Question

我试图在从VS单元测试工具运行它时对我的.NET dll进行配置，但是我遇到了问题。我正在使用独立的命令行分析器，因为VS2008 Professional没有内置的分析器。

我有一个开放的CMD窗口，并且运行了以下命令（我之前对其进行了检测，这就是为什么vsinstr发出了警告：）

C:\...\BusinessRules\obj\Debug>vsperfclrenv /samplegclife /tracegclife /globalsamplegclife /globaltracegclife
Enabling VSPerf Sampling Attach Profiling. Allows to 'attaching' to managed applications.

Current Profiling Environment variables are:
COR_ENABLE_PROFILING=1
COR_PROFILER={0a56a683-003a-41a1-a0ac-0f94c4913c48}
COR_LINE_PROFILING=1
COR_GC_PROFILING=2

C:\...\BusinessRules\obj\Debug>vsinstr BusinessRules.dll
Microsoft (R) VSInstr Post-Link Instrumentation 9.0.30729 x86
Copyright (C) Microsoft Corp. All rights reserved.

Error VSP1018 : VSInstr does not support processing binaries that are already instrumented.

C:\...\BusinessRules\obj\Debug>vsperfcmd /start:trace /output:foo.vsp
Microsoft (R) VSPerf Command Version 9.0.30729 x86
Copyright (C) Microsoft Corp. All rights reserved.

C:\...\BusinessRules\obj\Debug>

然后我运行了运行检测代码的单元测试。单元测试完成后，我做了......

C:\...\BusinessRules\obj\Debug>vsperfcmd /shutdown
Microsoft (R) VSPerf Command Version 9.0.30729 x86
Copyright (C) Microsoft Corp. All rights reserved.


Waiting for process 4836 ( C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\vstesthost.exe) to shutdown...

显然在等待VS2008关闭所以我关闭了它......

Shutting down the Profile Monitor
------------------------------------------------------------

C:\...\BusinessRules\obj\Debug>

一切都很好，目录中有一个3.2mb的foo.vsp文件。我接下来做了......

C:\...\BusinessRules\obj\Debug>vsperfreport foo.vsp /summary:all

Microsoft (R) VSPerf Report Generator, Version 9.0.0.0
Copyright (C) Microsoft Corporation. All rights reserved.

VSP2340: Environment variables were not properly set during profiling run and managed symbols may not resolve.  Please use vsperfclrenv before profiling.
File opened
Successfully opened the file.
A report file, foo_Header.csv, has been generated.
A report file, foo_MarksSummary.csv, has been generated.
A report file, foo_ProcessSummary.csv, has been generated.
A report file, foo_ThreadSummary.csv, has been generated.
Analysis completed
A report file, foo_FunctionSummary.csv, has been generated.
A report file, foo_CallerCalleeSummary.csv, has been generated.
A report file, foo_CallTreeSummary.csv, has been generated.
A report file, foo_ModuleSummary.csv, has been generated.

C:\...\BusinessRules\obj\Debug>

注意有关环境变量的警告并使用vsperfclrenv？但我跑了！也许我使用了错误的开关？我不知道。无论如何，将csv文件加载到Excel或使用perfconsole工具可以提供大量有用信息和无用的符号名称：

*** Loading commands from: C:\temp\PerfConsole\bin\commands\timebytype.dll
***   Adding command: timebytype
*** Loading commands from: C:\temp\PerfConsole\bin\commands\partition.dll
***   Adding command: partition

Welcome to PerfConsole 1.0 (for bugs please email: joshwil@microsoft.com), for help type: ?, for a quickstart type: ??

> load foo.vsp
*** Couldn't match to either expected sampled or instrumented profile schema, defaulting to sampled
*** Couldn't match to either expected sampled or instrumented profile schema, defaulting to sampled
*** Profile loaded from 'foo.vsp' into @foo

> 
> functions @foo
>>>>> Function Name

Exclusive            Inclusive            Function Name  Module Name
-------------------- -------------------- -------------- ---------------
900,798,600,000.00 % 900,798,600,000.00 % 0x0600003F     20397910
14,968,500,000.00 %  44,691,540,000.00 %  0x06000040     14736385
8,101,253,000.00 %   14,836,330,000.00 %  0x06000041     5491345
3,216,315,000.00 %   6,876,929,000.00 %   0x06000042     3924533
<snip>
71,449,430.00 %      71,449,430.00 %      0x0A000074     42572
52,914,200.00 %      52,914,200.00 %      0x0A000073     0
14,791.00 %          13,006,010.00 %      0x0A00007B     0
199,177.00 %         6,082,932.00 %       0x2B000001     5350072
2,420,116.00 %       2,420,116.00 %       0x0A00008A     0
836.00 %             451,888.00 %         0x0A000045     0
9,616.00 %           399,436.00 %         0x0A000039     0
18,202.00 %          298,223.00 %         0x06000046     1479900

我非常接近能够找到瓶颈，只要它能给我功能和模块名称而不是十六进制数字！

我做错了什么？

--- Alistair。

Answer 1

原因是我没有在定义环境变量的同一个进程中运行可执行文件。它是需要访问环境变量的检测代码，而不是分析器。

所以我在使用vsperfclrenv之后直接从命令行运行了VS2008，这一切都运行了，我有我的函数名。

可悲的是，我仍然遇到Schema错误，这意味着我无法深入了解调用树，但我至少设法识别出这个特定的瓶颈。

--- Alistair。

Answer 2

有几种可能的尝试（请注意，我不是命令行分析器的专家 - 我一次只使用它几次）：

docs for vsperfclrenv说：

您选择的选项取决于您使用的三种类型的分析中的哪一种：采样，检测或全局。

在vsperfclrenv的通话中，您可以选择所有3种类型的分析 - 我建议您选择一种类型开始使用，如果可行则继续前进，但您想尝试其他类型如果他们的工作做得更好，可以看看。
您可能还需要为符号指定位置（即使未使用vsperfclrenv完成此操作）。可以使用_NT_SYMBOLS_PATH环境变量或/SymbolPath的{{1}}选项（或通过将.pdb文件放在与二进制文件相同的位置）来配置符号位置。有关详细信息，请参阅"How to: Specify Symbol File Locations from the Command Line"。

在VS2008 Professional中使用MS Standalone Profiler

2 个答案: