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From: "Martin J. Bligh" <mbligh@aracnet.com>
To: Con Kolivas <kernel@kolivas.org>,
	linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: xmms (audio) skipping in 2.5 (not 2.4)
Date: Mon, 03 Mar 2003 21:52:22 -0800	[thread overview]
Message-ID: <104910000.1046757141@[10.10.2.4]> (raw)
In-Reply-To: <200303041636.00745.kernel@kolivas.org>

>> So ... is there any easy way I can diagnose this? Does anyone else have a
>> similar problem?
> 
> Most of us who have worked with an O(1) scheduler based kernel have found
> this  at various times. See the previous discussion with akpm about the 
> interactivity estimator. Akpm found that decreasing the maximum timeslice 
> duration would blunt the effect of the interactivity estimator giving 
> preference to the "wrong" task. In 2.4.20-ck4 I avoid this problem with
> the  "desktop tuning" of making the max timeslice==min timeslice. Try an
> -mm  kernel with the scheduler tunables patch and try playing with the
> max  timeslice. Most have found that <=25 will usually stop these skips.
> The  default max timeslice of 300ms is just too long for the desktop and 
> interactivity estimator.

Heh, cool. I have the same patch in my tree too, fixed it without rebooting
even ;-) Still a *tiny* bit of skipping, but infinitely better than it was.
Thanks very much,

M.


  reply	other threads:[~2003-03-04  5:42 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-03-04  5:25 xmms (audio) skipping in 2.5 (not 2.4) Martin J. Bligh
2003-03-04  5:36 ` Con Kolivas
2003-03-04  5:52   ` Martin J. Bligh [this message]
2003-03-04  7:28     ` Con Kolivas
2003-03-04  7:48       ` Martin J. Bligh
2003-03-04  8:15         ` Con Kolivas
2003-03-04 10:00           ` Andrew McGregor
2003-03-04 15:59             ` Martin J. Bligh
2003-03-12 22:59     ` Pavel Machek
2003-03-12 23:42       ` Martin J. Bligh
2003-03-04  9:48   ` Giuliano Pochini
2003-03-04 14:13 ` Anton Blanchard
2003-03-04 14:18   ` Maciej Soltysiak
2003-03-04 14:31   ` Sean Neakums
2003-03-04 16:17   ` Martin J. Bligh
2003-03-04 18:39 ` Aaron Lehmann

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