Top.Mail.Ru
? ?

Previous Entry | Next Entry

cpulimit is back in RHEL6 based kernel

Hard CPU limit (ability to specify that you don't want this container to use more than X per cent of CPU no matter what) is back in latest RHEL6-based kernel, 042test006.1, which has just been released.

The feature was only available for the stable (i.e RHEL4 and RHEL5-based) kernels, and was missing from all of our development kernels from 2.6.20 to 2.6.32. So while it was always there in stable branches, the feeling is like it's back.

In order to use CPU limit feature, set the limit using vzctl set $CTID --cpulimit X, where X is in per cent of one single CPU. For example, if you have single 2 GHz CPU and want container 123 to use no more than 1 GHz, use vzctl set 123 --cpulimit 50. If you have 2 GHz quad-core system and want to use no more than 4 GHz, use vzctl set 123 --cpulimit 200. Well, in the second case it might be better to just use --cpus 2. Anyways, see vzctl man page.

Comments

k001
Jan. 21st, 2011 10:52 am (UTC)
Re: Working :)
please file a bug about it

Latest Month

July 2016
S M T W T F S
     12
3456789
10111213141516
17181920212223
24252627282930
31      

Page Summary

Comments

Powered by LiveJournal.com
Designed by Tiffany Chow