Date: Fri, 2 Dec 2005 08:44:27 -0800 (PST) From: Arne Woerner <arne_woerner@yahoo.com> To: Nash Nipples <trashy_bumper@yahoo.com>, freebsd-performance@freebsd.org Subject: Re: Constraining CPU usage Message-ID: <20051202164427.53510.qmail@web30301.mail.mud.yahoo.com> In-Reply-To: <20051202155333.52155.qmail@web36301.mail.mud.yahoo.com>
next in thread | previous in thread | raw e-mail | index | archive | help
--- Nash Nipples <trashy_bumper@yahoo.com> 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%)? > 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
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20051202164427.53510.qmail>