Performance Issues with AMD64 3000+, 1.5GB RAM, FreeBSD 5.4-RELEASE

Mark Kane mark at
Thu Aug 25 17:48:26 GMT 2005

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.

So you have no similar problems in -STABLE? How about when untarring a 
bigger file and playing audio? If not, then maybe trying STABLE on that 
other drive might be a good idea.

The reason I wanted to see any changelog was to see if there is any 
changes to this part of the code at all before trying it, but file by 
file I would probably be lost since I am not a programmer.



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