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From: "John Yau" <jyau_kernel_dev@hotmail.com>
To: "'Robert Love'" <rml@tech9.net>
Cc: <linux-kernel@vger.kernel.org>
Subject: RE: [PATCH] Minor scheduler fix to get rid of skipping in xmms
Date: Sat, 6 Sep 2003 14:17:47 -0400	[thread overview]
Message-ID: <000101c374a3$2d2f9450$f40a0a0a@Aria> (raw)
In-Reply-To: <1062867675.3754.0.camel@boobies.awol.org>

Scratch that, I just found Ingo's patch.  My patch does essentially the same
thing except it only allows the current active process to be preempted if it
got demoted in priority during the effective priority recalculation.  This
IMHO is better because it doesn't do unnecessary context switches.  If the
process were truly a CPU hog relative other processes on the run queue, then
it'd get preempted eventually when it gets demoted rather than always every
25 ms.  How come Ingo's granular timeslice patch didn't get put into
2.6.0-test4?


John Yau

-----Original Message-----
From: Robert Love [mailto:rml@tech9.net] 
Sent: Saturday, September 06, 2003 1:01 PM
To: John Yau
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Minor scheduler fix to get rid of skipping in xmms


On Sat, 2003-09-06 at 05:46, John Yau wrote:

> I'm new to patch submission process, so bear with me.  This little 
> patch I
> wrote seems to get rid of the annoying skipping in xmms except in the most

> extreme cases.  See comments inlined in code for details of the fix.

This looks exactly like the granular timeslice patch Ingo did?

	Robert Love



  parent reply	other threads:[~2003-09-06 18:17 UTC|newest]

Thread overview: 58+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-09-06  9:46 [PATCH] Minor scheduler fix to get rid of skipping in xmms John Yau
2003-09-06 10:03 ` Michael Buesch
2003-09-06 17:01 ` Robert Love
2003-09-06 17:59   ` John Yau
2003-09-06 18:17   ` John Yau [this message]
2003-09-06 19:42     ` Rahul Karnik
2003-09-06 20:04     ` Robert Love
2003-09-06 22:41       ` John Yau
2003-09-07  2:40         ` Martin J. Bligh
2003-09-07  5:13         ` Nick Piggin
2003-09-07  7:48           ` Johnny Yau
2003-09-07  8:10             ` Nick Piggin
2003-09-07  8:35               ` John Yau
2003-09-07  9:26                 ` Nick Piggin
2003-09-07 17:30                   ` John Yau
2003-09-07 17:36                     ` Nick Piggin
2003-09-08  0:22                     ` Con Kolivas
2003-09-08  0:27                       ` David Lang
2003-09-08  0:47                         ` Con Kolivas
2003-09-07  5:08       ` Nick Piggin
2003-09-07  6:18         ` Andrew Morton
2003-09-07  6:29           ` Nick Piggin
2003-09-07  6:45             ` Andrew Morton
2003-09-07  6:59               ` Nick Piggin
2003-09-07  7:02                 ` Nick Piggin
2003-09-07 14:32             ` Martin J. Bligh
2003-09-07 17:02           ` Robert Love
2003-09-07 17:34             ` Andrew Morton
2003-09-07 18:12               ` Nick Piggin
2003-09-07 18:13             ` Nick Piggin
2003-09-06 15:58 John Yau
2003-09-06 16:57 ` Michael Buesch
2003-09-08 22:27 Steven Pratt
2003-09-08 22:56 ` Andrew Morton
2003-09-08 23:22   ` William Lee Irwin III
2003-09-09  2:10   ` Con Kolivas
2003-09-09  2:16     ` Con Kolivas
2003-09-09  2:31       ` Con Kolivas
2003-09-09  2:33         ` Andrew Morton
2003-09-09  4:14         ` Nick Piggin
2003-09-09  6:49           ` Con Kolivas
2003-09-09 23:53           ` Cliff White
2003-09-10  2:12             ` Nick Piggin
2003-09-10 19:05               ` Steven Pratt
2003-09-10 20:23                 ` Dave Hansen
     [not found]                 ` <3F5FE385.10204@cyberone.com.au>
     [not found]                   ` <3F607E62.3010903@austin.ibm.com>
     [not found]                     ` <3F60873B.4000005@cyberone.com.au>
2003-09-11 22:57                       ` Steven Pratt
2003-09-11  0:14               ` Cliff White
2003-09-09 22:06   ` Steven Pratt
2003-09-09 22:12     ` Andrew Morton
2003-09-10 13:59       ` Steven Pratt
2003-09-10 18:51   ` Steven Pratt
     [not found] <tCPY.4xU.1@gated-at.bofh.it>
     [not found] ` <tDsR.5tY.31@gated-at.bofh.it>
     [not found]   ` <tZ0f.49P.5@gated-at.bofh.it>
     [not found]     ` <tZjz.4Bn.7@gated-at.bofh.it>
2003-09-09 23:24       ` David Mosberger-Tang
2003-09-11  2:55 Andrew Theurer
2003-09-11 11:04 ` Nick Piggin
2003-09-11 13:05   ` Andrew Theurer
2003-09-11 13:53     ` Nick Piggin
2003-09-11 14:37       ` Andrew Theurer
2003-09-11 23:32 Craig Thomas

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