From: William Lee Irwin III <wli@holomorphy.com>
To: Marc-Christian Petersen <m.c.p@wolk-project.de>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Christian Klose <christian.klose@freenet.de>
Subject: Re: I/O problems in 2.4.19/2.4.20/2.4.21-rc3
Date: Sat, 24 May 2003 07:28:09 -0700 [thread overview]
Message-ID: <20030524142809.GZ8978@holomorphy.com> (raw)
In-Reply-To: <200305241615.49463.m.c.p@wolk-project.de>
On Sat, May 24, 2003 at 04:19:40PM +0200, Marc-Christian Petersen wrote:
> --- old/kernel/sched.c 2003-05-24 14:45:57.000000000 +0200
> +++ 2.5-mcp/kernel/sched.c 2003-05-24 16:18:42.000000000 +0200
> @@ -65,7 +65,7 @@
> * they expire.
> */
> #define MIN_TIMESLICE ( 10 * HZ / 1000)
> -#define MAX_TIMESLICE (200 * HZ / 1000)
> +#define MAX_TIMESLICE ( 10 * HZ / 1000)
> #define CHILD_PENALTY 50
> #define PARENT_PENALTY 100
> #define EXIT_WEIGHT 3
This looks highly suspicious as it essentially removes dynamic timeslice
sizing. If this fixes something, then dynamic timeslice heuristics are
going wrong somewhere that should be properly described and handled, not
this kind of shenanigan.
-- wli
next prev parent reply other threads:[~2003-05-24 14:15 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-05-23 13:00 I/O problems in 2.4.19/2.4.20/2.4.21-rc3 Christian Klose
2003-05-23 13:46 ` Christian Klose
2003-05-23 14:35 ` Marc-Christian Petersen
2003-05-24 14:19 ` Marc-Christian Petersen
2003-05-24 14:28 ` William Lee Irwin III [this message]
2003-05-25 0:43 ` Christian Klose
2003-05-25 0:46 ` Marc-Christian Petersen
2003-05-25 1:27 ` Con Kolivas
2003-05-25 4:28 ` William Lee Irwin III
2003-05-25 4:37 ` Con Kolivas
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