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
Stackalloc1	PR #127970	6.567 ns	0.1538 ns	1.00
Stackalloc1	main	1.791 ns	0.0104 ns	0.27
Stackalloc4	PR #127970	6.468 ns	0.1469 ns	1.00
Stackalloc4	main	1.791 ns	0.0169 ns	0.28
Stackalloc6	PR #127970	6.439 ns	0.1472 ns	1.00
Stackalloc6	main	1.787 ns	0.0110 ns	0.28
Stackalloc8	PR #127970	6.405 ns	0.1477 ns	1.00
Stackalloc8	main	1.789 ns	0.0107 ns	0.28
Stackalloc10	PR #127970	6.341 ns	0.1500 ns	1.00
Stackalloc10	main	1.784 ns	0.0138 ns	0.28
Stackalloc16	PR #127970	6.091 ns	0.1382 ns	1.00
Stackalloc16	main	1.783 ns	0.0098 ns	0.29
Stackalloc32	PR #127970	6.699 ns	0.1507 ns	1.00
Stackalloc32	main	6.385 ns	0.0989 ns	0.95
Stackalloc50	PR #127970	5.982 ns	0.4340 ns	1.07
Stackalloc50	main	6.628 ns	0.1512 ns	1.18
Stackalloc100	PR #127970	3.334 ns	0.3233 ns	1.07
Stackalloc100	main	6.046 ns	0.1414 ns	1.94
Stackalloc128	PR #127970	7.129 ns	0.2641 ns	1.02
Stackalloc128	main	6.455 ns	0.1518 ns	0.93
Stackalloc256	PR #127970	8.226 ns	0.1088 ns	1.00
Stackalloc256	main	7.377 ns	0.1695 ns	0.90
Stackalloc500	PR #127970	9.629 ns	0.1611 ns	1.00
Stackalloc500	main	9.789 ns	0.1377 ns	1.02

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
Stackalloc1	PR #127970	1.910 ns	0.0290 ns	1.00
Stackalloc1	main	2.117 ns	0.0251 ns	1.11
Stackalloc4	PR #127970	1.906 ns	0.0292 ns	1.00
Stackalloc4	main	2.120 ns	0.0186 ns	1.11
Stackalloc6	PR #127970	1.910 ns	0.0220 ns	1.00
Stackalloc6	main	2.141 ns	0.0303 ns	1.12
Stackalloc8	PR #127970	1.889 ns	0.0218 ns	1.00
Stackalloc8	main	2.126 ns	0.0291 ns	1.13
Stackalloc10	PR #127970	1.899 ns	0.0360 ns	1.00
Stackalloc10	main	2.159 ns	0.0099 ns	1.14
Stackalloc16	PR #127970	1.897 ns	0.0146 ns	1.00
Stackalloc16	main	2.158 ns	0.0571 ns	1.14
Stackalloc32	PR #127970	1.908 ns	0.0160 ns	1.00
Stackalloc32	main	2.152 ns	0.0293 ns	1.13
Stackalloc50	PR #127970	1.909 ns	0.0170 ns	1.00
Stackalloc50	main	2.365 ns	0.0321 ns	1.24
Stackalloc100	PR #127970	1.929 ns	0.0246 ns	1.00
Stackalloc100	main	3.245 ns	0.0859 ns	1.68
Stackalloc128	PR #127970	2.103 ns	0.0232 ns	1.00
Stackalloc128	main	3.211 ns	0.0877 ns	1.53
Stackalloc256	PR #127970	1.902 ns	0.0276 ns	1.00
Stackalloc256	main	4.881 ns	0.1204 ns	2.57
Stackalloc500	PR #127970	1.894 ns	0.0167 ns	1.00
Stackalloc500	main	7.002 ns	0.1408 ns	3.70