Sound skipping problems

[Pyun YongHyeon]

On Tue, Jun 07, 2005 at 11:32:12PM -0400, Jeff Roberson wrote:
 > I have a patch that should greatly improve the sound skipping problems
 > people have under heavy io load.  Several people sent me traces that
 > showed the buf daemon running for hundreds of milliseconds with Giant
 > held, which can hold up the pcm code.  The patch is available at:
 > 
 > http://www.chesapeake.net/~jroberson/flushbuf.diff
 > 
 > This changes flushbufqueues to flush multiple buffers instead of one
 > buffer at a time.  It also places buffers we failed to flush at the end of
 > the list, and uses a sentinal to track our progress through the list.
 > This almost entirely solved the skipping problem for me.  Depending on
 > user feedback we can do a little more to reduce the time spent processing
 > here.
 > 

Unfortunatly, it seems that it doesn't show much difference.
HW: Gateway Solo 5300(UP, P3 700MHz, maestro3 driver)

As soon as I started to extract mozilla source the sound playing
stopped and the system seems to be freezed.
(No response from keyboard input except showing ^C.)
It seems that there is no difference with/without witness.
-- 
Regards,
Pyun YongHyeon
http://www.kr.freebsd.org/~yongari	|	yongari at freebsd.org