Bump the analyzers group with 1 update by dependabot[bot] · Pull Request #120 · GabrielMarquezMatte/ExcelReader

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Bumps Meziantou.Analyzer from 3.0.259 to 3.0.290 --- updated-dependencies: - dependency-name: Meziantou.Analyzer dependency-version: 3.0.290 dependency-type: direct:production update-type: version-update:semver-patch dependency-group: analyzers ... Signed-off-by: dependabot[bot] <support@github.com>

dependabot · 2026-09-23T20:08:18Z

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github-actions · 2026-09-23T20:16:57Z

Benchmark Results

Failed to run

These produced no measurement; check the job log for the crash or exception.

ExcelReader.Benchmarks.ArrowConversionBenchmark.CsvAllString(Rows: 100000)

Baseline: master 1032df31, from the series published by benchmark-pages.yml. Both sides ran on a shared ubuntu-latest runner, so treat anything under ±10% as noise.

Moved by at least 10%

Benchmark	master	This PR	Delta
`ExcelReader.Benchmarks.EncryptedWorkbookBenchmark.Large_Encrypted_OpenOnly`	35.96 ms	64.35 ms	+79.0%
`ExcelReader.Benchmarks.EncryptedWorkbookBenchmark.Large_Plain_Stream`	54.94 ms	97.03 ms	+76.6%
`ExcelReader.Benchmarks.EncryptedWorkbookBenchmark.Plain_Stream`	47.05 µs	82.72 µs	+75.8%
`ExcelReader.Benchmarks.RealDataReadBenchmark.Csv_ExcelReader_Memory`	5.01 ms	8.41 ms	+67.7%
`ExcelReader.Benchmarks.EncryptedWorkbookBenchmark.Large_Encrypted_Stream`	90.37 ms	149.71 ms	+65.7%
`ExcelReader.Benchmarks.EncryptedWorkbookBenchmark.Encrypted_Memory`	35.70 ms	58.39 ms	+63.5%
`ExcelReader.Benchmarks.RealDataReadBenchmark.Csv_ExcelReader`	5.25 ms	8.50 ms	+62.1%
`ExcelReader.Benchmarks.EncryptedWorkbookBenchmark.Encrypted_Stream_VerifyIntegrity`	36.49 ms	59.11 ms	+62.0%
`ExcelReader.Benchmarks.EncryptedWorkbookBenchmark.Encrypted_Stream`	36.03 ms	57.86 ms	+60.6%
`ExcelReader.Benchmarks.EncryptedWorkbookBenchmark.Encrypted_OpenOnly`	35.74 ms	57.20 ms	+60.0%
`ExcelReader.Benchmarks.CsvParallelParseBenchmark.NarrowIntAggregate(Dop: 16)`	221.57 ms	324.01 ms	+46.2%
`ExcelReader.Benchmarks.CsvParseBenchmark.Sep(Rows: 50000)`	10.27 ms	14.80 ms	+44.1%
`ExcelReader.Benchmarks.ParseBenchmark.ExcelParserSyncSharedStrings(Rows: 50000)`	14.47 ms	20.76 ms	+43.5%
`ExcelReader.Benchmarks.CsvParallelParseBenchmark.NarrowIntAggregate(Dop: 8)`	222.12 ms	316.20 ms	+42.4%
`ExcelReader.Benchmarks.CsvParallelVsSepBenchmark.ExcelReader_Sequential(Corpus: ConversionHeavy)`	704.13 ms	1.00 s	+42.3%
`ExcelReader.Benchmarks.CsvParallelParseBenchmark.NarrowIntAggregate(Dop: 1)`	556.86 ms	778.85 ms	+39.9%
`ExcelReader.Benchmarks.RealDataReadBenchmark.Csv_ExcelReader_Materialized`	22.31 ms	31.13 ms	+39.5%
`ExcelReader.Benchmarks.CsvParallelParseBenchmark.ConversionHeavy(Dop: 2)`	854.16 ms	1.19 s	+39.4%
`ExcelReader.Benchmarks.CsvParallelParseBenchmark.ConversionHeavyAggregate(Dop: 16)`	374.10 ms	513.07 ms	+37.1%
`ExcelReader.Benchmarks.CsvParallelParseBenchmark.NarrowIntAggregate(Dop: 4)`	228.81 ms	312.21 ms	+36.4%
`ExcelReader.Benchmarks.CsvParallelParseBenchmark.NarrowInt(Dop: 16)`	337.73 ms	460.18 ms	+36.3%
`ExcelReader.Benchmarks.ParseBenchmark.ExcelParserXlsbAsync(Rows: 50000)`	9.39 ms	12.71 ms	+35.4%
`ExcelReader.Benchmarks.CsvParallelVsSepBenchmark.Sep_Parallel(Corpus: NarrowInt)`	342.25 ms	462.21 ms	+35.1%
`ExcelReader.Benchmarks.CsvParallelParseBenchmark.ConversionHeavyAggregate(Dop: 1)`	890.05 ms	1.20 s	+34.9%
`ExcelReader.Benchmarks.CsvParallelParseBenchmark.ConversionHeavy(Dop: 16)`	561.73 ms	756.78 ms	+34.7%
`ExcelReader.Benchmarks.CsvParseBenchmark.Sylvan(Rows: 50000)`	14.87 ms	20.00 ms	+34.5%
`ExcelReader.Benchmarks.CsvParallelParseBenchmark.ConversionHeavy(Dop: 8)`	584.71 ms	784.14 ms	+34.1%
`ExcelReader.Benchmarks.CsvReadBenchmark.ExcelReaderWide(Rows: 50000)`	9.54 ms	12.69 ms	+33.0%
`ExcelReader.Benchmarks.RealDataReadBenchmark.Xlsx_ExcelReader_Memory_Prefetch`	51.95 ms	68.78 ms	+32.4%
`ExcelReader.Benchmarks.ParseBenchmark.ExcelParserAsync(Rows: 50000)`	18.60 ms	24.60 ms	+32.3%
`ExcelReader.Benchmarks.CsvParallelParseBenchmark.NarrowIntAggregate(Dop: 2)`	404.30 ms	534.59 ms	+32.2%
`ExcelReader.Benchmarks.CsvParallelVsSepBenchmark.ExcelReader_Parallel(Corpus: NarrowInt)`	357.09 ms	469.93 ms	+31.6%
`ExcelReader.Benchmarks.RealDataReadBenchmark.Xlsm_ExcelReader`	75.06 ms	98.46 ms	+31.2%
`ExcelReader.Benchmarks.RealDataTypedParseBenchmark.Xlsx_ExcelParser`	86.69 ms	113.56 ms	+31.0%
`ExcelReader.Benchmarks.CsvParallelParseBenchmark.ConversionHeavyAggregate(Dop: 8)`	390.73 ms	511.47 ms	+30.9%
`ExcelReader.Benchmarks.RealDataReadBenchmark.Xlsb_ExcelReader_Memory`	28.85 ms	37.64 ms	+30.5%
`ExcelReader.Benchmarks.RealDataReadBenchmark.Xlsx_ExcelReader_Memory`	74.56 ms	97.20 ms	+30.4%
`ExcelReader.Benchmarks.RealDataReadBenchmark.Xls_ExcelReader_Memory`	11.65 ms	15.18 ms	+30.3%
`ExcelReader.Benchmarks.RealDataReadBenchmark.Xlsm_Sylvan`	230.79 ms	300.66 ms	+30.3%
`ExcelReader.Benchmarks.RealDataReadBenchmark.Xlsx_Sylvan`	229.76 ms	299.13 ms	+30.2%
`ExcelReader.Benchmarks.RealDataReadBenchmark.Xlsb_ExcelReader`	28.93 ms	37.59 ms	+29.9%
`ExcelReader.Benchmarks.RealDataReadBenchmark.Xlsb_ExcelReader_Prefetch`	17.37 ms	22.57 ms	+29.9%
`ExcelReader.Benchmarks.CsvParseBenchmark.ExcelParserAsync(Rows: 50000)`	6.15 ms	7.98 ms	+29.8%
`ExcelReader.Benchmarks.RealDataReadBenchmark.Xlsx_ExcelReader`	75.09 ms	97.46 ms	+29.8%
`ExcelReader.Benchmarks.RealDataTypedParseBenchmark.Xlsb_ExcelParser`	38.64 ms	50.11 ms	+29.7%
`ExcelReader.Benchmarks.CsvParseBenchmark.CsvHelperLib(Rows: 50000)`	28.45 ms	36.82 ms	+29.4%
`ExcelReader.Benchmarks.RealDataReadBenchmark.Xls_ExcelReader_Materialized`	13.82 ms	17.87 ms	+29.3%
`ExcelReader.Benchmarks.RealDataReadBenchmark.Xlsm_ExcelReader_Materialized`	76.78 ms	99.11 ms	+29.1%
`ExcelReader.Benchmarks.CsvParallelParseBenchmark.NarrowInt(Dop: 8)`	350.34 ms	452.16 ms	+29.1%
`ExcelReader.Benchmarks.ParseBenchmark.ExcelParserStructSync(Rows: 50000)`	17.07 ms	22.03 ms	+29.0%
`ExcelReader.Benchmarks.RealDataReadBenchmark.Xls_ExcelReader`	11.81 ms	15.23 ms	+29.0%
`ExcelReader.Benchmarks.RealDataReadBenchmark.Xlsx_ExcelReader_Materialized`	77.02 ms	99.17 ms	+28.8%
`ExcelReader.Benchmarks.RealDataReadBenchmark.Xls_Sylvan`	21.38 ms	27.46 ms	+28.5%
`ExcelReader.Benchmarks.RealDataReadBenchmark.Xlsb_Sylvan`	35.33 ms	45.34 ms	+28.3%
`ExcelReader.Benchmarks.RealDataReadBenchmark.Xlsb_ExcelReader_Materialized`	31.62 ms	40.43 ms	+27.9%
`ExcelReader.Benchmarks.RealDataReadBenchmark.Xlsb_ExcelReader_Memory_Prefetch`	17.91 ms	22.89 ms	+27.8%
`ExcelReader.Benchmarks.ParseBenchmark.SylvanAsync(Rows: 50000)`	72.58 ms	92.62 ms	+27.6%
`ExcelReader.Benchmarks.RealDataReadBenchmark.Xlsm_ExcelReader_Prefetch`	53.47 ms	68.15 ms	+27.4%
`ExcelReader.Benchmarks.RealDataReadBenchmark.Xlsm_ExcelReader_Memory`	75.39 ms	95.65 ms	+26.9%
`ExcelReader.Benchmarks.ParseBenchmark.MiniExcel(Rows: 50000)`	200.87 ms	254.74 ms	+26.8%
`ExcelReader.Benchmarks.ParseBenchmark.Sylvan(Rows: 50000)`	71.35 ms	89.67 ms	+25.7%
`ExcelReader.Benchmarks.RealDataReadBenchmark.Xlsm_ExcelReader_Memory_Prefetch`	54.06 ms	67.87 ms	+25.6%
`ExcelReader.Benchmarks.CsvParallelParseBenchmark.NarrowInt(Dop: 2)`	551.92 ms	692.67 ms	+25.5%
`ExcelReader.Benchmarks.RealDataReadBenchmark.Xlsx_ExcelReader_Prefetch`	52.97 ms	66.28 ms	+25.1%
`ExcelReader.Benchmarks.ParseBenchmark.ExcelParserSync(Rows: 50000)`	18.72 ms	23.38 ms	+24.9%
`ExcelReader.Benchmarks.CsvParallelVsSepBenchmark.Sep_Sequential(Corpus: NarrowInt)`	472.71 ms	588.00 ms	+24.4%
`ExcelReader.Benchmarks.CsvParallelVsSepBenchmark.Sep_Sequential(Corpus: ConversionHeavy)`	904.05 ms	1.12 s	+24.2%
`ExcelReader.Benchmarks.CsvParallelVsSepBenchmark.Sep_Parallel(Corpus: ConversionHeavy)`	683.80 ms	845.13 ms	+23.6%
`ExcelReader.Benchmarks.CsvParallelParseBenchmark.ConversionHeavy(Dop: 1)`	1.16 s	1.44 s	+23.5%
`ExcelReader.Benchmarks.CsvParallelParseBenchmark.NarrowInt(Dop: 1)`	654.78 ms	803.02 ms	+22.6%
`ExcelReader.Benchmarks.ParseBenchmark.ExcelParserXlsbSync(Rows: 50000)`	9.48 ms	11.57 ms	+22.1%
`ExcelReader.Benchmarks.CsvParallelParseBenchmark.ConversionHeavyAggregate(Dop: 4)`	427.69 ms	499.67 ms	+16.8%
`ExcelReader.Benchmarks.CsvParseBenchmark.ExcelParserSync(Rows: 50000)`	6.74 ms	7.84 ms	+16.2%
`ExcelReader.Benchmarks.CsvParallelParseBenchmark.NarrowInt(Dop: 4)`	396.10 ms	449.92 ms	+13.6%
`ExcelReader.Benchmarks.CsvParallelParseBenchmark.ConversionHeavyAggregate(Dop: 2)`	637.08 ms	722.55 ms	+13.4%
`ExcelReader.Benchmarks.CsvParallelParseBenchmark.ConversionHeavy(Dop: 4)`	660.01 ms	748.20 ms	+13.4%
`ExcelReader.Benchmarks.CsvParallelVsSepBenchmark.ExcelReader_Parallel(Corpus: ConversionHeavy)`	461.53 ms	522.80 ms	+13.3%
`ExcelReader.Benchmarks.CsvParallelVsSepBenchmark.ExcelReader_Sequential(Corpus: NarrowInt)`	619.07 ms	700.48 ms	+13.2%
`ExcelReader.Benchmarks.WriteBenchmark.ExcelReaderWriterSharedStrings(Rows: 50000)`	19.15 ms	17.20 ms	-10.2%
`ExcelReader.Benchmarks.DataReaderBenchmark.DataReader_TypedGetters(Rows: 50000)`	21.70 ms	19.37 ms	-10.7%
`ExcelReader.Benchmarks.XlsWriteBenchmark.XlsWriter(Rows: 50000)`	7.32 ms	6.50 ms	-11.2%
`ExcelReader.Benchmarks.WritePathBenchmark.StyledRows_Xlsx`	11.48 ms	9.98 ms	-13.1%
`ExcelReader.Benchmarks.RecordWriteBenchmark.Xls(Rows: 50000)`	7.83 ms	6.43 ms	-17.8%
`ExcelReader.Benchmarks.ColdStartBenchmark.FluentParseWithAttributeFallbackFirstUse(Rows: 200)`	44.49 ms	35.12 ms	-21.0%
`ExcelReader.Benchmarks.ColdStartBenchmark.FluentParseFirstUse(Rows: 200)`	35.69 ms	27.89 ms	-21.8%
`ExcelReader.Benchmarks.ColdStartBenchmark.TypedParseFirstUse(Rows: 200)`	41.52 ms	32.07 ms	-22.8%
`ExcelReader.Benchmarks.ColdStartBenchmark.RecordWriteFirstUse(Rows: 200)`	26.09 ms	19.55 ms	-25.0%
`ExcelReader.Benchmarks.StringHeavyReadBenchmark.Xlsb_ExcelReader_Materialized(Rows: 65536)`	78.02 ms	56.86 ms	-27.1%
`ExcelReader.Benchmarks.NativeRowReadBenchmark.ReadAllDecoded`	112.18 ms	77.90 ms	-30.6%
`ExcelReader.Benchmarks.StringHeavyReadBenchmark.Xlsx_ExcelReader_Materialized_Interned(Rows: 65536)`	115.34 ms	79.64 ms	-30.9%
`ExcelReader.Benchmarks.StringHeavyReadBenchmark.Xlsb_ExcelReader_Materialized_Interned(Rows: 65536)`	82.22 ms	56.33 ms	-31.5%
`ExcelReader.Benchmarks.StringHeavyReadBenchmark.Xlsb_ExcelReader_Memory(Rows: 65536)`	51.68 ms	33.98 ms	-34.2%
`ExcelReader.Benchmarks.StringHeavyReadBenchmark.Xlsb_ExcelReader(Rows: 65536)`	51.86 ms	33.89 ms	-34.7%
`ExcelReader.Benchmarks.StringHeavyReadBenchmark.Xlsx_ExcelReader(Rows: 65536)`	83.47 ms	54.46 ms	-34.7%
`ExcelReader.Benchmarks.StringHeavyReadBenchmark.Xlsx_ExcelReader_Prefetch(Rows: 65536)`	58.24 ms	37.78 ms	-35.1%
`ExcelReader.Benchmarks.StringHeavyReadBenchmark.Xlsx_Sylvan(Rows: 65536)`	273.03 ms	175.72 ms	-35.6%
`ExcelReader.Benchmarks.StringHeavyReadBenchmark.Xlsb_Sylvan(Rows: 65536)`	99.29 ms	63.04 ms	-36.5%
`ExcelReader.Benchmarks.StringHeavyReadBenchmark.Xlsx_ExcelReader_Materialized(Rows: 65536)`	126.26 ms	79.66 ms	-36.9%
`ExcelReader.Benchmarks.NativeTypedParseBenchmark.ParseArrow`	54.38 ms	34.08 ms	-37.3%
`ExcelReader.Benchmarks.NativeTypedParseBenchmark.ParseTyped`	54.31 ms	32.96 ms	-39.3%
`ExcelReader.Benchmarks.NativeRowReadBenchmark.NextRowBlob`	95.10 ms	56.68 ms	-40.4%
`ExcelReader.Benchmarks.NativeRowReadBenchmark.NextRowDecoded`	102.67 ms	60.49 ms	-41.1%
`ExcelReader.Benchmarks.ChunkedParseBenchmark.WholeSheet(Rows: 50000)`	18.41 ms	10.80 ms	-41.4%
`ExcelReader.Benchmarks.NativeRowReadBenchmark.ReadAllBlob`	100.24 ms	57.89 ms	-42.3%
`ExcelReader.Benchmarks.StringHeavyReadBenchmark.Xlsb_ExcelReader_Prefetch(Rows: 65536)`	44.49 ms	25.51 ms	-42.7%
`ExcelReader.Benchmarks.ChunkedParseBenchmark.Batched_10k(Rows: 50000)`	18.53 ms	10.61 ms	-42.8%
`ExcelReader.Benchmarks.ChunkedParseBenchmark.Batched_1k(Rows: 50000)`	19.38 ms	10.63 ms	-45.2%
`ExcelReader.Benchmarks.RealDataReadBenchmark.Csv_Sylvan`	13.40 ms	7.13 ms	-46.8%

43 within ±10%, 1 with no baseline entry (new, renamed, or reparameterized).

Full results per group

ExcelReader.Benchmarks.ArrowConversionBenchmark


BenchmarkDotNet v0.15.8, Linux Ubuntu 24.04.5 LTS (Noble Numbat)
AMD EPYC 9V74 2.60GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 10.0.401
  [Host]     : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v3
  Job-MEHJPP : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v3

IterationCount=5  WarmupCount=1

Method	Rows	Mean	Error	StdDev	Ratio	RatioSD	Gen0	Gen1	Gen2	Allocated	Alloc Ratio
CsvAllString	100000	NA	NA	NA	?	?	NA	NA	NA	NA	?
CsvTyped	100000	16.46 ms	0.685 ms	0.178 ms	?	?	281.2500	250.0000	250.0000	8.13 MB	?
XlsbTyped	100000	22.90 ms	0.165 ms	0.043 ms	?	?	562.5000	531.2500	531.2500	8.15 MB	?
CsvTypedWithInference	100000	16.33 ms	0.261 ms	0.040 ms	?	?	718.7500	656.2500	656.2500	14.89 MB	?

Benchmarks with issues:
ArrowConversionBenchmark.CsvAllString: Job-MEHJPP(IterationCount=5, WarmupCount=1) [Rows=100000]

ExcelReader.Benchmarks.ChunkedParseBenchmark


BenchmarkDotNet v0.15.8, Linux Ubuntu 24.04.5 LTS (Noble Numbat)
AMD EPYC 9V45 2.60GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 10.0.401
  [Host]     : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v4
  Job-MEHJPP : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v4

IterationCount=5  WarmupCount=1

Method	Rows	Mean	Error	StdDev	Ratio	Gen0	Gen1	Allocated	Alloc Ratio
WholeSheet	50000	10.80 ms	0.558 ms	0.086 ms	1.00	78.1250	62.5000	1.31 MB	1.00
Batched_10k	50000	10.61 ms	0.534 ms	0.083 ms	0.98	93.7500	46.8750	1.6 MB	1.23
Batched_1k	50000	10.63 ms	0.402 ms	0.062 ms	0.98	93.7500	-	1.51 MB	1.16

ExcelReader.Benchmarks.ColdStartBenchmark


BenchmarkDotNet v0.15.8, Linux Ubuntu 24.04.5 LTS (Noble Numbat)
AMD EPYC 9V74 2.60GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 10.0.401
  [Host]     : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v4
  Job-GOEFXF : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v4

InvocationCount=1  IterationCount=1  LaunchCount=16  
RunStrategy=ColdStart  UnrollFactor=1  WarmupCount=0

Method	Rows	Mean	Error	StdDev	Allocated
TypedParseFirstUse	200	32.07 ms	0.154 ms	0.151 ms	28.43 KB
RecordWriteFirstUse	200	19.55 ms	0.423 ms	0.416 ms	84.27 KB
FluentParseFirstUse	200	27.89 ms	0.080 ms	0.079 ms	30.95 KB
FluentParseWithAttributeFallbackFirstUse	200	35.12 ms	1.866 ms	1.833 ms	32.65 KB

ExcelReader.Benchmarks.CsvParallelParseBenchmark


BenchmarkDotNet v0.15.8, Linux Ubuntu 24.04.5 LTS (Noble Numbat)
AMD EPYC 7763 2.45GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 10.0.401
  [Host]     : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v3
  Job-MEHJPP : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v3

IterationCount=5  WarmupCount=1

Method	Dop	Mean	Error	StdDev	Ratio	RatioSD	Gen0	Gen1	Allocated	Alloc Ratio
ConversionHeavy	1	1,435.2 ms	116.95 ms	30.37 ms	1.00	0.03	42000.0000	-	687056.97 KB	1.000
NarrowInt	1	803.0 ms	131.47 ms	34.14 ms	0.56	0.02	15000.0000	-	251162.02 KB	0.366
ConversionHeavyAggregate	1	1,200.7 ms	98.96 ms	25.70 ms	0.84	0.02	-	-	827.42 KB	0.001
NarrowIntAggregate	1	778.8 ms	139.45 ms	36.22 ms	0.54	0.03	-	-	815.45 KB	0.001

ConversionHeavy	2	1,190.3 ms	45.59 ms	11.84 ms	1.00	0.01	42000.0000	24000.0000	698204.45 KB	1.000
NarrowInt	2	692.7 ms	27.74 ms	7.20 ms	0.58	0.01	16000.0000	1000.0000	262389.64 KB	0.376
ConversionHeavyAggregate	2	722.6 ms	44.38 ms	6.87 ms	0.61	0.01	-	-	1240.35 KB	0.002
NarrowIntAggregate	2	534.6 ms	7.47 ms	1.94 ms	0.45	0.00	-	-	1232.68 KB	0.002

ConversionHeavy	4	748.2 ms	45.95 ms	11.93 ms	1.00	0.02	42000.0000	20000.0000	698308.69 KB	1.000
NarrowInt	4	449.9 ms	34.40 ms	5.32 ms	0.60	0.01	16000.0000	1000.0000	262502.91 KB	0.376
ConversionHeavyAggregate	4	499.7 ms	40.89 ms	10.62 ms	0.67	0.02	-	-	1318.86 KB	0.002
NarrowIntAggregate	4	312.2 ms	46.72 ms	7.23 ms	0.42	0.01	-	-	1258.19 KB	0.002

ConversionHeavy	8	784.1 ms	123.67 ms	32.12 ms	1.00	0.05	42000.0000	21000.0000	698411.7 KB	1.000
NarrowInt	8	452.2 ms	19.75 ms	3.06 ms	0.58	0.02	16000.0000	1000.0000	262644.81 KB	0.376
ConversionHeavyAggregate	8	511.5 ms	20.69 ms	5.37 ms	0.65	0.03	-	-	1303.12 KB	0.002
NarrowIntAggregate	8	316.2 ms	12.96 ms	3.37 ms	0.40	0.02	-	-	1284.07 KB	0.002

ConversionHeavy	16	756.8 ms	66.70 ms	17.32 ms	1.00	0.03	42000.0000	20000.0000	698668.73 KB	1.000
NarrowInt	16	460.2 ms	70.05 ms	18.19 ms	0.61	0.03	16000.0000	1000.0000	262996.39 KB	0.376
ConversionHeavyAggregate	16	513.1 ms	13.79 ms	3.58 ms	0.68	0.01	-	-	1361.26 KB	0.002
NarrowIntAggregate	16	324.0 ms	46.76 ms	12.14 ms	0.43	0.02	-	-	1366.21 KB	0.002

ExcelReader.Benchmarks.CsvParallelVsSepBenchmark


BenchmarkDotNet v0.15.8, Linux Ubuntu 24.04.5 LTS (Noble Numbat)
AMD EPYC 7763 2.45GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 10.0.401
  [Host]     : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v3
  Job-MEHJPP : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v3

IterationCount=5  WarmupCount=1

Method	Corpus	Mean	Error	StdDev	Ratio	RatioSD	Gen0	Gen1	Gen2	Allocated	Alloc Ratio
ExcelReader_Sequential	NarrowInt	700.5 ms	8.69 ms	1.35 ms	1.00	0.00	15000.0000	-	-	244.15 MB	1.00
ExcelReader_Parallel	NarrowInt	469.9 ms	76.93 ms	19.98 ms	0.67	0.03	16000.0000	1000.0000	-	256.45 MB	1.05
Sep_Sequential	NarrowInt	588.0 ms	5.31 ms	0.82 ms	0.84	0.00	15000.0000	-	-	244.15 MB	1.00
Sep_Parallel	NarrowInt	462.2 ms	77.12 ms	20.03 ms	0.66	0.03	17000.0000	15000.0000	1000.0000	258.39 MB	1.06

ExcelReader_Sequential	ConversionHeavy	1,001.6 ms	6.24 ms	1.62 ms	1.00	0.00	29000.0000	-	-	467.31 MB	1.00
ExcelReader_Parallel	ConversionHeavy	522.8 ms	29.46 ms	4.56 ms	0.52	0.00	29000.0000	25000.0000	-	475.85 MB	1.02
Sep_Sequential	ConversionHeavy	1,122.8 ms	11.54 ms	1.79 ms	1.12	0.00	29000.0000	-	-	467.31 MB	1.00
Sep_Parallel	ConversionHeavy	845.1 ms	67.48 ms	17.52 ms	0.84	0.02	34000.0000	33000.0000	4000.0000	477.42 MB	1.02

ExcelReader.Benchmarks.CsvParseBenchmark


BenchmarkDotNet v0.15.8, Linux Ubuntu 24.04.5 LTS (Noble Numbat)
AMD EPYC 7763 2.45GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 10.0.401
  [Host]     : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v3
  Job-MEHJPP : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v3

IterationCount=5  WarmupCount=1

Method	Rows	Mean	Error	StdDev	Ratio	RatioSD	Gen0	Gen1	Allocated	Alloc Ratio
ExcelParserSync	50000	7.836 ms	0.1143 ms	0.0177 ms	1.00	0.00	242.1875	-	3.86 MB	1.00
ExcelParserAsync	50000	7.979 ms	0.3582 ms	0.0930 ms	1.02	0.01	234.3750	-	3.86 MB	1.00
Sep	50000	14.799 ms	0.5854 ms	0.1520 ms	1.89	0.02	234.3750	-	3.87 MB	1.00
Sylvan	50000	20.001 ms	0.2129 ms	0.0329 ms	2.55	0.01	656.2500	62.5000	10.95 MB	2.83
CsvHelperLib	50000	36.824 ms	0.3580 ms	0.0930 ms	4.70	0.01	857.1429	71.4286	14.41 MB	3.73

ExcelReader.Benchmarks.CsvReadBenchmark


BenchmarkDotNet v0.15.8, Linux Ubuntu 24.04.5 LTS (Noble Numbat)
AMD EPYC 7763 2.78GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 10.0.401
  [Host]     : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v3
  Job-MEHJPP : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v3

IterationCount=5  WarmupCount=1

Method	Rows	Mean	Error	StdDev	Ratio	RatioSD	Gen0	Gen1	Allocated	Alloc Ratio
ExcelReader	50000	4.714 ms	0.0676 ms	0.0176 ms	1.00	0.00	-	-	1.48 KB	1.00
ExcelReaderWide	50000	12.686 ms	0.1557 ms	0.0404 ms	2.69	0.01	-	-	1.41 KB	0.96
ExcelReaderAsync	50000	4.223 ms	0.1212 ms	0.0315 ms	0.90	0.01	-	-	1.55 KB	1.05
Sep	50000	13.545 ms	0.1619 ms	0.0420 ms	2.87	0.01	-	-	3.93 KB	2.66
Sylvan	50000	6.391 ms	0.0475 ms	0.0123 ms	1.36	0.01	-	-	37.78 KB	25.58
CsvHelperLib	50000	36.929 ms	0.6571 ms	0.1707 ms	7.83	0.04	857.1429	71.4286	14720.14 KB	9,969.20

ExcelReader.Benchmarks.CsvWriteBenchmark


BenchmarkDotNet v0.15.8, Linux Ubuntu 24.04.5 LTS (Noble Numbat)
AMD EPYC 9V74 2.60GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 10.0.401
  [Host]     : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v3
  Job-MEHJPP : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v3

IterationCount=5  WarmupCount=1

Method	Rows	Mean	Error	StdDev	Ratio	RatioSD	Gen0	Gen1	Gen2	Allocated	Alloc Ratio
ExcelReaderWriter	50000	6.497 ms	0.3888 ms	0.0602 ms	1.00	0.01	500.0000	500.0000	500.0000	4 MB	1.00
Sep	50000	9.831 ms	0.6030 ms	0.1566 ms	1.51	0.03	500.0000	500.0000	500.0000	4.01 MB	1.00
SylvanWriter	50000	9.883 ms	0.4047 ms	0.1051 ms	1.52	0.02	500.0000	500.0000	500.0000	4.04 MB	1.01
CsvHelperLib	50000	19.653 ms	0.4453 ms	0.0689 ms	3.03	0.03	1187.5000	656.2500	593.7500	13.79 MB	3.44

ExcelReader.Benchmarks.DataReaderBenchmark


BenchmarkDotNet v0.15.8, Linux Ubuntu 24.04.5 LTS (Noble Numbat)
AMD EPYC 9V74 2.60GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 10.0.401
  [Host]     : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v3
  Job-MEHJPP : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v3

IterationCount=5  WarmupCount=1

Method	Rows	Mean	Error	StdDev	Ratio	RatioSD	Gen0	Gen1	Gen2	Allocated	Alloc Ratio
Baseline_RawRows	50000	15.19 ms	0.037 ms	0.006 ms	1.00	0.00	-	-	-	11.18 KB	1.00
DataReader_GetValue	50000	19.82 ms	0.055 ms	0.014 ms	1.30	0.00	312.5000	-	-	5138.82 KB	459.66
DataReader_TypedGetters	50000	19.37 ms	0.332 ms	0.086 ms	1.27	0.01	93.7500	-	-	1623.2 KB	145.19
DataReader_GetBytes	50000	15.66 ms	0.122 ms	0.032 ms	1.03	0.00	-	-	-	11.87 KB	1.06
DataTable_Load	50000	84.80 ms	27.926 ms	7.252 ms	5.58	0.44	1500.0000	1000.0000	500.0000	23399.48 KB	2,093.04

ExcelReader.Benchmarks.EncryptedWorkbookBenchmark


BenchmarkDotNet v0.15.8, Linux Ubuntu 24.04.5 LTS (Noble Numbat)
AMD EPYC 9V74 2.60GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 10.0.401
  [Host]     : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v3
  Job-MEHJPP : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v3

IterationCount=5  WarmupCount=1

Method	Mean	Error	StdDev	Ratio	RatioSD	Gen0	Allocated	Alloc Ratio
Plain_Stream	82.72 μs	51.03 μs	7.897 μs	1.01	0.12	0.9766	19.41 KB	1.00
Encrypted_Stream	57,855.46 μs	601.21 μs	93.038 μs	703.99	57.36	-	48.32 KB	2.49
Encrypted_Stream_VerifyIntegrity	59,113.88 μs	1,884.37 μs	489.364 μs	719.30	58.47	-	50.25 KB	2.59
Encrypted_Memory	58,386.65 μs	2,304.09 μs	598.365 μs	710.45	57.88	-	52.74 KB	2.72
Encrypted_OpenOnly	57,196.87 μs	1,252.60 μs	193.842 μs	695.97	56.74	-	42.8 KB	2.20
Large_Plain_Stream	97,029.28 μs	5,869.55 μs	908.319 μs	1,180.65	96.69	-	11.18 KB	0.58
Large_Encrypted_Stream	149,712.06 μs	4,550.16 μs	704.142 μs	1,821.70	148.60	-	36.96 KB	1.90
Large_Encrypted_OpenOnly	64,353.17 μs	743.66 μs	193.125 μs	783.05	63.41	-	36.38 KB	1.87

ExcelReader.Benchmarks.NativeRowReadBenchmark


BenchmarkDotNet v0.15.8, Linux Ubuntu 24.04.5 LTS (Noble Numbat)
AMD EPYC 9V45 2.60GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 10.0.401
  [Host]     : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v4
  Job-MEHJPP : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v4

IterationCount=5  WarmupCount=1

Method	Mean	Error	StdDev	Ratio	RatioSD	Gen0	Gen1	Gen2	Allocated	Alloc Ratio
NextRowBlob	56.68 ms	3.007 ms	0.465 ms	1.00	0.01	222.2222	222.2222	222.2222	3.71 MB	1.00
NextRowDecoded	60.49 ms	1.635 ms	0.253 ms	1.07	0.01	222.2222	222.2222	222.2222	3.71 MB	1.00
ReadAllBlob	57.89 ms	1.970 ms	0.512 ms	1.02	0.01	1000.0000	888.8889	-	21.06 MB	5.68
ReadAllDecoded	77.90 ms	4.144 ms	1.076 ms	1.37	0.02	571.4286	571.4286	571.4286	5.71 MB	1.54

ExcelReader.Benchmarks.NativeTypedParseBenchmark


BenchmarkDotNet v0.15.8, Linux Ubuntu 24.04.5 LTS (Noble Numbat)
AMD EPYC 9V45 2.60GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 10.0.401
  [Host]     : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v4
  Job-MEHJPP : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v4

IterationCount=5  WarmupCount=1

Method	Mean	Error	StdDev	Ratio	Gen0	Gen1	Gen2	Allocated	Alloc Ratio
ParseTyped	32.96 ms	2.343 ms	0.363 ms	1.00	866.6667	733.3333	400.0000	11.61 MB	1.00
ParseArrow	34.08 ms	0.929 ms	0.241 ms	1.03	866.6667	733.3333	400.0000	11.62 MB	1.00

ExcelReader.Benchmarks.ParseBenchmark


BenchmarkDotNet v0.15.8, Linux Ubuntu 24.04.5 LTS (Noble Numbat)
AMD EPYC 7763 2.45GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 10.0.401
  [Host]     : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v3
  Job-MEHJPP : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v3

IterationCount=5  WarmupCount=1

Method	Rows	Mean	Error	StdDev	Ratio	RatioSD	Gen0	Allocated	Alloc Ratio
ExcelParserSync	50000	23.38 ms	0.035 ms	0.005 ms	1.00	0.00	218.7500	3966.8 KB	1.000
ExcelParserSyncSharedStrings	50000	20.76 ms	0.217 ms	0.056 ms	0.89	0.00	125.0000	2357.29 KB	0.594
ExcelParserStructSync	50000	22.03 ms	0.077 ms	0.020 ms	0.94	0.00	93.7500	1623.05 KB	0.409
RefStructModelSync	50000	20.78 ms	0.161 ms	0.042 ms	0.89	0.00	-	11.72 KB	0.003
ExcelParserAsync	50000	24.60 ms	0.114 ms	0.030 ms	1.05	0.00	218.7500	3968.95 KB	1.001
ExcelParserXlsbSync	50000	11.57 ms	0.318 ms	0.049 ms	0.50	0.00	234.3750	3968.9 KB	1.001
ExcelParserXlsbAsync	50000	12.71 ms	0.067 ms	0.017 ms	0.54	0.00	234.3750	3971.47 KB	1.001
MiniExcel	50000	254.74 ms	8.541 ms	1.322 ms	10.90	0.05	16000.0000	262296.95 KB	66.123
Sylvan	50000	89.67 ms	1.845 ms	0.479 ms	3.84	0.02	-	10726.71 KB	2.704
SylvanAsync	50000	92.62 ms	1.947 ms	0.506 ms	3.96	0.02	-	10727.74 KB	2.704

ExcelReader.Benchmarks.ReadBenchmark


BenchmarkDotNet v0.15.8, Linux Ubuntu 24.04.5 LTS (Noble Numbat)
AMD EPYC 7763 2.78GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 10.0.401
  [Host]     : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v3
  Job-MEHJPP : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v3

IterationCount=5  WarmupCount=1

Method	Rows	Mean	Error	StdDev	Ratio	RatioSD	Gen0	Allocated	Alloc Ratio
ExcelReader	50000	18.430 ms	0.1027 ms	0.0267 ms	1.00	0.00	-	11.18 KB	1.00
ExcelReaderAsync	50000	18.568 ms	0.1401 ms	0.0364 ms	1.01	0.00	-	13.31 KB	1.19
ExcelReaderXlsb	50000	7.417 ms	0.0904 ms	0.0235 ms	0.40	0.00	-	13.28 KB	1.19
ExcelReaderXlsbAsync	50000	7.910 ms	0.1233 ms	0.0191 ms	0.43	0.00	-	15.84 KB	1.42
ExcelReaderMaterialized	50000	19.307 ms	0.0466 ms	0.0121 ms	1.05	0.00	93.7500	1622.51 KB	145.13
MiniExcel	50000	247.927 ms	7.6105 ms	1.1777 ms	13.45	0.06	16000.0000	273792.97 KB	24,490.22
Sylvan	50000	57.325 ms	1.5315 ms	0.3977 ms	3.11	0.02	-	1939.18 KB	173.46

ExcelReader.Benchmarks.RealDataReadBenchmark


BenchmarkDotNet v0.15.8, Linux Ubuntu 24.04.5 LTS (Noble Numbat)
AMD EPYC 9V74 2.60GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 10.0.401
  [Host]     : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v3
  Job-MEHJPP : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v3

IterationCount=5  WarmupCount=1

Method	Mean	Error	StdDev	Ratio	RatioSD	Gen0	Allocated	Alloc Ratio
Xlsx_ExcelReader	97.455 ms	5.7223 ms	1.4861 ms	1.00	0.02	-	17.85 KB	1.00
Xlsx_Sylvan	299.134 ms	4.2308 ms	0.6547 ms	3.07	0.04	-	644.11 KB	36.08
Xlsx_ExcelReader_Materialized	99.167 ms	0.2963 ms	0.0459 ms	1.02	0.01	-	27.32 KB	1.53
Xlsx_ExcelReader_Prefetch	66.285 ms	14.3027 ms	2.2134 ms	0.68	0.02	-	37.61 KB	2.11
Xlsx_ExcelReader_Memory	97.196 ms	1.7916 ms	0.2772 ms	1.00	0.01	-	7 KB	0.39
Xlsx_ExcelReader_Memory_Prefetch	68.778 ms	12.8145 ms	3.3279 ms	0.71	0.03	-	26.97 KB	1.51
Xlsm_ExcelReader	98.463 ms	5.5666 ms	1.4456 ms	1.01	0.02	-	17.85 KB	1.00
Xlsm_Sylvan	300.665 ms	20.8831 ms	5.4233 ms	3.09	0.07	-	644.19 KB	36.09
Xlsm_ExcelReader_Materialized	99.112 ms	0.4993 ms	0.0773 ms	1.02	0.01	-	27.32 KB	1.53
Xlsm_ExcelReader_Prefetch	68.146 ms	18.6265 ms	4.8372 ms	0.70	0.05	-	37.6 KB	2.11
Xlsm_ExcelReader_Memory	95.651 ms	0.1613 ms	0.0250 ms	0.98	0.01	-	7 KB	0.39
Xlsm_ExcelReader_Memory_Prefetch	67.871 ms	12.7634 ms	3.3146 ms	0.70	0.03	-	26.73 KB	1.50
Xlsb_ExcelReader	37.588 ms	0.3347 ms	0.0518 ms	0.39	0.01	-	18.8 KB	1.05
Xlsb_Sylvan	45.339 ms	0.6954 ms	0.1806 ms	0.47	0.01	-	338.55 KB	18.96
Xlsb_ExcelReader_Materialized	40.433 ms	0.4275 ms	0.0662 ms	0.41	0.01	-	28.27 KB	1.58
Xlsb_ExcelReader_Prefetch	22.572 ms	0.5471 ms	0.0847 ms	0.23	0.00	-	38.99 KB	2.18
Xlsb_ExcelReader_Memory	37.640 ms	0.3542 ms	0.0548 ms	0.39	0.01	-	8.69 KB	0.49
Xlsb_ExcelReader_Memory_Prefetch	22.887 ms	0.4101 ms	0.0635 ms	0.23	0.00	-	30.97 KB	1.73
Xls_ExcelReader	15.235 ms	0.1472 ms	0.0228 ms	0.16	0.00	-	11.3 KB	0.63
Xls_Sylvan	27.464 ms	0.0940 ms	0.0244 ms	0.28	0.00	-	185.9 KB	10.41
Xls_ExcelReader_Materialized	17.865 ms	0.1654 ms	0.0256 ms	0.18	0.00	-	20.77 KB	1.16
Xls_ExcelReader_Memory	15.180 ms	0.0230 ms	0.0036 ms	0.16	0.00	-	11.3 KB	0.63
Csv_ExcelReader	8.504 ms	0.0543 ms	0.0084 ms	0.09	0.00	-	1.41 KB	0.08
Csv_Sylvan	7.127 ms	0.0264 ms	0.0041 ms	0.07	0.00	-	40.26 KB	2.26
Csv_ExcelReader_Materialized	31.134 ms	0.2835 ms	0.0439 ms	0.32	0.00	2218.7500	36566.46 KB	2,048.36
Csv_ExcelReader_Memory	8.408 ms	0.2797 ms	0.0726 ms	0.09	0.00	-	1.35 KB	0.08

ExcelReader.Benchmarks.RealDataTypedParseBenchmark


BenchmarkDotNet v0.15.8, Linux Ubuntu 24.04.5 LTS (Noble Numbat)
AMD EPYC 9V74 2.60GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 10.0.401
  [Host]     : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v3
  Job-MEHJPP : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v3

IterationCount=5  WarmupCount=1

Method	Mean	Error	StdDev	Ratio	RatioSD	Gen0	Allocated	Alloc Ratio
Xlsx_ExcelParser	113.56 ms	6.181 ms	1.605 ms	1.00	0.02	400.0000	8.03 MB	1.00
Xlsb_ExcelParser	50.11 ms	0.179 ms	0.028 ms	0.44	0.01	500.0000	8.03 MB	1.00

ExcelReader.Benchmarks.RecordWriteBenchmark


BenchmarkDotNet v0.15.8, Linux Ubuntu 24.04.5 LTS (Noble Numbat)
AMD EPYC 9V74 2.60GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 10.0.401
  [Host]     : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v3
  Job-MEHJPP : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v3

IterationCount=5  WarmupCount=1

Method	Rows	Mean	Error	StdDev	Ratio	Gen0	Gen1	Gen2	Allocated	Alloc Ratio
Xlsx	50000	18.097 ms	0.1981 ms	0.0514 ms	1.00	500.0000	500.0000	500.0000	4.02 MB	1.00
Xlsb	50000	10.735 ms	0.0976 ms	0.0253 ms	0.59	500.0000	500.0000	500.0000	4.02 MB	1.00
Xls	50000	6.434 ms	0.2452 ms	0.0637 ms	0.36	273.4375	273.4375	273.4375	4.03 MB	1.00
Csv	50000	7.226 ms	0.4084 ms	0.0632 ms	0.40	500.0000	500.0000	500.0000	4 MB	1.00
XlsxMapped	50000	20.856 ms	0.0916 ms	0.0238 ms	1.15	500.0000	500.0000	500.0000	4.02 MB	1.00
XlsbMapped	50000	11.545 ms	0.1102 ms	0.0286 ms	0.64	500.0000	500.0000	500.0000	4.02 MB	1.00
CsvMapped	50000	7.999 ms	0.0185 ms	0.0048 ms	0.44	500.0000	500.0000	500.0000	4 MB	1.00

ExcelReader.Benchmarks.StringHeavyReadBenchmark


BenchmarkDotNet v0.15.8, Linux Ubuntu 24.04.5 LTS (Noble Numbat)
AMD EPYC 9V45 2.60GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 10.0.401
  [Host]     : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v4
  Job-MEHJPP : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v4

IterationCount=5  WarmupCount=1

Method	Rows	Mean	Error	StdDev	Ratio	RatioSD	Gen0	Gen1	Gen2	Allocated	Alloc Ratio
Xlsx_ExcelReader	65536	54.46 ms	5.519 ms	1.433 ms	1.00	0.03	-	-	-	2.19 MB	1.00
Xlsx_ExcelReader_Prefetch	65536	37.78 ms	7.914 ms	2.055 ms	0.69	0.04	-	-	-	2.21 MB	1.01
Xlsx_Sylvan	65536	175.72 ms	13.990 ms	3.633 ms	3.23	0.10	666.6667	333.3333	-	17.41 MB	7.96
Xlsx_ExcelReader_Materialized	65536	79.66 ms	9.596 ms	1.485 ms	1.46	0.04	1000.0000	857.1429	285.7143	15.26 MB	6.97
Xlsx_ExcelReader_Materialized_Interned	65536	79.64 ms	1.432 ms	0.222 ms	1.46	0.04	1000.0000	857.1429	285.7143	15.27 MB	6.98
Xlsb_ExcelReader	65536	33.89 ms	3.230 ms	0.500 ms	0.62	0.02	-	-	-	2.19 MB	1.00
Xlsb_ExcelReader_Prefetch	65536	25.51 ms	0.579 ms	0.150 ms	0.47	0.01	-	-	-	2.31 MB	1.06
Xlsb_Sylvan	65536	63.04 ms	13.835 ms	3.593 ms	1.16	0.07	1000.0000	875.0000	250.0000	17.38 MB	7.94
Xlsb_ExcelReader_Materialized	65536	56.86 ms	4.079 ms	1.059 ms	1.04	0.03	1111.1111	1000.0000	333.3333	15.26 MB	6.97
Xlsb_ExcelReader_Materialized_Interned	65536	56.33 ms	4.260 ms	1.106 ms	1.03	0.03	1000.0000	875.0000	250.0000	15.26 MB	6.98
Xlsb_ExcelReader_Memory	65536	33.98 ms	0.638 ms	0.166 ms	0.62	0.02	-	-	-	6.47 MB	2.95

ExcelReader.Benchmarks.WriteBenchmark


BenchmarkDotNet v0.15.8, Linux Ubuntu 24.04.5 LTS (Noble Numbat)
AMD EPYC 9V74 2.60GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 10.0.401
  [Host]     : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v3
  Job-MEHJPP : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v3

IterationCount=5  WarmupCount=1

Method	Rows	Mean	Error	StdDev	Ratio	RatioSD	Gen0	Gen1	Gen2	Allocated	Alloc Ratio
ExcelReaderWriter	50000	17.269 ms	0.1622 ms	0.0251 ms	1.00	0.00	500.0000	500.0000	500.0000	4.02 MB	1.00
ExcelReaderWriterSharedStrings	50000	17.203 ms	0.0920 ms	0.0239 ms	1.00	0.00	500.0000	500.0000	500.0000	4.06 MB	1.01
ExcelReaderWriterPrefetch	50000	14.808 ms	0.6934 ms	0.1073 ms	0.86	0.01	484.3750	484.3750	484.3750	4.03 MB	1.00
ExcelReaderXlsbWriter	50000	10.802 ms	0.4481 ms	0.0693 ms	0.63	0.00	500.0000	500.0000	500.0000	4.02 MB	1.00
ExcelReaderXlsbWriterSharedStrings	50000	10.442 ms	1.7614 ms	0.4574 ms	0.60	0.02	500.0000	500.0000	500.0000	4.06 MB	1.01
ExcelReaderXlsbWriterPrefetch	50000	8.981 ms	0.6658 ms	0.1729 ms	0.52	0.01	484.3750	484.3750	484.3750	4.03 MB	1.00
MiniExcel	50000	99.613 ms	7.6413 ms	1.9844 ms	5.77	0.11	5200.0000	1200.0000	1200.0000	84.89 MB	21.11
SpreadCheetah	50000	21.091 ms	0.2901 ms	0.0753 ms	1.22	0.00	1437.5000	718.7500	718.7500	15.84 MB	3.94

ExcelReader.Benchmarks.WritePathBenchmark


BenchmarkDotNet v0.15.8, Linux Ubuntu 24.04.5 LTS (Noble Numbat)
AMD EPYC 9V74 2.60GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 10.0.401
  [Host]     : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v3
  Job-MEHJPP : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v3

IterationCount=5  WarmupCount=1

Method	Mean	Error	StdDev	Allocated
NativeStrings_Xlsx	27.827 ms	0.0438 ms	0.0114 ms	18264 B
NativeStrings_Csv	7.495 ms	0.0657 ms	0.0102 ms	416 B
ArrowStrings_Xlsx	35.903 ms	0.1817 ms	0.0281 ms	18312 B
StyledRows_Xlsx	9.979 ms	0.1098 ms	0.0170 ms	18448 B

ExcelReader.Benchmarks.XlsReadBenchmark


BenchmarkDotNet v0.15.8, Linux Ubuntu 24.04.5 LTS (Noble Numbat)
AMD EPYC 7763 2.78GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 10.0.401
  [Host]     : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v3
  Job-MEHJPP : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v3

IterationCount=5  WarmupCount=1

Method	Rows	Mean	Error	StdDev	Ratio	Gen0	Gen1	Allocated	Alloc Ratio
ExcelReader	50000	4.821 ms	0.0270 ms	0.0042 ms	1.00	-	-	2.45 KB	1.00
ExcelReaderAsync	50000	5.049 ms	0.0144 ms	0.0022 ms	1.05	-	-	2.52 KB	1.03
Sylvan	50000	8.671 ms	0.0438 ms	0.0068 ms	1.80	93.7500	15.6250	1717.73 KB	700.22

ExcelReader.Benchmarks.XlsWriteBenchmark


BenchmarkDotNet v0.15.8, Linux Ubuntu 24.04.5 LTS (Noble Numbat)
AMD EPYC 9V74 2.60GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 10.0.401
  [Host]     : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v3
  Job-MEHJPP : .NET 10.0.12 (10.0.12, 10.0.1226.42308), X64 RyuJIT x86-64-v3

IterationCount=5  WarmupCount=1

Method	Rows	Mean	Error	StdDev	Ratio	Gen0	Gen1	Gen2	Allocated	Alloc Ratio
XlsWriter	50000	6.499 ms	0.0678 ms	0.0176 ms	1.00	492.1875	492.1875	492.1875	16.03 MB	1.00
XlsxWriter	50000	17.118 ms	0.1269 ms	0.0196 ms	2.63	500.0000	500.0000	500.0000	4.02 MB	0.25

GabrielMarquezMatte merged commit f2e4035 into develop Sep 23, 2026
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dependabot Bot deleted the dependabot/nuget/develop/analyzers-4c74495f42 branch September 23, 2026 20:39

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Bump the analyzers group with 1 update - #120

Bump the analyzers group with 1 update#120
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ExcelReader.Benchmarks.ArrowConversionBenchmark

ExcelReader.Benchmarks.ChunkedParseBenchmark

ExcelReader.Benchmarks.ColdStartBenchmark

ExcelReader.Benchmarks.CsvParallelParseBenchmark

ExcelReader.Benchmarks.CsvParallelVsSepBenchmark

ExcelReader.Benchmarks.CsvParseBenchmark

ExcelReader.Benchmarks.CsvReadBenchmark

ExcelReader.Benchmarks.CsvWriteBenchmark

ExcelReader.Benchmarks.DataReaderBenchmark

ExcelReader.Benchmarks.EncryptedWorkbookBenchmark

ExcelReader.Benchmarks.NativeRowReadBenchmark

ExcelReader.Benchmarks.NativeTypedParseBenchmark

ExcelReader.Benchmarks.ParseBenchmark

ExcelReader.Benchmarks.ReadBenchmark

ExcelReader.Benchmarks.RealDataReadBenchmark

ExcelReader.Benchmarks.RealDataTypedParseBenchmark

ExcelReader.Benchmarks.RecordWriteBenchmark

ExcelReader.Benchmarks.StringHeavyReadBenchmark

ExcelReader.Benchmarks.WriteBenchmark

ExcelReader.Benchmarks.WritePathBenchmark

ExcelReader.Benchmarks.XlsReadBenchmark

ExcelReader.Benchmarks.XlsWriteBenchmark

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Benchmark Results

Failed to run

Moved by at least 10%

ExcelReader.Benchmarks.ArrowConversionBenchmark

ExcelReader.Benchmarks.ChunkedParseBenchmark

ExcelReader.Benchmarks.ColdStartBenchmark

ExcelReader.Benchmarks.CsvParallelParseBenchmark

ExcelReader.Benchmarks.CsvParallelVsSepBenchmark

ExcelReader.Benchmarks.CsvParseBenchmark

ExcelReader.Benchmarks.CsvReadBenchmark

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