topic Re: Limit User to cpu cycle in Operating System - Linux

Limit User to cpu cycle

K.C. Chan — Fri, 02 Apr 2004 10:24:08 GMT

I am running redhat8 and 9, is there a way to limit cpu cycle on per user basis? Thanks.

Re: Limit User to cpu cycle

Stuart Browne — Fri, 02 Apr 2004 19:26:10 GMT

No.

All you can do is limit the 'nice' values so that system processes always have priority.

Re: Limit User to cpu cycle

KapilRaj — Sat, 03 Apr 2004 03:40:22 GMT

Give it a try for ulimit ?? I hv'nt worked on Red-Hat hence see the man pages and give it a try

Kaps

Re: Limit User to cpu cycle

Martin P.J. Zinser — Sat, 03 Apr 2004 18:53:44 GMT

ulimit -t should do the trick, also check

/etc/security/limits.conf for general settings.

Greetings, Martin

Re: Limit User to cpu cycle

Peter McKenzie_1 — Wed, 28 Apr 2004 03:01:46 GMT

If you want to limit CPU but need something better than 'nice' you can consider using HP PRM for Linux: http://h30081.www3.hp.com/products/prm_linux/overview.html.

This will allow you to group different users according to the percentage of CPU they should get. In order to do this the default Linux scheduler has to be replaced. I have never tried it under Linux only HP-UX. You need to do a kernel recompile to use.

- Peter

Re: Limit User to cpu cycle

Chris Saunderson — Fri, 09 Jul 2004 09:47:23 GMT

Not in the 2.4 kernel, though I have heard rumors that there has been some foundation work done on this.
http://ckrm.sourceforge.net/ has some info. A different poster suggested PRM, but as the project page states, this is only a proof of concept, and not supported by HP.