Perf regression: endpoint, fortunes_dapper, mapaction, mapaction

[pr-benchmarks]

Scenario	Environment	Date	Old RPS	New RPS	Change	Deviation	StDev	Dependencies
endpoint	Plaintext Endpoint aspnet-citrine-amd	07/20/2021 08:17:14	6,815,505	5,863,715	-13.88 % (-945,943) 👎	-8.28 σ	114,201.94	Changes Name Version Diff Benchmarks.dll 1.0.0 -> 1.0.0 aspnet/Benchmarks@d662bb8...bf3490f System.Runtime.CompilerServices.Unsafe.dll 6.0.0-rc.1.21369.4 -> 6.0.0-rc.1.21369.14 n/a Microsoft.AspNetCore.App 6.0.0-rc.1.21369.3 -> 6.0.0-rc.1.21369.15 4af283a...e2acbb9 Microsoft.NETCore.App 6.0.0-rc.1.21369.4 -> 6.0.0-rc.1.21369.14 dotnet/runtime@d05950b...bd35632
fortunes_dapper [Fixed]	Fortunes Dapper aspnet-citrine-amd	07/20/2021 08:40:52	279,054	277,135	-4.08 % (-11,372) 👎	-2.00 σ	5,685.80	Changes Name Version Diff Benchmarks.dll 1.0.0 -> 1.0.0 aspnet/Benchmarks@d662bb8...bf3490f System.Runtime.CompilerServices.Unsafe.dll 6.0.0-rc.1.21369.5 -> 6.0.0-rc.1.21369.14 n/a Microsoft.AspNetCore.App 6.0.0-rc.1.21369.3 -> 6.0.0-rc.1.21369.15 4af283a...e2acbb9 Microsoft.NETCore.App 6.0.0-rc.1.21369.5 -> 6.0.0-rc.1.21369.14 dotnet/runtime@e0024e2...bd35632
mapaction	Plaintext MapAction aspnet-citrine-lin	07/20/2021 08:04:19	3,315,381	3,128,047	-8.20 % (-271,843) 👎	-5.07 σ	53,605.71	Changes Name Version Diff System.Runtime.CompilerServices.Unsafe.dll 6.0.0-rc.1.21369.4 -> 6.0.0-rc.1.21369.14 n/a MapAction.dll 1.0.0 -> 1.0.0 aspnet/Benchmarks@d662bb8...bf3490f Microsoft.AspNetCore.App 6.0.0-rc.1.21369.3 -> 6.0.0-rc.1.21369.15 4af283a...e2acbb9 Microsoft.NETCore.App 6.0.0-rc.1.21369.4 -> 6.0.0-rc.1.21369.14 dotnet/runtime@d05950b...bd35632
mapaction	Plaintext MapAction aspnet-citrine-amd	07/20/2021 08:16:24	5,856,499	5,337,760	-8.12 % (-475,552) 👎	-7.01 σ	67,805.45	Changes Name Version Diff MapAction.dll 1.0.0 -> 1.0.0 aspnet/Benchmarks@d662bb8...bf3490f System.Runtime.CompilerServices.Unsafe.dll 6.0.0-rc.1.21369.4 -> 6.0.0-rc.1.21369.14 n/a Microsoft.AspNetCore.App 6.0.0-rc.1.21369.3 -> 6.0.0-rc.1.21369.15 4af283a...e2acbb9 Microsoft.NETCore.App 6.0.0-rc.1.21369.4 -> 6.0.0-rc.1.21369.14 dotnet/runtime@d05950b...bd35632
plaintext	Plaintext aspnet-citrine-amd	07/20/2021 08:14:46	7,165,572	5,820,619	-19.63 % (-1,406,785) 👎	-17.51 σ	80,346.59	Changes Name Version Diff Benchmarks.dll 1.0.0 -> 1.0.0 aspnet/Benchmarks@d662bb8...bf3490f System.Runtime.CompilerServices.Unsafe.dll 6.0.0-rc.1.21369.4 -> 6.0.0-rc.1.21369.14 n/a Microsoft.AspNetCore.App 6.0.0-rc.1.21369.3 -> 6.0.0-rc.1.21369.15 4af283a...e2acbb9 Microsoft.NETCore.App 6.0.0-rc.1.21369.4 -> 6.0.0-rc.1.21369.14 dotnet/runtime@d05950b...bd35632
plaintext_nodejs [Fixed]	NodeJS Plaintext aspnet-citrine-lin	07/19/2021 23:41:25	179,264	156,712	-14.76 % (-26,462) 👎	-2.85 σ	9,300.40	Changes Name Version Diff

@sebastienros

[davidfowl]

Phew big regression on the lazy socket read. Will need to find ways to optimize there.

cc @adityamandaleeka @halter73 @shirhatti

[halter73]

Why did Node.js also regress?

[davidfowl]

They must have changed to use Kestrel