CPU 100%

Tanguy Eric eric.tanguy at univ-nantes.fr
Sun Jun 17 20:52:34 UTC 2007


Le dimanche 17 juin 2007 à 20:38 +0100, Chris Jones a écrit :
> Hi,
> 
> > In fact the problem seems related to compiz. If i disable desktop
> > effects. The computer is usable all the time with compiling.
> 
> I have had exactly the same problems - The fact is compiz is not fully mature 
> and these sorts of things can occur.
> 
> The problem, is compiz/X requires considerably more cpu than a simple X 
> session, and when your cpu is overloaded with other things it can start to 
> impact on your interactive X performance, as you have seen. 
> 
> There are a few things you can try.
> 
> A simple thing is to also start any process which is likely to be cpu 
> intensive at a high nice value, higher than 0 the default for interactive 
> processes. i.e if you normally run 
> 
> > foo
> 
> instead try
> 
> > nice -n 10 foo
> 
> which instead will run foo at a nice value of 10.  0 is the highest priority a 
> user (other than root) can give a process, and has the highest priority. 19 
> is the lowest priority (or most 'nice')
> 
> Alternatively, you could try playing with schedtool to give X more priority 
> than it normally has. Be careful though not to give it too much priority, 
> since it you do your system can really suffer.
> 
> http://linux.derkeiler.com/Mailing-Lists/Fedora/2006-10/msg03995.html
> 
Thanks, in fact i disable compiz and bugzilla it.
Eric





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