Performance Issues with AMD64 3000+, 1.5GB RAM,
kris at obsecurity.org
Fri Aug 26 19:27:54 GMT 2005
On Fri, Aug 26, 2005 at 01:14:35PM -0500, Mark Kane wrote:
> Kris Kennaway wrote:
> >On Thu, Aug 25, 2005 at 12:48:17PM -0500, Mark Kane wrote:
> >>Roland Smith wrote:
> >>>Another thing to look at might be the scheduler. I'm using SCHED_4BSD.
> >>Hmm, I'm using just a GENERIC kernel with support added in for my sound
> >>driver and atapicam for K3b. SCHED_4BSD looks default in GENERIC:
> >>options SCHED_4BSD # 4BSD scheduler
> >>I've been trying this morning with no real disk I/O and just XMMS open.
> >>It's much better than if I did have a download/upload going using disk
> >>I/O or trying to read from a file on the drive, but still nowhere near
> >>perfect. Every minute I'll still hear a little skip or stutter in the
> >>audio, and still notice the mouse locking up a bit at the exact moment
> >>that happens.
> >Did you not read my mail? I explained this and the solution.
> Yes, I read your email and responded to it yesterday. I said:
> I found the sound skipping thread by Jeff. Looks like a great
> explanation, however my problem even occurs even with light disk I/O
> such as reading an mp3/Ogg/video file off any of the drives. I did some
> more testing with actual files off the drives last night instead of
> streams, and it seems worse with actual files.
> I'm not sure if the proposed patch will fix it or not, and trying
> 6.0-BETA2 for my other hardware/hard drive problem just introduced new
> problems (panics, network stuff not recognized, etc). I do have a spare
> hard drive where I could put test anything though if you think trying
> -CURRENT or another BETA would be worthwhile.
> So, in other words, even when there is NOT heavy disk I/O it still has
> problems, although they do get worse with more disk I/O. I don't know if
> you saw my previous replies, but trying 5.4-STABLE on my Athlon XP 2000+
> instead of 5.4-RELEASE seemed to make it much better on that machine
> (however still not perfect).
> I was wondering if the code that fixed it in 6 was merged to 5-STABLE or
> if the patch was already committed to 5-STABLE? I haven't tried -STABLE
> on my amd64 yet though.
The patch is in 6.0 only and has not yet been merged to 5.x.
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