Date: Sat, 27 Aug 2005 04:38:08 +0800 From: Ariff Abdullah <skywizard@MyBSD.org.my> To: Mark Kane <mark@mkproductions.org> Cc: freebsd-questions@freebsd.org Subject: Re: Performance Issues with AMD64 3000+, 1.5GB RAM, FreeBSD 5.4-RELEASE Message-ID: <20050827043808.03cbe4dd.skywizard@MyBSD.org.my> In-Reply-To: <430F6AB1.2040306@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>
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On Fri, 26 Aug 2005 14:17:05 -0500 Mark Kane <mark@mkproductions.org> wrote: > Ariff Abdullah wrote: > > I've been following this thread, yet I still don't know what is > > your soundcard. To tell you the truth, much of these issues relies > > heavily on your spesific sound driver, whether it has been freed > > from Giant or not. At least: > > Well the thing that makes me think it's not entirely related to > sound is because when the sound problem happens, other things > happen as well. As I have said, the mouse locks up and freezes at > the precise time that the audio starts stuttering. If I was playing > video, it would freeze/stutter at the same time too. > > > 1) What is your soundcard? > > Sound Blaster Augidy 2 Platinum with the emu10k1 driver compiled > into the kernel. > > > 2) What type of scheduler you use? (I can see that is SCHED_4BSD) > > Right, SCHED_4BSD in the GENERIC kernel. > > > 3) Is PREEMPTION enabled? > > No, not that I know of. I don't see it in GENERIC, and I haven't > added it. > 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 -- Ariff Abdullah MyBSD http://www.MyBSD.org.my (IPv6/IPv4) http://staff.MyBSD.org.my (IPv6/IPv4) http://tomoyo.MyBSD.org.my (IPv6/IPv4)
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