Benchmarks for dotnet/runtime#129319 (for @jakobbotsch)

[EgorBot]

Processing benchmark request from PR dotnet/runtime#129319.

Targets: macos15_helix_arm64
Commits: main;PR_129319

• macos15_helix_arm64: live logs

Results will be posted here once they are ready.

[EgorBot]

Results for macos15_helix_arm64

@jakobbotsch

BenchmarkDotNet v0.15.8, macOS Sequoia 15.3.1 (24D70) [Darwin 24.3.0]
Apple M2, 1 CPU, 8 logical and 8 physical cores
.NET SDK 11.0.100-preview.6.26316.109
  [Host]     : .NET 10.0.9 (10.0.9, 10.0.926.27113), Arm64 RyuJIT armv8.0-a

Method	Toolchain	Mean	Error	Ratio
'ArrayPool + Span - foreach (SLOW on .NET 10 and .NET 9)'	PR #129319	632.9 ns	0.68 ns	1.00
'ArrayPool + Span - foreach (SLOW on .NET 10 and .NET 9)'	main	600.4 ns	0.49 ns	0.95
'ArrayPool + Span - for loop (OK on .NET 10 and .NET 9)'	PR #129319	632.6 ns	0.71 ns	1.00
'ArrayPool + Span - for loop (OK on .NET 10 and .NET 9)'	main	600.8 ns	1.48 ns	0.95
'RefStruct + Span field - foreach (SLOW on .NET 10, FAST on .NET 9)'	PR #129319	631.3 ns	0.84 ns	1.00
'RefStruct + Span field - foreach (SLOW on .NET 10, FAST on .NET 9)'	main	599.8 ns	0.63 ns	0.95
'RefStruct + Span field - for loop (OK on .NET 10 and .NET 9)'	PR #129319	601.7 ns	0.55 ns	1.00
'RefStruct + Span field - for loop (OK on .NET 10 and .NET 9)'	main	625.3 ns	0.19 ns	1.04

Full logs