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Limit the cpu usage of a process

Terminal - Limit the cpu usage of a process
sudo cpulimit -p pid -l 50
2011-11-21 08:43:57
User: Dhinesh
Functions: sudo
20
Limit the cpu usage of a process

This will limit the average amount of CPU it consumes.

Alternatives

There are 2 alternatives - vote for the best!

Terminal - Alternatives
prlimit --cpu=10 sort -u hugefile
2013-02-27 15:59:11
User: mhs
Functions: sort
Tags: cpu util-linux
4

Similar to `cpulimit`, although `prlimit` can be found shipped with recent util-linux.

Example: limit CPU consumption to 10% for a math problem which ordinarily takes up 100% CPU:

Before:

bc -l <(echo "1234123412341234^12341234")

See the difference `prlimit` makes:

prlimit --cpu=10 bc -l <(echo "1234123412341234^12341234")

To actually monitor the CPU usage, use `top`, `sar`, etc.. or:

pidstat -C 'bc' -hur -p ALL 1
sudo cpulimit -e Grooveshark -l 20
2010-11-15 16:58:50
User: poulter7
Functions: sudo
0

Will limit the amount of CPU time Grooveshark the greedy yet useful Adobe Air app will have.

Leaves the UI lagging a little, but crucially does not ruin the audio.

Know a better way?

If you can do better, submit your command here.

What others think

CentOS 5.5 doesn't have it. What package can provide it?

Comment by mente 148 weeks and 2 days ago

neither on fedora 16

# yum provides '*/cpulimit'

returns nothing

Comment by The_IceMan_Blog 148 weeks and 2 days ago

available on github:

https://github.com/opsengine/cpulimit

Comment by piccobello 97 weeks and 2 days ago

Your point of view

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