Performance Issues with AMD64 3000+, 1.5GB RAM,
FreeBSD 5.4-RELEASE
Mark Kane
mark at mkproductions.org
Sat Aug 27 16:52:20 GMT 2005
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
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