Date: Sat, 22 Sep 2007 16:37:09 -0700 From: "David E. Thiel" <lx@FreeBSD.org> To: freebsd-current@freebsd.org Subject: Re: SCHED_ULE on desktop system Message-ID: <20070922233709.GG59731@redundancy.redundancy.org> In-Reply-To: <20070918004027.G558@10.0.0.1> References: <20070916061932.GA93480@underworld.novel.ru> <20070918061806.GA85425@blazingdot.com> <20070918004027.G558@10.0.0.1>
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On Tue, Sep 18, 2007 at 12:44:52AM -0700, Jeff Roberson wrote: > What has happened is that you have run an x application that is so > expensive we no longer consider it interactive. Unfortunately, due to the > nature of the x server architecture, much of the compute time is spent in > x11 rather than the offending application. There really isn't anything to > be done in this case other than mark X as real-time. You can try to tune > up the interactivity heuristic limit by setting kern.sched.interact to a > higher value. This will help with short term bursts of x server cpu > utilization, however, sustained, expensive x windows processing will always > trigger poorer interactive behavior. FWIW, Sept 20th's current has gotten rid of the audio stuttering for me. Redraw and mouse movement still gets some slowdowns (even with X rtprio'd), but I think I'll wait for the new nvidia driver to come out before I can blame it on anything scheduler-related. So, something in the recent ULE commits has worked. Thanks! (for the record, I was never swapping) -David
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