[Perf] Changes at 7/2/2021 3:43:52 PM

[performanceautofiler]

Run Information

Architecture	x64
OS	Windows 10.0.19042
Baseline	4c92aef2b08f9c4374c520e7e664a44f1ad8ce56
Compare	96ef64d2ed65fb46d394f52d1e50d7a94c6bca71
Diff	Diff

Improvemnts in System.IO.Tests.Perf_FileStream

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
Flush - Duration of single invocation	8.35 ms	6.64 ms	0.79	0.21	False
Read - Duration of single invocation	1.92 ms	1.52 ms	0.79	0.06	True
Write - Duration of single invocation	267.90 ms	220.69 ms	0.82	0.12	True
Read - Duration of single invocation	36.70 μs	24.92 μs	0.68	0.17	True
ReadByte - Duration of single invocation	39.14 μs	31.69 μs	0.81	0.09	False
Write_NoBuffering - Duration of single invocation	1.04 ms	906.35 μs	0.87	0.05	True
Write - Duration of single invocation	2.75 ms	2.31 ms	0.84	0.10	True
Read_NoBuffering - Duration of single invocation	519.45 μs	405.92 μs	0.78	0.06	True
Read - Duration of single invocation	208.38 ms	167.44 ms	0.80	0.02	True
Write - Duration of single invocation	2.82 ms	2.33 ms	0.82	0.08	True
Read - Duration of single invocation	1.91 ms	1.47 ms	0.77	0.06	True
Write_NoBuffering - Duration of single invocation	96.68 ms	84.52 ms	0.87	0.18	False
Read_NoBuffering - Duration of single invocation	63.34 ms	53.87 ms	0.85	0.02	True

Historical Data in Reporting System

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f netcoreapp5.0 --filter 'System.IO.Tests.Perf_FileStream*'

Payloads

Baseline
Compare

Histogram

System.IO.Tests.Perf_FileStream.Flush(fileSize: 1024, options: Asynchronous)

System.IO.Tests.Perf_FileStream.Read(fileSize: 1048576, userBufferSize: 512, options: Asynchronous)

System.IO.Tests.Perf_FileStream.Write(fileSize: 104857600, userBufferSize: 4096, options: Asynchronous)

System.IO.Tests.Perf_FileStream.Read(fileSize: 1024, userBufferSize: 1024, options: Asynchronous)

System.IO.Tests.Perf_FileStream.ReadByte(fileSize: 1024, options: Asynchronous)

System.IO.Tests.Perf_FileStream.Write_NoBuffering(fileSize: 1048576, userBufferSize: 16384, options: Asynchronous)

System.IO.Tests.Perf_FileStream.Write(fileSize: 1048576, userBufferSize: 4096, options: Asynchronous)

System.IO.Tests.Perf_FileStream.Read_NoBuffering(fileSize: 1048576, userBufferSize: 16384, options: Asynchronous)

System.IO.Tests.Perf_FileStream.Read(fileSize: 104857600, userBufferSize: 4096, options: Asynchronous)

System.IO.Tests.Perf_FileStream.Write(fileSize: 1048576, userBufferSize: 512, options: Asynchronous)

System.IO.Tests.Perf_FileStream.Read(fileSize: 1048576, userBufferSize: 4096, options: Asynchronous)

System.IO.Tests.Perf_FileStream.Write_NoBuffering(fileSize: 104857600, userBufferSize: 16384, options: Asynchronous)

System.IO.Tests.Perf_FileStream.Read_NoBuffering(fileSize: 104857600, userBufferSize: 16384, options: Asynchronous)

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

[DrewScoggins]

dotnet/runtime#54266