Linux 如何找到经常做io的进程？
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how to find the process that is doing io frequently?
提问by cheng
I am using ubuntu. There are some processes that are doing io frequently on my server, even a "ls" command will cost 1 second to execute. I want to find out which process is doing io so heavily, is there any good command or tool?
我正在使用 ubuntu。我的服务器上有一些进程经常执行 io，即使是“ls”命令也会花费 1 秒来执行。我想知道哪个进程在做io这么重，有什么好的命令或工具吗？
Thanks.
谢谢。
采纳答案by ?imon Tóth
You can use iotopto find processes that are io heavy.
您可以使用iotop来查找 io 繁重的进程。
回答by Petri Lehtinen
回答by Maxim Egorushkin
回答by dogbane
A quick way is to look at the /proc/[PID]/iofile.
一个快速的方法是查看/proc/[PID]/io文件。
Example:
例子：
$ cat /proc/1944/io
read_bytes: 17961091072
write_bytes: 8192000
cancelled_write_bytes: 32768
回答by apporc
you can try pidstat. I found it useful when i need to identify which process made high io.
你可以试试pidstat。当我需要确定哪个进程产生高 io 时，我发现它很有用。
