Performance Issues with AMD64 3000+, 1.5GB RAM, FreeBSD
skywizard at MyBSD.org.my
Sat Aug 27 22:47:37 GMT 2005
On Sat, 27 Aug 2005 13:38:00 -0500
Mark Kane <mark at mkproductions.org> wrote:
> 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:
> >uf_RELENG_5.diff >
> >50825_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?
Perhaps. You should give it a try. There is another issue as well
(such as PCI latency timer), but only after you applied all those
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