Benchmarks for #123540 (stephentoub)

[EgorBot]

Processing dotnet/runtime#123540 (comment) command:

Command

-arm -x64

using BenchmarkDotNet.Attributes;
using BenchmarkDotNet.Running;

BenchmarkSwitcher.FromAssembly(typeof(Bench).Assembly).Run(args);

[MemoryDiagnoser]
public class Bench
{
    [Benchmark]
    public Guid New() => Guid.NewGuid();
}

(EgorBot will reply in this issue)

[EgorBot]

Benchmark results on linux_azure_genoa

BenchmarkDotNet v0.15.0, Linux Ubuntu 24.04.3 LTS (Noble Numbat)
AMD EPYC 9V74, 1 CPU, 8 logical and 4 physical cores
  Job-ZQMWBY : .NET 11.0.0 (42.42.42.42424), X64 RyuJIT AVX-512F+CD+BW+DQ+VL+VBMI
  Job-IMIXOY : .NET 11.0.0 (42.42.42.42424), X64 RyuJIT AVX-512F+CD+BW+DQ+VL+VBMI

Method	Toolchain	Mean	Error	Ratio	Allocated	Alloc Ratio
New	Main	864.3 ns	4.38 ns	1.00	-	NA
New	PR	760.8 ns	1.93 ns	0.88	-	NA

Artifacts.zip

cc @stephentoub (agent_logs.txt). EgorBot manual: link.

[EgorBot]

Benchmark results on linux_azure_cobalt100

BenchmarkDotNet v0.15.0, Linux Ubuntu 24.04.3 LTS (Noble Numbat)
Neoverse-N2, 8 physical cores
  Job-VEPCOD : .NET 11.0.0 (42.42.42.42424), Arm64 RyuJIT AdvSIMD
  Job-XIRAZA : .NET 11.0.0 (42.42.42.42424), Arm64 RyuJIT AdvSIMD

Method	Toolchain	Mean	Error	Ratio	Allocated	Alloc Ratio
New	Main	389.9 ns	0.80 ns	1.00	-	NA
New	PR	338.4 ns	1.83 ns	0.87	-	NA

Artifacts.zip

cc @stephentoub (agent_logs.txt). EgorBot manual: link.