Date: Wed, 3 Jun 2009 02:14:26 +0100 From: RW <rwmaillists@googlemail.com> To: freebsd-questions@freebsd.org Subject: Re: Set task priority Message-ID: <20090603021426.67acd729@gumby.homeunix.com> In-Reply-To: <4A25B395.6060502@FreeBSD.org> References: <4A25B029.1030608@ibctech.ca> <4ad871310906021609y4b85025bwe16346b824df7bf3@mail.gmail.com> <4A25B1DA.10201@ibctech.ca> <4A25B395.6060502@FreeBSD.org>
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On Tue, 02 Jun 2009 19:19:49 -0400 Greg Larkin <glarkin@FreeBSD.org> wrote: > I had the same situation here, and nice(1) wasn't cutting it for me. > I finally switched to idprio(1): > http://www.freebsd.org/cgi/man.cgi?query=idprio&sourceid=opensearch > > idprio 31 mysqldump ..... > > will run only when other processes are idle. That should prevent any > further self-incurred DOS symptoms for you. IIRC idprio can actually make things worse under heavy load, because it can lead to priority inversion. I think that's why you have to be root to set it.
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