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Date: Sun, 22 Aug 2004 10:00:47 GMT
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From: Jon Noack <noackjr@alumni.rice.edu>
Subject: Re: kern/59349: patch to including locking for es137x sound driver
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The following reply was made to PR kern/59349; it has been noted by GNATS.

From: Jon Noack <noackjr@alumni.rice.edu>
To: freebsd-gnats-submit@FreeBSD.org, mat@cnd.mcgill.ca,
	julian@elischer.org
Cc:  
Subject: Re: kern/59349: patch to including locking for es137x sound driver
Date: Sun, 22 Aug 2004 04:56:51 -0500

 I'm running a modified version of the patch from this PR (which includes 
 the snd_mtxfree).  Here's a link to the current version (note that this 
 patch includes the changes for kern/68594 and also slightly cleans up 
 the attach/detach cleanup order):
 http://www.noacks.org/freebsd/es137x.diff
 
 Works fine here.  Don't know about 4BSD, but ULE is really struggling 
 right now.  While playing an mp3 on a relatively idle machine, the pcm 
 interrupt rate is a steady 86/sec.  Extracting the Firefox source while 
 playing an mp3 (to simulate load) causes the pcm interrupt rate to fall 
 and vary between 60-80/sec, causing all sorts of "excitement". 
 Hopefully the PREEMPTION fixes will take care of all that nonsense. 
 Note that this behavior is the same with/without this patch.
 
 Jon