From: Rik van Riel <riel@redhat.com>
To: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Mike Galbraith <efault@gmx.de>,
lwoodman@redhat.com, akpm@linux-foundation.org,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
minchan.kim@gmail.com
Subject: Re: [PATCH 4/8] Use prepare_to_wait_exclusive() instead prepare_to_wait()
Date: Tue, 15 Dec 2009 21:44:10 -0500 [thread overview]
Message-ID: <4B28497A.90606@redhat.com> (raw)
In-Reply-To: <20091216093533.CDF1.A69D9226@jp.fujitsu.com>
On 12/15/2009 07:48 PM, KOSAKI Motohiro wrote:
> if we really need wait a bit, Mike's wake_up_batch is best, I think.
> It mean
> - if another CPU is idle, wake up one process soon. iow, it don't
> make meaningless idle.
> - if another CPU is busy, woken process don't start to run awhile.
> then, zone_watermark_ok() can calculate correct value.
Agreed, that should work great.
--
All rights reversed.
WARNING: multiple messages have this Message-ID (diff)
From: Rik van Riel <riel@redhat.com>
To: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Mike Galbraith <efault@gmx.de>,
lwoodman@redhat.com, akpm@linux-foundation.org,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
minchan.kim@gmail.com
Subject: Re: [PATCH 4/8] Use prepare_to_wait_exclusive() instead prepare_to_wait()
Date: Tue, 15 Dec 2009 21:44:10 -0500 [thread overview]
Message-ID: <4B28497A.90606@redhat.com> (raw)
In-Reply-To: <20091216093533.CDF1.A69D9226@jp.fujitsu.com>
On 12/15/2009 07:48 PM, KOSAKI Motohiro wrote:
> if we really need wait a bit, Mike's wake_up_batch is best, I think.
> It mean
> - if another CPU is idle, wake up one process soon. iow, it don't
> make meaningless idle.
> - if another CPU is busy, woken process don't start to run awhile.
> then, zone_watermark_ok() can calculate correct value.
Agreed, that should work great.
--
All rights reversed.
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next prev parent reply other threads:[~2009-12-16 2:44 UTC|newest]
Thread overview: 131+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-11 21:46 [PATCH v2] vmscan: limit concurrent reclaimers in shrink_zone Rik van Riel
2009-12-11 21:46 ` Rik van Riel
2009-12-14 0:14 ` Minchan Kim
2009-12-14 0:14 ` Minchan Kim
2009-12-14 4:09 ` Rik van Riel
2009-12-14 4:09 ` Rik van Riel
2009-12-14 4:19 ` Minchan Kim
2009-12-14 4:19 ` Minchan Kim
2009-12-14 4:29 ` Rik van Riel
2009-12-14 4:29 ` Rik van Riel
2009-12-14 5:00 ` Minchan Kim
2009-12-14 5:00 ` Minchan Kim
2009-12-14 12:22 ` KOSAKI Motohiro
2009-12-14 12:22 ` KOSAKI Motohiro
2009-12-14 12:23 ` [cleanup][PATCH 1/8] vmscan: Make shrink_zone_begin/end helper function KOSAKI Motohiro
2009-12-14 12:23 ` KOSAKI Motohiro
2009-12-14 14:34 ` Rik van Riel
2009-12-14 14:34 ` Rik van Riel
2009-12-14 22:39 ` Minchan Kim
2009-12-14 22:39 ` Minchan Kim
2009-12-14 12:24 ` [PATCH 2/8] Mark sleep_on as deprecated KOSAKI Motohiro
2009-12-14 12:24 ` KOSAKI Motohiro
2009-12-14 13:03 ` Christoph Hellwig
2009-12-14 13:03 ` Christoph Hellwig
2009-12-14 16:04 ` Arjan van de Ven
2009-12-14 16:04 ` Arjan van de Ven
2009-12-14 14:34 ` Rik van Riel
2009-12-14 14:34 ` Rik van Riel
2009-12-14 22:44 ` Minchan Kim
2009-12-14 22:44 ` Minchan Kim
2009-12-14 12:29 ` [PATCH 3/8] Don't use sleep_on() KOSAKI Motohiro
2009-12-14 12:29 ` KOSAKI Motohiro
2009-12-14 14:35 ` Rik van Riel
2009-12-14 14:35 ` Rik van Riel
2009-12-14 22:46 ` Minchan Kim
2009-12-14 22:46 ` Minchan Kim
2009-12-14 12:30 ` [PATCH 4/8] Use prepare_to_wait_exclusive() instead prepare_to_wait() KOSAKI Motohiro
2009-12-14 12:30 ` KOSAKI Motohiro
2009-12-14 14:33 ` Rik van Riel
2009-12-14 14:33 ` Rik van Riel
2009-12-15 0:45 ` KOSAKI Motohiro
2009-12-15 0:45 ` KOSAKI Motohiro
2009-12-15 5:32 ` Mike Galbraith
2009-12-15 5:32 ` Mike Galbraith
2009-12-15 8:28 ` Mike Galbraith
2009-12-15 8:28 ` Mike Galbraith
2009-12-15 14:36 ` Mike Galbraith
2009-12-15 14:36 ` Mike Galbraith
2009-12-15 14:58 ` Rik van Riel
2009-12-15 14:58 ` Rik van Riel
2009-12-15 18:17 ` Mike Galbraith
2009-12-15 18:17 ` Mike Galbraith
2009-12-15 18:43 ` Mike Galbraith
2009-12-15 18:43 ` Mike Galbraith
2009-12-15 19:33 ` Rik van Riel
2009-12-15 19:33 ` Rik van Riel
2009-12-16 0:48 ` KOSAKI Motohiro
2009-12-16 0:48 ` KOSAKI Motohiro
2009-12-16 2:44 ` Rik van Riel [this message]
2009-12-16 2:44 ` Rik van Riel
2009-12-16 5:43 ` Mike Galbraith
2009-12-16 5:43 ` Mike Galbraith
2009-12-14 23:03 ` Minchan Kim
2009-12-14 23:03 ` Minchan Kim
2009-12-14 12:30 ` [PATCH 5/8] Use io_schedule() instead schedule() KOSAKI Motohiro
2009-12-14 12:30 ` KOSAKI Motohiro
2009-12-14 14:37 ` Rik van Riel
2009-12-14 14:37 ` Rik van Riel
2009-12-14 23:46 ` Minchan Kim
2009-12-14 23:46 ` Minchan Kim
2009-12-15 0:56 ` KOSAKI Motohiro
2009-12-15 0:56 ` KOSAKI Motohiro
2009-12-15 1:13 ` Minchan Kim
2009-12-15 1:13 ` Minchan Kim
2009-12-14 12:31 ` [PATCH 6/8] Stop reclaim quickly when the task reclaimed enough lots pages KOSAKI Motohiro
2009-12-14 12:31 ` KOSAKI Motohiro
2009-12-14 14:45 ` Rik van Riel
2009-12-14 14:45 ` Rik van Riel
2009-12-14 23:51 ` KOSAKI Motohiro
2009-12-14 23:51 ` KOSAKI Motohiro
2009-12-15 0:11 ` Minchan Kim
2009-12-15 0:11 ` Minchan Kim
2009-12-15 0:35 ` KOSAKI Motohiro
2009-12-15 0:35 ` KOSAKI Motohiro
2009-12-14 12:32 ` [PATCH 7/8] Use TASK_KILLABLE instead TASK_UNINTERRUPTIBLE KOSAKI Motohiro
2009-12-14 12:32 ` KOSAKI Motohiro
2009-12-14 14:47 ` Rik van Riel
2009-12-14 14:47 ` Rik van Riel
2009-12-14 23:52 ` Minchan Kim
2009-12-14 23:52 ` Minchan Kim
2009-12-14 12:32 ` [PATCH 8/8] mm: Give up allocation if the task have fatal signal KOSAKI Motohiro
2009-12-14 12:32 ` KOSAKI Motohiro
2009-12-14 14:48 ` Rik van Riel
2009-12-14 14:48 ` Rik van Riel
2009-12-14 23:54 ` Minchan Kim
2009-12-14 23:54 ` Minchan Kim
2009-12-15 0:50 ` KOSAKI Motohiro
2009-12-15 0:50 ` KOSAKI Motohiro
2009-12-15 1:03 ` Minchan Kim
2009-12-15 1:03 ` Minchan Kim
2009-12-15 1:16 ` KOSAKI Motohiro
2009-12-15 1:16 ` KOSAKI Motohiro
2009-12-14 12:40 ` [PATCH v2] vmscan: limit concurrent reclaimers in shrink_zone KOSAKI Motohiro
2009-12-14 12:40 ` KOSAKI Motohiro
2009-12-14 17:08 ` Larry Woodman
2009-12-14 17:08 ` Larry Woodman
2009-12-15 0:49 ` KOSAKI Motohiro
2009-12-15 0:49 ` KOSAKI Motohiro
[not found] ` <20091217193818.9FA9.A69D9226@jp.fujitsu.com>
2009-12-17 12:23 ` FWD: " Larry Woodman
2009-12-17 14:43 ` Rik van Riel
2009-12-17 14:43 ` Rik van Riel
2009-12-17 19:55 ` Rik van Riel
2009-12-17 19:55 ` Rik van Riel
2009-12-17 21:05 ` Hugh Dickins
2009-12-17 21:05 ` Hugh Dickins
2009-12-17 22:52 ` Rik van Riel
2009-12-17 22:52 ` Rik van Riel
2009-12-18 16:23 ` Andrea Arcangeli
2009-12-18 16:23 ` Andrea Arcangeli
2009-12-18 17:43 ` Rik van Riel
2009-12-18 17:43 ` Rik van Riel
2009-12-18 10:27 ` KOSAKI Motohiro
2009-12-18 10:27 ` KOSAKI Motohiro
2009-12-18 14:09 ` Rik van Riel
2009-12-18 14:09 ` Rik van Riel
2009-12-18 13:38 ` Avi Kivity
2009-12-18 13:38 ` Avi Kivity
2009-12-18 14:12 ` Rik van Riel
2009-12-18 14:12 ` Rik van Riel
2009-12-18 14:13 ` Avi Kivity
2009-12-18 14:13 ` Avi Kivity
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