Benchmarks for dotnet/runtime#127970 (for @EgorBo)

[EgorBot]

Processing benchmark request from PR dotnet/runtime#127970.

Targets: ubuntu24_azure_turin, macos26_helix_arm64
Commits: main;PR_127970

• ubuntu24_azure_turin: live logs
• macos26_helix_arm64: live logs

Results will be posted here once they are ready.

[EgorBot]

Results for macos26_helix_arm64

@EgorBo

BenchmarkDotNet v0.15.8, macOS Sequoia 15.4.1 (24E263) [Darwin 24.4.0]
Apple M4, 1 CPU, 10 logical and 10 physical cores
.NET SDK 11.0.100-preview.5.26257.113
  [Host]     : .NET 10.0.7 (10.0.7, 10.0.726.21808), Arm64 RyuJIT armv8.0-a

Method	Toolchain	Mean	Error	Ratio
Stackalloc32	PR #127970	6.955 ns	0.1063 ns	1.00
Stackalloc32	main	6.373 ns	0.1431 ns	0.92
Stackalloc40	PR #127970	2.049 ns	0.0089 ns	1.00
Stackalloc40	main	6.626 ns	0.1514 ns	3.23
Stackalloc50	PR #127970	2.881 ns	0.0473 ns	1.00
Stackalloc50	main	6.692 ns	0.0899 ns	2.32
Stackalloc64	PR #127970	2.884 ns	0.0640 ns	1.00
Stackalloc64	main	6.578 ns	0.1343 ns	2.28
Stackalloc128	PR #127970	7.432 ns	0.0731 ns	1.00
Stackalloc128	main	6.499 ns	0.1536 ns	0.87
Stackalloc200	PR #127970	3.880 ns	0.1009 ns	1.00
Stackalloc200	main	7.875 ns	0.1963 ns	2.03
Stackalloc256	PR #127970	8.262 ns	0.0603 ns	1.00
Stackalloc256	main	7.359 ns	0.1696 ns	0.89
Stackalloc512	PR #127970	7.327 ns	0.0415 ns	1.00
Stackalloc512	main	9.849 ns	0.1963 ns	1.34
Stackalloc1024	PR #127970	12.662 ns	0.2743 ns	1.00
Stackalloc1024	main	16.031 ns	0.0379 ns	1.27
Stackalloc16384	PR #127970	142.486 ns	2.8469 ns	1.00
Stackalloc16384	main	240.281 ns	0.1089 ns	1.69
Stackalloc524288	PR #127970	6,011.170 ns	445.3377 ns	1.06
Stackalloc524288	main	7,454.066 ns	4.4001 ns	1.31

Full logs

[EgorBot]

Results for ubuntu24_azure_turin

@EgorBo

BenchmarkDotNet v0.15.8, Linux Ubuntu 24.04.4 LTS (Noble Numbat)
AMD EPYC 9V45 2.60GHz, 1 CPU, 8 logical and 4 physical cores
.NET SDK 11.0.100-preview.5.26257.113
  [Host]     : .NET 10.0.7 (10.0.7, 10.0.726.21808), X64 RyuJIT x86-64-v4

Method	Toolchain	Mean	Error	Ratio
Stackalloc32	PR #127970	2.021 ns	0.0075 ns	1.00
Stackalloc32	main	2.025 ns	0.0070 ns	1.00
Stackalloc40	PR #127970	1.802 ns	0.0065 ns	1.00
Stackalloc40	main	2.258 ns	0.0113 ns	1.25
Stackalloc50	PR #127970	1.791 ns	0.0072 ns	1.00
Stackalloc50	main	2.456 ns	0.0510 ns	1.37
Stackalloc64	PR #127970	1.794 ns	0.0043 ns	1.00
Stackalloc64	main	2.397 ns	0.0690 ns	1.34
Stackalloc128	PR #127970	1.799 ns	0.0055 ns	1.00
Stackalloc128	main	3.184 ns	0.0371 ns	1.77
Stackalloc200	PR #127970	1.802 ns	0.0066 ns	1.00
Stackalloc200	main	4.071 ns	0.1038 ns	2.26
Stackalloc256	PR #127970	1.803 ns	0.0090 ns	1.00
Stackalloc256	main	4.431 ns	0.1052 ns	2.46
Stackalloc512	PR #127970	1.811 ns	0.0114 ns	1.00
Stackalloc512	main	6.813 ns	0.1583 ns	3.76
Stackalloc1024	PR #127970	5.661 ns	0.1078 ns	1.00
Stackalloc1024	main	13.733 ns	0.1010 ns	2.43
Stackalloc16384	PR #127970	97.335 ns	0.0454 ns	1.00
Stackalloc16384	main	240.096 ns	0.5475 ns	2.47
Stackalloc524288	PR #127970	2,895.879 ns	1.2357 ns	1.00
Stackalloc524288	main	7,358.205 ns	55.9025 ns	2.54

Full logs