[Perf 23%] System.Drawing.Tests.Perf_Color.GetBrightness

[performanceautofiler]

Run Information

Architecture	x64
OS	ubuntu 18.04
Baseline	7601d44ca06fc977c4a3c7a33c1fc864f8f5ad78
Compare	dd23c81e3c23866164a62b16311bbc08c00e2643

Regressions in System.Drawing.Tests.Perf_Color

Benchmark	Baseline	Test	Test/Base	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
GetBrightness	1.13 μs	873.58 ns	0.77

Historical Data in Reporting System

Repro

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f netcoreapp5.0 --filter 'System.Drawing.Tests.Perf_Color*'

Histogram

System.Drawing.Tests.Perf_Color.GetBrightness

[ 806.838 ;  885.541) | @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
[ 885.541 ;  935.432) | @
[ 935.432 ; 1014.134) | @@@@@@@@@@@@@@@@@
[1014.134 ; 1097.032) | 
[1097.032 ; 1178.822) | @@@@@@@@@@@@@@@@@@@@@@@@@@

Docs

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