EgorBot for EgorBo in #111561

[EgorBot]

Processing dotnet/runtime#111561 (comment) command:

Command

-arm -amd -profiler

using System.Runtime.CompilerServices;
using BenchmarkDotNet.Attributes;

public class Benchmark
{
    [Benchmark]
    public void ReturnBufferWB() => _ = Test(default);

    [MethodImpl(MethodImplOptions.NoInlining)]
    static MyStruct Test(MyStruct ms) => ms;
}

public struct MyStruct
{
    public object Fld1;
    public object Fld2;
    public object Fld3;
}

(EgorBot will reply in this issue)

[EgorBot]

Benchmark results on linux_azure_cobalt100

BenchmarkDotNet v0.14.0, Ubuntu 24.04.1 LTS (Noble Numbat)
azure_cobalt100
  Job-NOCUQC : .NET 10.0.0 (42.42.42.42424), Arm64 RyuJIT AdvSIMD
  Job-PNYTXP : .NET 10.0.0 (42.42.42.42424), Arm64 RyuJIT AdvSIMD

Method	Toolchain	Mean	Error	Ratio
ReturnBufferWB	Main	3.721 ns	0.0039 ns	1.00
ReturnBufferWB	PR	3.715 ns	0.0056 ns	1.00

BDN_Artifacts.zip

Profiling for Benchmark_ReturnBufferWB:

SVG flamegraph: Main vs PR 🔥
Speedscope flamegraph: Main vs PR
Hot asm code: Main vs PR
HW counters: Main vs PR

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