.1.248 ens5
Unicast reply from 10.0.1.1 [02:E4:9C:99:DA:99]  0.537ms
Sent 1 probes (1 broadcast(s))
Received 1 response(s)

=== HUGEPAGE STATUS ===
AnonHugePages:         0 kB
ShmemHugePages:        0 kB
FileHugePages:         0 kB
HugePages_Total:    1024
HugePages_Free:     1024
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
Hugetlb:         2097152 kB

=== VFIO STATUS ===
total 0
drwxr-xr-x.  2 root root       80 Jun  6 14:41 .
drwxr-xr-x. 14 root root     3100 Jun  6 14:40 ..
crw-------.  1 root root 243,   0 Jun  6 14:41 noiommu-0
crw-rw-rw-.  1 root root  10, 196 Jun  6 14:35 vfio

noiommu mode:
Y

=== DPDK SHARED MEMORY ===
no /var/run/dpdk/ directory (clean state)

=== DPDK-RELATED DMESG (last 30 lines) ===
[    0.066380] x86/fpu: Enabled xstate features 0x2ff, context size is 2568 bytes, using 'compacted' format.
[    0.072954] audit: type=2000 audit(1780756521.987:1): state=initialized audit_enabled=0 res=1
[    0.075376] kprobes: kprobe jump-optimization is enabled. All kprobes are optimized if possible.
[    0.099696] ACPI: Interpreter enabled
[    0.099696] ACPI: Enabled 2 GPEs in block 00 to 0F
[    0.124147] pci 0000:00:05.0: enabling Extended Tags
[    0.146690] SGI XFS with ACLs, security attributes, quota, no debug enabled
[    0.177081] ACPI: \_SB_.LNKD: Enabled at IRQ 11
[    0.265372] IPI shorthand broadcast: enabled
[    0.265434] AES CTR mode by8 optimization enabled
[    2.464832] systemd[1]: Mounting dev-hugepages.mount - Huge Pages File System...
[    2.502394] systemd[1]: Mounted dev-hugepages.mount - Huge Pages File System.
[    2.540468] VFIO - User Level meta-driver version: 0.3
[    3.557396] ena 0000:00:05.0: Elastic Network Adapter (ENA) v2.16.1g
[    3.571277] ena 0000:00:05.0: ENA device version: 0.10
[    3.571974] ena 0000:00:05.0: ENA controller version: 0.0.1 implementation version 1
[    3.697446] ena 0000:00:05.0: ENA Large LLQ is disabled
[    3.706627] ena 0000:00:05.0: Elastic Network Adapter (ENA) found at mem c0500000, mac addr 02:ec:07:45:b6:79
[    3.754760] ena 0000:00:05.0 ens5: renamed from eth0
[    4.584203] ena 0000:00:05.0 ens5: Local page cache is disabled for less than 16 channels
[  311.129882] pci 0000:00:06.0: enabling Extended Tags
[  311.133617] ena 0000:00:06.0: enabling device (0000 -> 0002)
[  311.143764] ena 0000:00:06.0: ENA device version: 0.10
[  311.144504] ena 0000:00:06.0: ENA controller version: 0.0.1 implementation version 1
[  311.243735] ena 0000:00:06.0: ENA Large LLQ is disabled
[  311.255801] ena 0000:00:06.0: Elastic Network Adapter (ENA) found at mem c0508000, mac addr 02:ad:9f:62:5e:57
[  311.323774] ena 0000:00:06.0 ens6: renamed from eth0
[  311.647217] ena 0000:00:06.0 ens6: Local page cache is disabled for less than 16 channels
[  341.933478] vfio-pci 0000:00:06.0: Adding to iommu group 0
[  341.934755] vfio-pci 0000:00:06.0: Adding kernel taint for vfio-noiommu group on device

=== DPDK-RELATED PROCESSES ===
no DPDK processes running

=== END DIAGNOSTICS ===
⚠️ Crash Diagnostics

receiver-dmesg-crashes.log

[    0.074716] pid_max: default: 32768 minimum: 301
[    0.127972] iommu: Default domain type: Translated 
[    0.128702] NetLabel:  unlabeled traffic allowed by default
[    0.134716] PCI: CLS 0 bytes, default 64
[    0.197467] nvme nvme0: 2/0/0 default/read/poll queues
[    0.425881] systemd[1]: systemd 252.23-11.amzn2023 running in system mode (+PAM +AUDIT +SELINUX -APPARMOR +IMA +SMACK +SECCOMP -GCRYPT -GNUTLS +OPENSSL +ACL +BLKID +CURL +ELFUTILS +FIDO2 +IDN2 -IDN -IPTC +KMOD +LIBCRYPTSETUP +LIBFDISK +PCRE2 +PWQUALITY +P11KIT +QRENCODE +TPM2 -BZIP2 -LZ4 +XZ +ZLIB -ZSTD +BPF_FRAMEWORK +XKBCOMMON +UTMP +SYSVINIT default-hierarchy=unified)
[    0.425978] systemd[1]: No hostname configured, using default hostname.
[    0.528568] systemd[1]: Queued start job for default target initrd.target.
[    1.701431] systemd[1]: systemd 252.23-11.amzn2023 running in system mode (+PAM +AUDIT +SELINUX -APPARMOR +IMA +SMACK +SECCOMP -GCRYPT -GNUTLS +OPENSSL +ACL +BLKID +CURL +ELFUTILS +FIDO2 +IDN2 -IDN -IPTC +KMOD +LIBCRYPTSETUP +LIBFDISK +PCRE2 +PWQUALITY +P11KIT +QRENCODE +TPM2 -BZIP2 -LZ4 +XZ +ZLIB -ZSTD +BPF_FRAMEWORK +XKBCOMMON +UTMP +SYSVINIT default-hierarchy=unified)
[    7.334148] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[  388.744075] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (echo:10198)
[  828.960581] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (echo:22494)
[ 1658.063924] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (echo:46848)

sender-dmesg-crashes.log

[    0.072936] pid_max: default: 32768 minimum: 301
[    0.126266] iommu: Default domain type: Translated 
[    0.126993] NetLabel:  unlabeled traffic allowed by default
[    0.138045] PCI: CLS 0 bytes, default 64
[    0.192252] nvme nvme0: 2/0/0 default/read/poll queues
[    0.431655] systemd[1]: systemd 252.23-11.amzn2023 running in system mode (+PAM +AUDIT +SELINUX -APPARMOR +IMA +SMACK +SECCOMP -GCRYPT -GNUTLS +OPENSSL +ACL +BLKID +CURL +ELFUTILS +FIDO2 +IDN2 -IDN -IPTC +KMOD +LIBCRYPTSETUP +LIBFDISK +PCRE2 +PWQUALITY +P11KIT +QRENCODE +TPM2 -BZIP2 -LZ4 +XZ +ZLIB -ZSTD +BPF_FRAMEWORK +XKBCOMMON +UTMP +SYSVINIT default-hierarchy=unified)
[    0.431755] systemd[1]: No hostname configured, using default hostname.
[    0.550056] systemd[1]: Queued start job for default target initrd.target.
[    1.664552] systemd[1]: systemd 252.23-11.amzn2023 running in system mode (+PAM +AUDIT +SELINUX -APPARMOR +IMA +SMACK +SECCOMP -GCRYPT -GNUTLS +OPENSSL +ACL +BLKID +CURL +ELFUTILS +FIDO2 +IDN2 -IDN -IPTC +KMOD +LIBCRYPTSETUP +LIBFDISK +PCRE2 +PWQUALITY +P11KIT +QRENCODE +TPM2 -BZIP2 -LZ4 +XZ +ZLIB -ZSTD +BPF_FRAMEWORK +XKBCOMMON +UTMP +SYSVINIT default-hierarchy=unified)
[    7.458455] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[ 1287.853551] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (echo:41533)
Kernel Console (dmesg)

receiver-console-output.log (PCI/driver events only)

[  291.408512] pci 0000:00:06.0: BAR 2 [mem 0xc0600000-0xc06fffff pref]: assigned
[  291.409502] pci 0000:00:06.0: BAR 0 [mem 0xc0508000-0xc050bfff]: assigned
[  291.410434] ena 0000:00:06.0: enabling device (0000 -> 0002)
[  291.422346] ena 0000:00:06.0: ENA device version: 0.10
[  291.423091] ena 0000:00:06.0: ENA controller version: 0.0.1 implementation version 1
[  291.522321] ena 0000:00:06.0: ENA Large LLQ is disabled
[  291.534535] ena 0000:00:06.0: Elastic Network Adapter (ENA) found at mem c0508000, mac addr 02:f3:79:2c:4d:d3
[  291.582349] ena 0000:00:06.0 ens6: renamed from eth0
[  291.972759] ena 0000:00:06.0 ens6: Local page cache is disabled for less than 16 channels
[  350.336472] vfio-pci 0000:00:06.0: Adding to iommu group 0
[  350.337734] vfio-pci 0000:00:06.0: Adding kernel taint for vfio-noiommu group on device
[  388.744075] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (echo:10198)
[  608.351216] vfio-pci 0000:00:06.0: Removing from iommu group 0
[  609.359808] ena 0000:00:06.0: ENA device version: 0.10
[  609.360558] ena 0000:00:06.0: ENA controller version: 0.0.1 implementation version 1
[  609.459786] ena 0000:00:06.0: ENA Large LLQ is disabled
[  609.471958] ena 0000:00:06.0: Elastic Network Adapter (ENA) found at mem c0508000, mac addr 02:f3:79:2c:4d:d3
[  609.482697] ena 0000:00:06.0 eth0: Local page cache is disabled for less than 16 channels
[  695.224313] vfio-pci 0000:00:06.0: Adding to iommu group 0
[  695.225587] vfio-pci 0000:00:06.0: Adding kernel taint for vfio-noiommu group on device
[  828.960581] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (echo:22494)
[  905.639166] vfio-pci 0000:00:06.0: Removing from iommu group 0
[  906.647430] ena 0000:00:06.0: ENA device version: 0.10
[  906.648165] ena 0000:00:06.0: ENA controller version: 0.0.1 implementation version 1
[  906.747501] ena 0000:00:06.0: ENA Large LLQ is disabled
[  906.759548] ena 0000:00:06.0: Elastic Network Adapter (ENA) found at mem c0508000, mac addr 02:f3:79:2c:4d:d3
[  906.769398] ena 0000:00:06.0 eth0: Local page cache is disabled for less than 16 channels
[ 1564.176097] vfio-pci 0000:00:06.0: Adding to iommu group 0
[ 1564.177354] vfio-pci 0000:00:06.0: Adding kernel taint for vfio-noiommu group on device
[ 1658.063924] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (echo:46848)

sender-console-output.log (PCI/driver events only)

[  311.647217] ena 0000:00:06.0 ens6: Local page cache is disabled for less than 16 channels
[  341.933478] vfio-pci 0000:00:06.0: Adding to iommu group 0
[  341.934755] vfio-pci 0000:00:06.0: Adding kernel taint for vfio-noiommu group on device
[  403.276013] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (tokio-rt-worker:10077)
[  404.035922] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (tokio-rt-worker:10097)
[  405.795933] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (tokio-rt-worker:10119)
[  407.355922] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (tokio-rt-worker:10142)
[  408.165901] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (tokio-rt-worker:10202)
[  459.535608] vfio-pci 0000:00:06.0: Removing from iommu group 0
[  460.548675] ena 0000:00:06.0: ENA device version: 0.10
[  460.549436] ena 0000:00:06.0: ENA controller version: 0.0.1 implementation version 1
[  460.650609] ena 0000:00:06.0: ENA Large LLQ is disabled
[  460.663441] ena 0000:00:06.0: Elastic Network Adapter (ENA) found at mem c0508000, mac addr 02:ad:9f:62:5e:57
[  460.673193] ena 0000:00:06.0 eth0: Local page cache is disabled for less than 16 channels
[ 1056.625962] vfio-pci 0000:00:06.0: Adding to iommu group 0
[ 1056.627399] vfio-pci 0000:00:06.0: Adding kernel taint for vfio-noiommu group on device
[ 1241.893708] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (tokio-rt-worker:40738)
[ 1287.853551] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (echo:41533)
[ 1351.405933] vfio-pci 0000:00:06.0: Removing from iommu group 0
[ 1352.418986] ena 0000:00:06.0: ENA device version: 0.10
[ 1352.419740] ena 0000:00:06.0: ENA controller version: 0.0.1 implementation version 1
[ 1352.520909] ena 0000:00:06.0: ENA Large LLQ is disabled
[ 1352.532856] ena 0000:00:06.0: Elastic Network Adapter (ENA) found at mem c0508000, mac addr 02:ad:9f:62:5e:57
[ 1352.543192] ena 0000:00:06.0 eth0: Local page cache is disabled for less than 16 channels
[ 1466.044426] vfio-pci 0000:00:06.0: Adding to iommu group 0
[ 1466.045715] vfio-pci 0000:00:06.0: Adding kernel taint for vfio-noiommu group on device
[ 1672.652580] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (tokio-rt-worker:56915)
[ 1673.412460] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (tokio-rt-worker:56953)
[ 1675.172491] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (tokio-rt-worker:57024)
[ 1676.942470] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (tokio-rt-worker:57096)

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@gspivey