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alexandrnikitin/Program.cs

Last active November 23, 2015 18:19
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Generic performance
Raw
Program.cs
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
namespace PerformanceProblem
{
public class Program
{
public static void Main()
{
Console.ReadKey();
Measure(new DerivedClass());
Measure(new BaseClass<object>());
}
private static void Measure(BaseClass<object> baseClass)
{
var sw = Stopwatch.StartNew();
baseClass.Run();
sw.Stop();
Console.WriteLine(sw.ElapsedMilliseconds);
}
}
public class DerivedClass : BaseClass<object>
{
}
public class BaseClass<T>
{
private List<T> _list = new List<T>();
public BaseClass()
{
Enumerable.Empty<T>();
}
public void Run()
{
for (var i = 0; i < 8000000; i++)
{
if (_list.Any())
//if (_list.Any(_ => true))
{
return;
}
}
}
}
}
Raw
x64LegacyJIT.asm
0:000> !u eip
Normal JIT generated code
PerformanceProblem.BaseClass`1[[System.__Canon, mscorlib]].Run()
Begin 00007ffc8c2e0bf0, size 48
*** WARNING: Unable to verify checksum for ConsoleApplication1.exe
C:\temp\trace\ConsoleApplication1\ConsoleApplication1\Program.cs @ 44:
00007ffc`8c2e0bf0 53 push rbx
00007ffc`8c2e0bf1 56 push rsi
00007ffc`8c2e0bf2 57 push rdi
00007ffc`8c2e0bf3 4883ec30 sub rsp,30h
00007ffc`8c2e0bf7 488bf1 mov rsi,rcx
00007ffc`8c2e0bfa 4889742420 mov qword ptr [rsp+20h],rsi
>>> 00007ffc`8c2e0bff 33ff xor edi,edi
C:\temp\trace\ConsoleApplication1\ConsoleApplication1\Program.cs @ 46:
00007ffc`8c2e0c01 488b5e08 mov rbx,qword ptr [rsi+8]
00007ffc`8c2e0c05 488d15d4110400 lea rdx,[00007ffc`8c321de0]
00007ffc`8c2e0c0c 488b0e mov rcx,qword ptr [rsi]
00007ffc`8c2e0c0f e81c8f685f call clr!DllCanUnloadNowInternal+0x32c90 (00007ffc`eb969b30) (JitHelp: CORINFO_HELP_RUNTIMEHANDLE_CLASS)
00007ffc`8c2e0c14 488bd3 mov rdx,rbx
00007ffc`8c2e0c17 488bc8 mov rcx,rax
*** WARNING: Unable to verify checksum for C:\WINDOWS\assembly\NativeImages_v4.0.30319_64\System.Core\205e1980e1a8e9d676d162cd47ee9e45\System.Core.ni.dll
*** ERROR: Module load completed but symbols could not be loaded for C:\WINDOWS\assembly\NativeImages_v4.0.30319_64\System.Core\205e1980e1a8e9d676d162cd47ee9e45\System.Core.ni.dll
00007ffc`8c2e0c1a e821d9cc5c call System_Core_ni+0x2be540 (00007ffc`e8fae540) (System.Linq.Enumerable.Any[[System.__Canon, mscorlib]](System.Collections.Generic.IEnumerable`1<System.__Canon>), mdToken: 0000000006000732)
00007ffc`8c2e0c1f 0fb6c8 movzx ecx,al
00007ffc`8c2e0c22 85c9 test ecx,ecx
00007ffc`8c2e0c24 750a jne 00007ffc`8c2e0c30
C:\temp\trace\ConsoleApplication1\ConsoleApplication1\Program.cs @ 44:
00007ffc`8c2e0c26 ffc7 inc edi
00007ffc`8c2e0c28 81ff00127a00 cmp edi,7A1200h
00007ffc`8c2e0c2e 7cd1 jl 00007ffc`8c2e0c01
00007ffc`8c2e0c30 4883c430 add rsp,30h
00007ffc`8c2e0c34 5f pop rdi
00007ffc`8c2e0c35 5e pop rsi
00007ffc`8c2e0c36 5b pop rbx
00007ffc`8c2e0c37 c3 ret
Raw
x64RyuJIT-complex.asm
0:000> !U eip
Normal JIT generated code
PerformanceProblem.BaseClass`1[[System.__Canon, mscorlib]].Run()
Begin 00007ffc8c2f0b00, size f3
*** WARNING: Unable to verify checksum for ConsoleApplication1.exe
C:\temp\trace\ConsoleApplication1\ConsoleApplication1\Program.cs @ 44:
00007ffc`8c2f0b00 4157 push r15
00007ffc`8c2f0b02 4156 push r14
00007ffc`8c2f0b04 4155 push r13
00007ffc`8c2f0b06 4154 push r12
00007ffc`8c2f0b08 57 push rdi
00007ffc`8c2f0b09 56 push rsi
00007ffc`8c2f0b0a 55 push rbp
00007ffc`8c2f0b0b 53 push rbx
00007ffc`8c2f0b0c 4883ec28 sub rsp,28h
00007ffc`8c2f0b10 48894c2420 mov qword ptr [rsp+20h],rcx
00007ffc`8c2f0b15 488bf1 mov rsi,rcx
>>> 00007ffc`8c2f0b18 33ff xor edi,edi
00007ffc`8c2f0b1a 488b1e mov rbx,qword ptr [rsi]
00007ffc`8c2f0b1d 488bcb mov rcx,rbx
00007ffc`8c2f0b20 48ba181e338cfc7f0000 mov rdx,7FFC8C331E18h
00007ffc`8c2f0b2a e80190675f call clr!DllCanUnloadNowInternal+0x32c90 (00007ffc`eb969b30) (JitHelp: CORINFO_HELP_RUNTIMEHANDLE_CLASS)
00007ffc`8c2f0b2f 488be8 mov rbp,rax
C:\temp\trace\ConsoleApplication1\ConsoleApplication1\Program.cs @ 46:
00007ffc`8c2f0b32 4c8b7608 mov r14,qword ptr [rsi+8]
00007ffc`8c2f0b36 488bcd mov rcx,rbp
00007ffc`8c2f0b39 e80e9f675f call clr!DllCanUnloadNowInternal+0x33bac (00007ffc`eb96aa4c) (JitHelp: CORINFO_HELP_GETGENERICS_GCSTATIC_BASE)
00007ffc`8c2f0b3e 4c8bf8 mov r15,rax
00007ffc`8c2f0b41 4d8b6708 mov r12,qword ptr [r15+8]
00007ffc`8c2f0b45 4d85e4 test r12,r12
00007ffc`8c2f0b48 7555 jne 00007ffc`8c2f0b9f
00007ffc`8c2f0b4a 488bcb mov rcx,rbx
00007ffc`8c2f0b4d 48ba981f338cfc7f0000 mov rdx,7FFC8C331F98h
00007ffc`8c2f0b57 e8d48f675f call clr!DllCanUnloadNowInternal+0x32c90 (00007ffc`eb969b30) (JitHelp: CORINFO_HELP_RUNTIMEHANDLE_CLASS)
00007ffc`8c2f0b5c 488bc8 mov rcx,rax
00007ffc`8c2f0b5f e8fc38645f call clr+0x4460 (00007ffc`eb934460) (JitHelp: CORINFO_HELP_NEWSFAST)
00007ffc`8c2f0b64 4c8be0 mov r12,rax
00007ffc`8c2f0b67 4d8b2f mov r13,qword ptr [r15]
00007ffc`8c2f0b6a 4d85ed test r13,r13
00007ffc`8c2f0b6d 7508 jne 00007ffc`8c2f0b77
00007ffc`8c2f0b6f 498bcc mov rcx,r12
*** WARNING: Unable to verify checksum for C:\WINDOWS\assembly\NativeImages_v4.0.30319_64\mscorlib\dfd75630ade67ae60abbed1c6429af70\mscorlib.ni.dll
*** ERROR: Module load completed but symbols could not be loaded for C:\WINDOWS\assembly\NativeImages_v4.0.30319_64\mscorlib\dfd75630ade67ae60abbed1c6429af70\mscorlib.ni.dll
00007ffc`8c2f0b72 e8a98dd45e call mscorlib_ni+0xcd9920 (00007ffc`eb039920) (System.MulticastDelegate.ThrowNullThisInDelegateToInstance(), mdToken: 0000000006000616)
00007ffc`8c2f0b77 498d4c2408 lea rcx,[r12+8]
00007ffc`8c2f0b7c 498bd5 mov rdx,r13
00007ffc`8c2f0b7f e88c09645f call clr+0x1510 (00007ffc`eb931510) (JitHelp: CORINFO_HELP_ASSIGN_REF)
00007ffc`8c2f0b84 48baa8022f8cfc7f0000 mov rdx,7FFC8C2F02A8h
00007ffc`8c2f0b8e 4989542418 mov qword ptr [r12+18h],rdx
00007ffc`8c2f0b93 498d4f08 lea rcx,[r15+8]
00007ffc`8c2f0b97 498bd4 mov rdx,r12
00007ffc`8c2f0b9a e87109645f call clr+0x1510 (00007ffc`eb931510) (JitHelp: CORINFO_HELP_ASSIGN_REF)
00007ffc`8c2f0b9f 488bcb mov rcx,rbx
00007ffc`8c2f0ba2 48ba581e338cfc7f0000 mov rdx,7FFC8C331E58h
00007ffc`8c2f0bac e87f8f675f call clr!DllCanUnloadNowInternal+0x32c90 (00007ffc`eb969b30) (JitHelp: CORINFO_HELP_RUNTIMEHANDLE_CLASS)
00007ffc`8c2f0bb1 488bc8 mov rcx,rax
00007ffc`8c2f0bb4 498bd6 mov rdx,r14
00007ffc`8c2f0bb7 4d8bc4 mov r8,r12
*** WARNING: Unable to verify checksum for C:\WINDOWS\assembly\NativeImages_v4.0.30319_64\System.Core\205e1980e1a8e9d676d162cd47ee9e45\System.Core.ni.dll
*** ERROR: Module load completed but symbols could not be loaded for C:\WINDOWS\assembly\NativeImages_v4.0.30319_64\System.Core\205e1980e1a8e9d676d162cd47ee9e45\System.Core.ni.dll
00007ffc`8c2f0bba e841eacb5c call System_Core_ni+0x2bf600 (00007ffc`e8faf600) (System.Linq.Enumerable.Any[[System.__Canon, mscorlib]](System.Collections.Generic.IEnumerable`1<System.__Canon>, System.Func`2<System.__Canon,Boolean>), mdToken: 0000000006000733)
00007ffc`8c2f0bbf 84c0 test al,al
00007ffc`8c2f0bc1 7411 je 00007ffc`8c2f0bd4
C:\temp\trace\ConsoleApplication1\ConsoleApplication1\Program.cs @ 55:
00007ffc`8c2f0bc3 4883c428 add rsp,28h
00007ffc`8c2f0bc7 5b pop rbx
00007ffc`8c2f0bc8 5d pop rbp
00007ffc`8c2f0bc9 5e pop rsi
00007ffc`8c2f0bca 5f pop rdi
00007ffc`8c2f0bcb 415c pop r12
00007ffc`8c2f0bcd 415d pop r13
00007ffc`8c2f0bcf 415e pop r14
00007ffc`8c2f0bd1 415f pop r15
00007ffc`8c2f0bd3 c3 ret
C:\temp\trace\ConsoleApplication1\ConsoleApplication1\Program.cs @ 44:
00007ffc`8c2f0bd4 ffc7 inc edi
00007ffc`8c2f0bd6 81ff00127a00 cmp edi,7A1200h
00007ffc`8c2f0bdc 0f8c50ffffff jl 00007ffc`8c2f0b32
C:\temp\trace\ConsoleApplication1\ConsoleApplication1\Program.cs @ 55:
00007ffc`8c2f0be2 4883c428 add rsp,28h
00007ffc`8c2f0be6 5b pop rbx
00007ffc`8c2f0be7 5d pop rbp
00007ffc`8c2f0be8 5e pop rsi
00007ffc`8c2f0be9 5f pop rdi
00007ffc`8c2f0bea 415c pop r12
00007ffc`8c2f0bec 415d pop r13
00007ffc`8c2f0bee 415e pop r14
00007ffc`8c2f0bf0 415f pop r15
00007ffc`8c2f0bf2 c3 ret
Raw
x64RyuJIT.asm
0:000> !U eip
Normal JIT generated code
PerformanceProblem.BaseClass`1[[System.__Canon, mscorlib]].Run()
Begin 00007ffc8c2e0b00, size 50
C:\temp\trace\ConsoleApplication1\ConsoleApplication1\Program.cs @ 44:
00007ffc`8c2e0b00 57 push rdi
00007ffc`8c2e0b01 56 push rsi
00007ffc`8c2e0b02 53 push rbx
00007ffc`8c2e0b03 4883ec30 sub rsp,30h
00007ffc`8c2e0b07 48894c2428 mov qword ptr [rsp+28h],rcx
00007ffc`8c2e0b0c 488bf1 mov rsi,rcx
>>> 00007ffc`8c2e0b0f 33ff xor edi,edi
00007ffc`8c2e0b11 488b0e mov rcx,qword ptr [rsi]
00007ffc`8c2e0b14 48ba281c328cfc7f0000 mov rdx,7FFC8C321C28h
00007ffc`8c2e0b1e e80d90685f call clr!DllCanUnloadNowInternal+0x32c90 (00007ffc`eb969b30) (JitHelp: CORINFO_HELP_RUNTIMEHANDLE_CLASS)
00007ffc`8c2e0b23 488bd8 mov rbx,rax
C:\temp\trace\ConsoleApplication1\ConsoleApplication1\Program.cs @ 46:
00007ffc`8c2e0b26 488bcb mov rcx,rbx
00007ffc`8c2e0b29 488b5608 mov rdx,qword ptr [rsi+8]
00007ffc`8c2e0b2d e80edacc5c call System_Core_ni+0x2be540 (00007ffc`e8fae540) (System.Linq.Enumerable.Any[[System.__Canon, mscorlib]](System.Collections.Generic.IEnumerable`1<System.__Canon>), mdToken: 0000000006000732)
00007ffc`8c2e0b32 84c0 test al,al
00007ffc`8c2e0b34 7408 je 00007ffc`8c2e0b3e
C:\temp\trace\ConsoleApplication1\ConsoleApplication1\Program.cs @ 55:
00007ffc`8c2e0b36 4883c430 add rsp,30h
00007ffc`8c2e0b3a 5b pop rbx
00007ffc`8c2e0b3b 5e pop rsi
00007ffc`8c2e0b3c 5f pop rdi
00007ffc`8c2e0b3d c3 ret
C:\temp\trace\ConsoleApplication1\ConsoleApplication1\Program.cs @ 44:
00007ffc`8c2e0b3e ffc7 inc edi
00007ffc`8c2e0b40 81ff00127a00 cmp edi,7A1200h
00007ffc`8c2e0b46 7cde jl 00007ffc`8c2e0b26
C:\temp\trace\ConsoleApplication1\ConsoleApplication1\Program.cs @ 55:
00007ffc`8c2e0b48 4883c430 add rsp,30h
00007ffc`8c2e0b4c 5b pop rbx
00007ffc`8c2e0b4d 5e pop rsi
00007ffc`8c2e0b4e 5f pop rdi
00007ffc`8c2e0b4f c3 ret
Raw
x86.asm
0:000> !U eip
Normal JIT generated code
PerformanceProblem.BaseClass`1[[System.__Canon, mscorlib]].Run()
Begin 006105b0, size 3c
C:\temp\trace\ConsoleApplication1\ConsoleApplication1\Program.cs @ 44:
006105b0 55 push ebp
006105b1 8bec mov ebp,esp
006105b3 57 push edi
006105b4 56 push esi
006105b5 53 push ebx
006105b6 8bf9 mov edi,ecx
>>> 006105b8 33db xor ebx,ebx
006105ba 384704 cmp byte ptr [edi+4],al
C:\temp\trace\ConsoleApplication1\ConsoleApplication1\Program.cs @ 46:
006105bd 8b7704 mov esi,dword ptr [edi+4]
006105c0 8b0f mov ecx,dword ptr [edi]
006105c2 baac1f3f00 mov edx,3F1FACh
006105c7 e88a2f8174 call clr!CopyPDBs+0x374f (74e23556) (JitHelp: CORINFO_HELP_RUNTIMEHANDLE_CLASS)
006105cc 8bd0 mov edx,eax
006105ce 8bce mov ecx,esi
006105d0 e88b22cc71 call System_Core_ni+0x1c2860 (722d2860) (System.Linq.Enumerable.Any[[System.__Canon, mscorlib]](System.Collections.Generic.IEnumerable`1<System.__Canon>), mdToken: 06000732)
006105d5 85c0 test eax,eax
006105d7 7405 je 006105de
C:\temp\trace\ConsoleApplication1\ConsoleApplication1\Program.cs @ 55:
006105d9 5b pop ebx
006105da 5e pop esi
006105db 5f pop edi
006105dc 5d pop ebp
006105dd c3 ret
C:\temp\trace\ConsoleApplication1\ConsoleApplication1\Program.cs @ 44:
006105de 43 inc ebx
006105df 81fb00127a00 cmp ebx,7A1200h
006105e5 7cd6 jl 006105bd
C:\temp\trace\ConsoleApplication1\ConsoleApplication1\Program.cs @ 55:
006105e7 5b pop ebx
006105e8 5e pop esi
006105e9 5f pop edi
006105ea 5d pop ebp
006105eb c3 ret
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