前言

在更新BenchmarkDotNet源码时发现已经发布V0.13.2版本了,主要增加了这些特性:

1. 支持.Net 7
2. 支持NativeAOT
3. 支持.Net Framework 4.8.1(支持ARM)
4. 支持隐藏指定列
5. 显示内存分配百分比
6. 显示进度和预计完成时间
7. 显示硬件指令集信息(如AVX2等)

BenchmarkDotNet v0.13.2新增功能

测试代码

using System;
using BenchmarkDotNet.Attributes;
using BenchmarkDotNet.Columns;

namespace CSharpBenchmarks.MathTest
{
    [DisassemblyDiagnoser(printSource: true, maxDepth: 3)]
    [MemoryDiagnoser]
    // //提示不支持"Currently NativeAOT has no DisassemblyDiagnoser support"
    [SimpleJob(BenchmarkDotNet.Jobs.RuntimeMoniker.NativeAot70)] 
    [HideColumns(Column.Gen2)]  //隐藏GC2代列
    public class RoundTest
    {
        [Params(1.5)]
        public double Value { get; set; }

        [Benchmark(Baseline = true)]
        public double RoundDefault() => Math.Round(Value);
    }
}

BechmarkDotNet显示更多更全的信息

还有对WebAssembly支持的越来越好,输出的信息更多更全,还有显示更多的汇编代码(在测试方法中调用的其他方法显示汇编代码):

//内联后生成的汇编代码,没有方法调用
//CSharpBenchmarks.MathTest.RoundTest.RoundDefault()
//         public double RoundDefault() => Math.Round(Value);
//                                         ^^^^^^^^^^^^^^^^^
       vzeroupper
       vroundsd  xmm0,xmm0,qword ptr[rcx + 8],4
       ret
; Total bytes of code 11

继续在测试方法中调用其他方法(汇编代码):

// net6perf.LinqTest.TakTest.Take()
// int sum = 0;
// ^^^^^^^^^^^^
// for (int i = 0; i < Times; i++)
//     ^^^^^^^^^
//     var array = bytes.Take(5).ToArray();
// ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
// sum += array.Length;
// ^^^^^^^^^^^^^^^^^^^^
// return sum;
//^^^^^^^^^^^push      r14
             push      rdi
       push      rsi
       push      rbp
       push      rbx
       sub       rsp,20
       mov       rsi, rcx
       xor       edi, edi
       xor       ebx, ebx
       cmp       dword ptr [rsi+10],0
       jle near ptr M00_L03
M00_L00:
       mov rbp,[rsi + 8]
       test      rbp, rbp
       je        near ptr M00_L04
       mov       rdx, rbp
       mov       rcx, offset MT_System.Linq.IPartition`1[[System.Int32, System.Private.CoreLib]]

//===========调用IsInstanceOfInterface方法===========
       call qword ptr [System.Runtime.CompilerServices.CastHelpers.IsInstanceOfInterface(Void *, System.Object)]
test rax, rax
       jne       short M00_L01
       mov       rcx, offset MT_System.Linq.Enumerable+ListPartition`1[[System.Int32, System.Private.CoreLib]]
       call CORINFO_HELP_NEWSFAST
       mov       r14, rax
       call      CORINFO_HELP_GETCURRENTMANAGEDTHREADID
       mov       [r14+8],eax
       lea       rcx,[r14 + 18]
       mov       rdx, rbp
       call      CORINFO_HELP_ASSIGN_REF
       xor       ecx, ecx
       mov       [r14+14],ecx
       mov       dword ptr [r14+20],4
       jmp short M00_L02
M00_L01:
       mov rcx, rax
       mov       r11,7FFE65150440
       mov       edx,5
       call      qword ptr [r11]
mov r14, rax
M00_L02:
       mov rcx, r14
       call      qword ptr [System.Linq.Enumerable.ToArray[[System.Int32, System.Private.CoreLib]](System.Collections.Generic.IEnumerable`1 < Int32 >)]
       add edi,[rax + 8]
       inc       ebx
       cmp       ebx,[rsi + 10]
       jl        near ptr M00_L00
M00_L03:
       mov eax, edi
       add       rsp,20
       pop       rbx
       pop       rbp
       pop       rsi
       pop       rdi
       pop       r14
       ret
M00_L04:
       mov ecx,10
       call      qword ptr [7FFE65535780]
int 3
; Total bytes of code 191


//System.Runtime.CompilerServices.CastHelpers.IsInstanceOfInterface(Void *, System.Object)
       test rdx, rdx
       je        short M01_L03
       mov       rax,[rdx]
       movzx     r8d, word ptr [rax+0E]
test r8, r8
       je        short M01_L02
       mov       r9,[rax + 38]
       cmp       r8,4
       jl        short M01_L01
M01_L00:
       cmp[r9],rcx
       je        short M01_L03
       cmp       [r9+8],rcx
       je        short M01_L03
       cmp       [r9+10],rcx
       je        short M01_L03
       cmp       [r9+18],rcx
       je        short M01_L03
       add       r9,20
       add       r8,0FFFFFFFFFFFFFFFC
       cmp       r8,4
       jge       short M01_L00
       test      r8, r8
       je        short M01_L02
M01_L01:
       cmp[r9],rcx
       je        short M01_L03
       add       r9,8
       dec       r8
       test      r8, r8
       jg        short M01_L01
M01_L02:
       test dword ptr [rax],406C0000
       jne       short M01_L04
       xor       edx, edx
M01_L03:
       mov rax, rdx
       ret
M01_L04:
       jmp qword ptr [System.Runtime.CompilerServices.CastHelpers.IsInstance_Helper(Void *, System.Object)]
; Total bytes of code 107

个人能力有限,如果您发现有什么不对,请私信我

如果您觉得对您有用的话,可以点个赞或者加个关注,欢迎大家一起进行技术交流