blocks|key|592984|text|警告:未为内核4.19.84找到perf+-microsoft|type|blockquote|depth|inlineStyleRanges|entityRanges|data|592985|因为WSL2使用自定义的Linux内核。它的源代码可以在这里找到microsoft/WSL2-Linux内核。我们必须从它编译perf工具。|unstyled|offset|length|592986|操作步骤|592987|安装所需的构建包。如果在WSL2中使用Ubuntu，这是必需的命令：|unordered-list-item|592988|sudo+apt+install+build-essential+flex+bison+libssl-dev+libelf-dev|code-block|syntax|javascript|592989|克隆WSL2+Linux内核存储库：|592990|git+clone+--depth=1+https://github.com/microsoft/WSL2-Linux-Kernel.git|592991|转到perf文件夹并编译它：|592992|cd+WSL2-Linux-Kernel/tools/perf
make|592993|perf可执行文件将位于该文件夹中。|style|CODE|592994|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/microsoft/WSL2-Linux-Kernel.git^0|0|W|M|0|0|0|0|0|0|0|0|0|0|4|0^^$0|@$1|2|3|4|5|6|7|1A|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|1B|8|@]|9|@$E|1C|F|1D|1|1E]]|A|$]]|$1|G|3|H|5|D|7|1F|8|@]|9|@]|A|$]]|$1|I|3|J|5|K|7|1G|8|@]|9|@]|A|$]]|$1|L|3|M|5|N|7|1H|8|@]|9|@]|A|$O|P]]|$1|Q|3|R|5|K|7|1I|8|@]|9|@]|A|$]]|$1|S|3|T|5|N|7|1J|8|@]|9|@]|A|$O|P]]|$1|U|3|V|5|K|7|1K|8|@]|9|@]|A|$]]|$1|W|3|X|5|N|7|1L|8|@]|9|@]|A|$O|P]]|$1|Y|3|Z|5|D|7|1M|8|@$E|1N|F|1O|10|11]]|9|@]|A|$]]|$1|12|3|-4|5|D|7|1P|8|@]|9|@]|A|$]]]|13|$14|$5|15|16|17|A|$18|19]]]]

<blockquote>
WARNING: perf not found for kernel 4.19.84-microsoft
</blockquote>
Because WSL2 uses custom Linux kernel. Its source code can be found here
<a href="https://github.com/microsoft/WSL2-Linux-Kernel.git" rel="noreferrer">microsoft/WSL2-Linux-Kernel</a>. We have to compile perf tools from it.
<h2>Procedure</h2>
<ul>
<li>Install required build packages. If you are using Ubuntu in WSL2 this is the
required command:</li>
</ul>

<pre><code>sudo apt install build-essential flex bison libssl-dev libelf-dev
</code></pre>
<ul>
<li>Clone the WSL2 Linux kernel repository:</li>
</ul>

<pre><code>git clone --depth=1 https://github.com/microsoft/WSL2-Linux-Kernel.git
</code></pre>
<ul>
<li>Go to perf folder and compile it:</li>
</ul>

<pre><code>cd WSL2-Linux-Kernel/tools/perf
make
</code></pre>
<code>perf</code> executable file will be in that folder.

blocks|key|1225236|text|如果您遵循已接受的答案，请确保在开始时读取抱怨--+make命令打印，因为它可能缺少一些标头并禁用功能。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1225237|对我来说，它禁用了tui、gtk和demangling等几个功能。|1225238|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

If you follow the accepted answer, make sure you read the complains the make command prints at the start, as it might be missing some headers and disables functionality.
For me it disabled tui, gtk and demangling to name a few features.

blocks|key|593031|text|您可以安装linux-tools-generic。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|593032|apt+install+linux-tools-generic|code-block|syntax|javascript|593033|然后使用install+/usr/lib/linux-tools/<linux-version>-generic/perf运行/usr/lib/linux-tools/<linux-version>-generic/perf。|593034|有些工具，如flamegraph，将使用环境变量PERF作为perf路径。|593035|PERF=/usr/lib/linux-tools/<linux-version>-generic/perf+flamegraph+--+my_program|593036|entityMap|0|LINK|mutability|MUTABLE|url|https://pkgs.org/download/linux-tools-generic|1|https://lib.rs/crates/flamegraph^0|5|J|5|J|0|0|0|C|1D|1R|1D|0|6|A|O|4|U|4|6|A|1|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@$9|11|A|12|B|C]]|D|@$9|13|A|14|1|15]]|E|$]]|$1|F|3|G|5|H|7|16|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|17|8|@$9|18|A|19|B|C]|$9|1A|A|1B|B|C]]|D|@]|E|$]]|$1|M|3|N|5|6|7|1C|8|@$9|1D|A|1E|B|C]|$9|1F|A|1G|B|C]|$9|1H|A|1I|B|C]]|D|@$9|1J|A|1K|1|1L]]|E|$]]|$1|O|3|P|5|H|7|1M|8|@]|D|@]|E|$I|J]]|$1|Q|3|-4|5|6|7|1N|8|@]|D|@]|E|$]]]|R|$S|$5|T|U|V|E|$W|X]]|Y|$5|T|U|V|E|$W|Z]]]]

You can install <a href="https://pkgs.org/download/linux-tools-generic" rel="noreferrer"><code>linux-tools-generic</code></a>.
<pre><code>apt install linux-tools-generic
</code></pre>
Then run <code>perf</code> using the install path <code>/usr/lib/linux-tools/&lt;linux-version&gt;-generic/perf</code>.
Some tools, like <a href="https://lib.rs/crates/flamegraph" rel="noreferrer"><code>flamegraph</code></a>, will use environment variable <code>PERF</code> as the <code>perf</code> path.
<pre><code>PERF=/usr/lib/linux-tools/&lt;linux-version&gt;-generic/perf flamegraph -- my_program
</code></pre>

blocks|key|593086|text|接受的答案是有效的。但是，缺少一些功能。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|593087|为了获得有用的信息，我必须安装下面的库，然后再运行make。|offset|length|style|CODE|593088|libbabeltrace-dev|unordered-list-item|593089|libunwind-dev|593090|libdw-dev|593091|binutils-dev|593092|libiberty-dev|593093|我不确定是否所有这些都是必要的。然而，这些都足以使cargo-flamegraph+(我的usecase)工作。|593094|entityMap^0|0|P|4|0|0|H|0|0|D|0|0|9|0|0|C|0|0|D|0|P|G|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|X|8|@$D|Y|E|Z|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|10|8|@$D|11|E|12|F|G]]|9|@]|A|$]]|$1|K|3|L|5|J|7|13|8|@$D|14|E|15|F|G]]|9|@]|A|$]]|$1|M|3|N|5|J|7|16|8|@$D|17|E|18|F|G]]|9|@]|A|$]]|$1|O|3|P|5|J|7|19|8|@$D|1A|E|1B|F|G]]|9|@]|A|$]]|$1|Q|3|R|5|J|7|1C|8|@$D|1D|E|1E|F|G]]|9|@]|A|$]]|$1|S|3|T|5|6|7|1F|8|@$D|1G|E|1H|F|G]]|9|@]|A|$]]|$1|U|3|-4|5|6|7|1I|8|@]|9|@]|A|$]]]|V|$]]

The accepted answer works. However, some features are missing.
In order to get useful and demangled information, I had to install the following libs and then run <code>make</code> again.
<ul>
<li><code>libbabeltrace-dev</code></li>
<li><code>libunwind-dev</code></li>
<li><code>libdw-dev</code></li>
<li><code>binutils-dev</code></li>
<li><code>libiberty-dev</code></li>
</ul>
I'm not sure if all of them are necessary. However, those are adequate for <code>cargo-flamegraph</code> (my usecase) to work.

blocks|key|1438152|text|您可以安装perf的一些通用版本，而不是WSL2版本，例如：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1438153|sudo+apt+install+linux-tools-5.4.0-126-generic+linux-tools-common|code-block|syntax|javascript|1438154|然后，当您运行perf时，它会出错，例如：|1438155|$+perf
WARNING:+perf+not+found+for+kernel+5.10.16.3-microsoft

++You+may+need+to+install+the+following+packages+for+this+specific+kernel:
++++linux-tools-5.10.16.3-microsoft-standard-WSL2
++++linux-cloud-tools-5.10.16.3-microsoft-standard-WSL2|1438156|这是因为脚本/usr/bin/perf总是试图从uname+-r中获取perf二进制文件|offset|length|style|CODE|1438157|$+grep+uname+`which+perf`
full_version=`uname+-r`|1438158|我们可以将/usr/bin/perf替换为实际的perf：|1438159|mv+/usr/bin/perf+/usr/bin/perf.bk+&&+ln+-s+/usr/lib/linux-tools/5.4.0-126-generic/perf+/usr/bin/perf|1438160|然后：|1438161|$+perf+stat+ls+1>/dev/null

+Performance+counter+stats+for+'ls':

++++++++++++++1.79+msec+task-clock:u++++++++++++++#++++0.827+CPUs+utilized
+++++++++++++++++0++++++context-switches:u++++++++#++++0.000+K/sec
+++++++++++++++++0++++++cpu-migrations:u++++++++++#++++0.000+K/sec
+++++++++++++++112++++++page-faults:u+++++++++++++#++++0.063+M/sec
+++<not+supported>++++++cycles:u
+++<not+supported>++++++instructions:u
+++<not+supported>++++++branches:u
+++<not+supported>++++++branch-misses:u

+++++++0.002158900+seconds+time+elapsed

+++++++0.002182000+seconds+user
+++++++0.000000000+seconds+sys|1438162|我想硬件/缓存计数器在WSL2上是不可用的|1438163|entityMap^0|0|0|0|0|6|D|O|8|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|14|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|15|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|16|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|17|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|18|8|@$M|19|N|1A|O|P]|$M|1B|N|1C|O|P]]|9|@]|A|$]]|$1|Q|3|R|5|D|7|1D|8|@]|9|@]|A|$E|F]]|$1|S|3|T|5|6|7|1E|8|@]|9|@]|A|$]]|$1|U|3|V|5|D|7|1F|8|@]|9|@]|A|$E|F]]|$1|W|3|X|5|6|7|1G|8|@]|9|@]|A|$]]|$1|Y|3|Z|5|D|7|1H|8|@]|9|@]|A|$E|F]]|$1|10|3|11|5|6|7|1I|8|@]|9|@]|A|$]]|$1|12|3|-4|5|6|7|1J|8|@]|9|@]|A|$]]]|13|$]]

You could install some generic version of perf, rather than the WSL2 version, like:
<pre><code>sudo apt install linux-tools-5.4.0-126-generic linux-tools-common
</code></pre>
And then when you run perf, it will error out, like:
<pre><code>$ perf
WARNING: perf not found for kernel 5.10.16.3-microsoft

 You may need to install the following packages for this specific kernel:
 linux-tools-5.10.16.3-microsoft-standard-WSL2
 linux-cloud-tools-5.10.16.3-microsoft-standard-WSL2
</code></pre>
This is because script <code>/usr/bin/perf</code> always trying to get the perf binary from <code>uname -r</code>
<pre><code>$ grep uname `which perf`
full_version=`uname -r`
</code></pre>
We could replace /usr/bin/perf with the actual perf :
<pre><code>mv /usr/bin/perf /usr/bin/perf.bk &amp;&amp; ln -s /usr/lib/linux-tools/5.4.0-126-generic/perf /usr/bin/perf
</code></pre>
and then:
<pre><code>$ perf stat ls 1&gt;/dev/null

 Performance counter stats for 'ls':

 1.79 msec task-clock:u # 0.827 CPUs utilized
 0 context-switches:u # 0.000 K/sec
 0 cpu-migrations:u # 0.000 K/sec
 112 page-faults:u # 0.063 M/sec
 &lt;not supported&gt; cycles:u
 &lt;not supported&gt; instructions:u
 &lt;not supported&gt; branches:u
 &lt;not supported&gt; branch-misses:u

 0.002158900 seconds time elapsed

 0.002182000 seconds user
 0.000000000 seconds sys
</code></pre>
I think it is expected the hardware/cache counters are not available on WSL2

When I wanted to run perf under WSL, I met the follow question:

<blockquote>
 WARNING: perf not found for kernel 4.4.0-18362
 
 You may need to install the following packages for this specific kernel:
 
 linux-tools-4.4.0-18362-Microsoft
 
 linux-cloud-tools-4.4.0-18362-Microsoft
 
 You may also want to install one of the following packages to keep up to date:
 
 linux-tools-Microsoft
 
 linux-cloud-tools-Microsoft
</blockquote>

But I can't find packages called <code>linux-tools-4.4.0-18362-Microsoft</code> or <code>linux-cloud-tools-4.4.0-18362-Microsoft</code>. I guess the package names are generated automatically.

I also tried to use perf in docker container. However, docker container use the same kernel as the hosts.

Is there any method to run perf under WSL?

<hr>

I heard that perf can be used in WSL2. But after I upgraded to WSL2, it shows the similar error message:

<blockquote>
 WARNING: perf not found for kernel 4.19.84-microsoft
 
 You may need to install the following packages for this specific
 kernel:

<pre><code>linux-tools-4.19.84-microsoft-standard

linux-cloud-tools-4.19.84-microsoft-standard
</code></pre>
 
 You may also want to install one of the following packages to keep
 up to date:

<pre><code>linux-tools-standard

linux-cloud-tools-standard
</code></pre>
</blockquote>

Is there any method to run perf under WSL?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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当我想在WSL下运行perf时，我遇到了以下问题：警告:内核4.4.0-18362找不到perf您可能需要为这个特定的内核安装以下软件包：linux-tools-4.4.0-18362-Microsoftlinux-cloud-tools-4.4.0-18362-Microsoft您还可能希望安装下列软件包之一以保持最...

问有什么方法在WSL下运行perf吗？
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问有什么方法在WSL下运行perf吗？EN