Date: Sat, 27 Aug 2005 13:38:00 -0500 From: Mark Kane <mark@mkproductions.org> To: Ariff Abdullah <skywizard@MyBSD.org.my> Cc: freebsd-questions@freebsd.org Subject: Re: Performance Issues with AMD64 3000+, 1.5GB RAM, FreeBSD 5.4-RELEASE Message-ID: <4310B308.1050202@mkproductions.org> In-Reply-To: <43109A36.1050209@mkproductions.org> References: <430D3823.9070301@mkproductions.org> <20050825160909.GB10134@slackbox.xs4all.nl> <430DF015.5000203@mkproductions.org> <20050825173758.GA10790@slackbox.xs4all.nl> <430E0461.3030101@mkproductions.org> <20050826174002.GA16044@xor.obsecurity.org> <430F5C0B.3@mkproductions.org> <20050827030750.6243acd9.skywizard@MyBSD.org.my> <430F6AB1.2040306@mkproductions.org> <20050827043808.03cbe4dd.skywizard@MyBSD.org.my> <43109A36.1050209@mkproductions.org>
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Mark Kane wrote: > Ariff Abdullah wrote: > >> These are my suggestions: >> 1) enable 'options PREEMPTION'. This is a MUST. >> 2) use SCHED_ULE instead of SCHED_4BSD. ULE is pretty stable on me, >> but I can't guarantee (especially combining with PREEMPTION). >> It doesn't hurt to give it a try. >> 3) Apply these patches: >> >> http://staff.mybsd.org.my/skywizard/FreeBSD/sound/jroberson_flushbuf_RELENG_5.diff >> >> http://staff.mybsd.org.my/skywizard/FreeBSD/sound/snd_RELENG_5_20050825_035.diff >> > > > Well I added PREEMPTION to the kernel yesterday as well as the first > patch by Jeff Robertson. Immediately upon kernelinstall and reboot I > tried untarring Firefox and Thunderbird, as well as tarring them both > back up. Not a single skip, stutter, or freezing of the mouse/display! > > I did more testing last night like listening to audio with downloads > open and encoding video, and I didn't hear one skip at all. The only > time I heard a little static was when I was burning a DVD and listening > to audio at the same time, but I can understand that. > > Thanks to everyone who replied, this seems to be fixed for now. :) > > -Mark I do notice that when doing some things like using unrar to extract a file or loading a video into video encoding software I do get some of the same little crackles and static in the audio. I didn't notice this static/crackling ever before applying that first patch. I am still skip/stutter free though :). Might the second patch help the crackling/static? Thanks -Mark
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