Date: Sun, 16 Sep 2007 13:59:48 +0200 From: Harald Schmalzbauer <h.schmalzbauer@omnisec.de> To: freebsd-current@freebsd.org Cc: Jeff Roberson <jroberson@chesapeake.net>, Roman Bogorodskiy <novel@freebsd.org> Subject: Re: SCHED_ULE on desktop system Message-ID: <200709161359.50560.h.schmalzbauer@omnisec.de> In-Reply-To: <20070915234855.G531@10.0.0.1> References: <20070916061932.GA93480@underworld.novel.ru> <20070915234855.G531@10.0.0.1>
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Am Sonntag, 16. September 2007 08:49:56 schrieb Jeff Roberson: > On Sun, 16 Sep 2007, Roman Bogorodskiy wrote: > > Hello, > > > > I'm curious if SCHED_ULE is designed to be used on a desktop system. I'm > > running -CURRENT at home and tried to use SCHED_ULE for some time. It > > works alright while the load is not very high. But once I start > > compiling something (running 'make buildworld' or 'portupgrade -a' for > > example), the machine comes almost unusable - X11's windows takes a lot > > of time to redraw, changing virtual desktop in window manager may take > > a several seconds. And it's nearly impossible to watch some movie with > > mplayer. > > Roman, > > This is contrary to the experiences of many others. Can you send me your Not in the UP case. My i386-core2duo with SMP kernel gives _wonderful_ responsiveness, even, with buildworld -j5, I absolutely don't feel any slowdown! But when I once accidantially installed a UP kernel,the machine was very "laggy", I want to say had short "freezes" I'm also wondering that inserting a CF card in my card reader stops all io for a second. HALd is probably the culprit, but why can the system be stopped by userland? Maybe unrelated to ULE though. Thanks
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