EgorBot for EgorBo in #109014

[EgorBot]

Processing dotnet/runtime#109014 (comment) command:

Command

-arm64 -profiler -nonativepgo -perf_events ld_align_lat

using BenchmarkDotNet.Attributes;

public class Bench
{
    static object[] Src = Enumerable.Range(0, 10).Select(i => (object)i).ToArray();
    static object[] Dst = new object[128];

    [Benchmark]public void CopyObjects10() => Src.AsSpan().CopyTo(Dst);
}

(EgorBot will reply in this issue)

[EgorBot]

Benchmark results on Arm64

BenchmarkDotNet v0.14.0, Ubuntu 24.04 LTS (Noble Numbat)
Arm64
  Job-TPTPUM : .NET 10.0.0 (42.42.42.42424), Arm64 RyuJIT AdvSIMD
  Job-WVHOZW : .NET 10.0.0 (42.42.42.42424), Arm64 RyuJIT AdvSIMD

Method	Toolchain	Mean	Error	Ratio
CopyObjects10	Main	7.832 ns	0.0056 ns	1.00
CopyObjects10	PR	8.712 ns	0.0006 ns	1.11

BDN_Artifacts.zip

Profile for Bench_CopyObjects10:

Flame graphs: Main vs PR 🔥
Speedscope: Main vs PR
Hot asm: Main vs PR
Hot functions: Main vs PR
Counters: Main vs PR

[EgorBot]

cc @EgorBo (logs)