On 3/12/2005 3:14, "Arne Woerner" <[EMAIL PROTECTED]> wrote:
> --- Nash Nipples <[EMAIL PROTECTED]> wrote: >> It seems i cannot get a clear answer wherther it >> is possible to limit a CPU usage by a user process >> and should i do that at all. >> > Why should somebody want to keep CPU usage of a process below a > certain value (e. g. 20%)? Well if your machine isn't smp enabled (specifically pre-HTT) then one process can slow the server down to a point where your web/databse server can't get processor time to give a response - effectively making it non existent for the duration. Some tasks such as getting awstat to update and create stats pages are not a priority and can take as long as they need. (if you can't guess this is a problem I am just starting to look into) >> As you can see in the figure above, renicing wont work. >> > Why? Obviously there is no or nearly no other process, that wants > to run, so your "tar" process runs as fast as possible in order to > finish as soon as possible... > > Reniceing to a positive nice-value means that this process gets > the processor less often than other processes, who want to run... > >> Any hints? What to read? Thank you. >> > You could try idprio(1) against your tar process. That makes sure, > that your tar process waits, when other processes (non idprio > processes) want to run... > > -Arne > > > > > __________________________________ > Start your day with Yahoo! - Make it your home page! > http://www.yahoo.com/r/hs > _______________________________________________ > freebsd-performance@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-performance > To unsubscribe, send any mail to "[EMAIL PROTECTED]" > -- Shane Ambler Sales Department 007Marketing.com [EMAIL PROTECTED] _______________________________________________ freebsd-performance@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-performance To unsubscribe, send any mail to "[EMAIL PROTECTED]"
