Benchmarks for #117800 (hamarb123)

[EgorBot]

Processing dotnet/runtime#117800 (comment) command:

Command

-amd -arm -mono --envvars MONO_ENV_OPTIONS:"--interpreter"

using System;
using System.Linq;
using System.Runtime.InteropServices;
using BenchmarkDotNet.Attributes;
using BenchmarkDotNet.Running;

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

public class Bench
{
    public unsafe byte* ptr;
    
    [GlobalSetup]
    public unsafe void Setup()
    {
        ptr = (byte*)NativeMemory.AlignedAlloc(4096, 4096);
        new Random(42).NextBytes(MemoryMarshal.CreateSpan(ref *ptr, 4096));
        MemoryMarshal.CreateSpan(ref *ptr, 4096).Replace<byte>(42, 0x42);
    }
    
    [Benchmark]
    public unsafe bool Test()
    {
        return MemoryMarshal.CreateSpan(ref *ptr, 4096).Contains((byte)42);
    }
}

(EgorBot will reply in this issue)

[EgorBot]

Benchmark results on linux_azure_genoa

BenchmarkDotNet v0.15.0, Linux Ubuntu 24.04.2 LTS (Noble Numbat)
AMD EPYC 9V74, 1 CPU, 8 logical and 4 physical cores
  Job-SFUMUZ : .NET 10.0.0 (42.42.42.42424) using MonoVM, X64 AOT VectorSize=128
  Job-QYNNMP : .NET 10.0.0 (42.42.42.42424) using MonoVM, X64 AOT VectorSize=128
EnvironmentVariables=MONO_ENV_OPTIONS="--interpreter"

Method	Toolchain	Mean	Error	Ratio
Test	Main	3.756 μs	0.0750 μs	1.00
Test	PR	3.746 μs	0.0859 μs	1.00

BDN_Artifacts.zip

cc @hamarb123 (agent_logs.txt). EgorBot manual: link.

[EgorBot]

Benchmark results on linux_azure_cobalt100

BenchmarkDotNet v0.15.0, Linux Ubuntu 24.04.2 LTS (Noble Numbat)
Neoverse-N2, 8 physical cores
  Job-LHQUIY : .NET 10.0.0 (42.42.42.42424) using MonoVM, Arm64 AOT VectorSize=128
  Job-JQRPUS : .NET 10.0.0 (42.42.42.42424) using MonoVM, Arm64 AOT VectorSize=128
EnvironmentVariables=MONO_ENV_OPTIONS="--interpreter"  RatioSD=0.05

Method	Toolchain	Mean	Error	Ratio
Test	Main	3.378 μs	0.0673 μs	1.00
Test	PR	3.335 μs	0.0667 μs	0.99

BDN_Artifacts.zip

cc @hamarb123 (agent_logs.txt). EgorBot manual: link.