[Twisted-Python] 100% CPU on high opened descriptors

Reza Lotun rlotun at gmail.com
Thu May 5 10:52:56 EDT 2011


2011/5/5 Juan Antonio Ibañez Santorum <juanito1982 at gmail.com>

> I had got the same problem using '-r epoll' options when starting the app
> via twistd... When 1024 descriptors are opened, I can see 100% CPU.
>
> Any ideas?
>
>
1. Edit /etc/sysctl.conf and place the following line there:
       fs.file-max = 999999
2. Type $ sudo sysctl -p
3. Place the following two lines:
*       soft    nofile      999999
*       hard    nofile      999999
Either reboot, or also type in `ulimit -n 999999`
4. Check that $ ulimit -a shows your open fixes set to 999999

There's nothing special about 999999 - it's just some big number
conveniently bigger than 1024. Enjoy.

Reza

-- 
Reza Lotun
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