From: Mike Galbraith <efault@gmx.de>
To: "Chen, Kenneth W" <kenneth.w.chen@intel.com>
Cc: "'Con Kolivas'" <kernel@kolivas.org>,
tim.c.chen@linux.intel.com, linux-kernel@vger.kernel.org,
mingo@elte.hu, Andrew Morton <akpm@osdl.org>
Subject: RE: Regression seen for patch "sched:dont decrease idle sleep avg"
Date: Tue, 16 May 2006 06:07:10 +0200 [thread overview]
Message-ID: <1147752430.7636.10.camel@homer> (raw)
In-Reply-To: <4t16i2$12rqnu@orsmga001.jf.intel.com>
On Mon, 2006-05-15 at 12:01 -0700, Chen, Kenneth W wrote:
> [patch] sched: update comments in priority calculation w.r.t. implementation.
>
> Signed-off-by: Ken Chen <kenneth.w.chen@intel.com>
>
> --- ./kernel/sched.c.orig 2006-05-15 12:24:02.000000000 -0700
> +++ ./kernel/sched.c 2006-05-15 12:37:16.000000000 -0700
> @@ -746,10 +746,12 @@ static int recalc_task_prio(task_t *p, u
> if (likely(sleep_time > 0)) {
> /*
> * User tasks that sleep a long time are categorised as
> - * idle. They will only have their sleep_avg increased to a
> - * level that makes them just interactive priority to stay
> - * active yet prevent them suddenly becoming cpu hogs and
> - * starving other processes.
> + * idle. If they sleep longer than INTERACTIVE_SLEEP, it
> + * will have its priority boosted to minimum MAX_BONUS-1.
> + * For short sleep, they will only have their sleep_avg
> + * increased to a level that makes them just interactive
> + * priority to stay active yet prevent them suddenly becoming
> + * cpu hogs and starving other processes.
> */
> if (p->mm && sleep_time > INTERACTIVE_SLEEP(p)) {
> unsigned long ceiling;
This comment still doesn't reflect what the code does. Please just
delete the last four lines, they are incorrect.
-Mike
next prev parent reply other threads:[~2006-05-16 4:06 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-08 23:18 Tim Chen
2006-05-09 0:43 ` Con Kolivas
2006-05-09 1:07 ` Martin Bligh
2006-05-12 0:04 ` Chen, Kenneth W
2006-05-13 12:27 ` Andrew Morton
2006-05-13 13:07 ` Mike Galbraith
2006-05-14 16:03 ` Con Kolivas
2006-05-15 19:01 ` Chen, Kenneth W
2006-05-15 23:45 ` Con Kolivas
2006-05-16 1:22 ` Chen, Kenneth W
2006-05-16 1:44 ` Con Kolivas
2006-05-16 4:10 ` Mike Galbraith
2006-05-16 23:32 ` Tim Chen
2006-05-17 4:25 ` Mike Galbraith
2006-05-17 4:45 ` Peter Williams
2006-05-17 5:24 ` Mike Galbraith
2006-05-17 8:23 ` Con Kolivas
2006-05-17 9:49 ` Mike Galbraith
2006-05-17 10:25 ` Con Kolivas
2006-05-17 11:42 ` Mike Galbraith
2006-05-17 12:46 ` Con Kolivas
2006-05-17 13:41 ` Mike Galbraith
2006-05-17 15:10 ` Con Kolivas
2006-05-17 17:21 ` Ray Lee
2006-05-17 19:33 ` Chen, Kenneth W
2006-05-18 0:35 ` Con Kolivas
2006-05-18 1:10 ` Chen, Kenneth W
2006-05-18 1:38 ` Con Kolivas
2006-05-18 5:44 ` Mike Galbraith
2006-05-18 5:52 ` Con Kolivas
2006-05-18 7:04 ` Mike Galbraith
2006-05-18 12:59 ` Mike Galbraith
2006-05-19 1:10 ` Con Kolivas
2006-05-18 23:17 ` Chen, Kenneth W
2006-05-19 1:30 ` [PATCH] sched: fix interactive ceiling code Con Kolivas
2006-05-19 2:02 ` Mike Galbraith
2006-05-19 9:40 ` Ingo Molnar
2006-05-19 14:37 ` Chen, Kenneth W
2006-05-19 16:19 ` tim_c_chen
2006-05-18 23:34 ` Regression seen for patch "sched:dont decrease idle sleep avg" Chen, Kenneth W
2006-05-19 1:07 ` Con Kolivas
2006-05-16 4:07 ` Mike Galbraith [this message]
2006-05-18 4:01 Al Boldi
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