blocks|key|341147|text|kworker是一个内核线程，它处理在linux/+workqueues.This+/workqueue.c+e.c文件中创建的内核线程。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|341148|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

kworker is a kernel thread which processes workqueues.This thread is created in the file linux/kernel/workqueue.c file.

blocks|key|557205|text|(对我来说，这似乎是一个离题的话题，但这是我在unix.stackexchange.com上发布的answer。)|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|557206|我发现this+thread+on+lkml稍微回答了你的问题。(似乎连Linus自己都对如何找出这些线程的来源感到困惑。)|557207|基本上，有两种方法可以做到这点：|557208|$+echo+workqueue:workqueue_queue_work+>+/sys/kernel/debug/tracing/set_event
$+cat+/sys/kernel/debug/tracing/trace_pipe+>+out.txt
(wait+a+few+secs)|code-block|syntax|javascript|557209|为此，您需要在内核中编译ftrace。|557210|这将输出线程都在做什么，并且对于跟踪多个小作业很有用。|557211|cat+/proc/THE_OFFENDING_KWORKER/stack|557212|这将输出执行大量工作的单个线程的堆栈。例如，它可能允许您找出是什么原因导致此特定线程占用CPU。THE_OFFENDING_KWORKER是进程列表中的kworker的pid。|style|CODE|557213|entityMap|0|LINK|mutability|MUTABLE|url|https://unix.stackexchange.com/questions/22851/why-is-kworker-consuming-so-many-resources-on-linux-3-0-0-12-server/65270#65270|1|2|https://lkml.org/lkml/2011/3/31/68|3|http://www.elinux.org/Ftrace^0|N|M|0|1D|6|1|0|3|J|2|0|0|0|C|6|3|0|0|0|1C|L|0^^$0|@$1|2|3|4|5|6|7|19|8|@]|9|@$A|1A|B|1B|1|1C]|$A|1D|B|1E|1|1F]]|C|$]]|$1|D|3|E|5|6|7|1G|8|@]|9|@$A|1H|B|1I|1|1J]]|C|$]]|$1|F|3|G|5|6|7|1K|8|@]|9|@]|C|$]]|$1|H|3|I|5|J|7|1L|8|@]|9|@]|C|$K|L]]|$1|M|3|N|5|6|7|1M|8|@]|9|@$A|1N|B|1O|1|1P]]|C|$]]|$1|O|3|P|5|6|7|1Q|8|@]|9|@]|C|$]]|$1|Q|3|R|5|J|7|1R|8|@]|9|@]|C|$K|L]]|$1|S|3|T|5|6|7|1S|8|@$A|1T|B|1U|U|V]]|9|@]|C|$]]|$1|W|3|-4|5|6|7|1V|8|@]|9|@]|C|$]]]|X|$Y|$5|Z|10|11|C|$12|13]]|14|$5|Z|10|11|C|$12|13]]|15|$5|Z|10|11|C|$12|16]]|17|$5|Z|10|11|C|$12|18]]]]

(Seems to me this is rather off topic here, but here's the <a href="https://unix.stackexchange.com/questions/22851/why-is-kworker-consuming-so-many-resources-on-linux-3-0-0-12-server/65270#65270">answer</a> I posted on <a href="https://unix.stackexchange.com/questions/22851/why-is-kworker-consuming-so-many-resources-on-linux-3-0-0-12-server/65270#65270">unix.stackexchange.com</a>.)

I found <a href="https://lkml.org/lkml/2011/3/31/68" rel="noreferrer">this thread on lkml</a> that answers your question a little. (It seems even Linus himself was puzzled as to how to find out the origin of those threads.)

Basically, there are two ways of doing this:

<pre><code>$ echo workqueue:workqueue_queue_work &gt; /sys/kernel/debug/tracing/set_event
$ cat /sys/kernel/debug/tracing/trace_pipe &gt; out.txt
(wait a few secs)
</code></pre>

For this you will need <a href="http://www.elinux.org/Ftrace" rel="noreferrer">ftrace</a> to be compiled in your kernel.

This will output what threads are all doing, and is useful for tracing multiple small jobs.

<pre><code>cat /proc/THE_OFFENDING_KWORKER/stack
</code></pre>

This will output the stack of a single thread doing a lot of work. It may allow you to find out what caused this specific thread to hog the CPU (for example). <code>THE_OFFENDING_KWORKER</code> is the pid of the kworker in the process list.

On my newly installed system using kernel 3.2 I see a kworker-thread which is constantly consuming CPU. I'd like to find out which part of kernel/module has created this workqueue. 

How to track a kworker-thread named for example ''kworker/0:3 to its origin in kernel-space?

I tried to look into /sys/kernel/debug/tracing/events/workqueue, but wasn't able to figure it out.

Origin of a kworker-thread

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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在我新安装的使用内核3.2的系统上，我看到一个kworker-thread，它经常消耗CPU。我想找出内核/模块的哪个部分创建了这个工作队列。如何跟踪一个名为''kworker/0:3‘’的kworker线程到它在内核空间中的原点？我试图查看/sys/kernel/debug/tracing/events/workqu...

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