From: Wu Fengguang <fengguang.wu@intel.com>
To: Sean Jensen-Grey <seanj@xyke.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Mel Gorman <mel@csn.ul.ie>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
Dave Chinner <david@fromorbit.com>,
Chris Mason <chris.mason@oracle.com>,
Nick Piggin <npiggin@suse.de>, Rik van Riel <riel@redhat.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Jens Axboe <axboe@kernel.dk>,
Christoph Hellwig <hch@infradead.org>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Andrea Arcangeli <aarcange@redhat.com>,
pvz@pvz.pp.se, bgamari@gmail.com, larppaxyz@gmail.com,
seanj@xyke.com, kernel-bugs.dev1world@spamgourmet.com,
akatopaz@gmail.com, frankrq2009@gmx.com, thomas.pi@arcor.de,
spawels13@gmail.com, vshader@gmail.com, rockorequin@hotmail.com,
ylalym@gmail.com, theholyettlz@googlemail.com, hassium@yandex.ru
Subject: Re: [PATCH 6/6] vmscan: Kick flusher threads to clean pages when reclaim is encountering dirty pages
Date: Mon, 2 Aug 2010 10:30:08 +0800 [thread overview]
Message-ID: <20100802023008.GA13035@localhost> (raw)
In-Reply-To: <80868B70-B17D-4007-AA15-5C11F0F95353@xyke.com>
Hi Sean,
On Mon, Aug 02, 2010 at 10:17:27AM +0800, Sean Jensen-Grey wrote:
> Wu,
>
> Thank you for doing this. This still bites me on a weekly basis. I don't have much time to test the patches this week, but I should get access to an identical box week after next.
That's OK.
> BTW, I experience the issues even with 8-10GB of free ram. I have 12GB currently.
Thanks for the important information. It means the patches proposed
are not likely to help your case.
In Comment #47 for bug 12309, your kernel 2.6.27 is too old though. You may
well benefit from Jens' CFQ low latency improvements if switching to a recent
kernel.
Thanks,
Fengguang
WARNING: multiple messages have this Message-ID (diff)
From: Wu Fengguang <fengguang.wu@intel.com>
To: Sean Jensen-Grey <seanj@xyke.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Mel Gorman <mel@csn.ul.ie>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
Dave Chinner <david@fromorbit.com>,
Chris Mason <chris.mason@oracle.com>,
Nick Piggin <npiggin@suse.de>, Rik van Riel <riel@redhat.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Jens Axboe <axboe@kernel.dk>,
Christoph Hellwig <hch@infradead.org>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Andrea Arcangeli <aarcange@redhat.com>,
pvz@pvz.pp.se, bgamari@gmail.com, larppaxyz@gmail.com,
seanj@xyke.com, kernel-bugs.dev1world@spamgourmet.com,
akatopaz@gmail.com, frankrq2009@gmx.com, thomas.pi@arcor.de,
spawels13@gmail.com, vshader@gmail.com, rockorequin@hotmail.com,
ylalym@gmail.com,
Subject: Re: [PATCH 6/6] vmscan: Kick flusher threads to clean pages when reclaim is encountering dirty pages
Date: Mon, 2 Aug 2010 10:30:08 +0800 [thread overview]
Message-ID: <20100802023008.GA13035@localhost> (raw)
In-Reply-To: <80868B70-B17D-4007-AA15-5C11F0F95353@xyke.com>
Hi Sean,
On Mon, Aug 02, 2010 at 10:17:27AM +0800, Sean Jensen-Grey wrote:
> Wu,
>
> Thank you for doing this. This still bites me on a weekly basis. I don't have much time to test the patches this week, but I should get access to an identical box week after next.
That's OK.
> BTW, I experience the issues even with 8-10GB of free ram. I have 12GB currently.
Thanks for the important information. It means the patches proposed
are not likely to help your case.
In Comment #47 for bug 12309, your kernel 2.6.27 is too old though. You may
well benefit from Jens' CFQ low latency improvements if switching to a recent
kernel.
Thanks,
Fengguang
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
WARNING: multiple messages have this Message-ID (diff)
From: Wu Fengguang <fengguang.wu@intel.com>
To: Sean Jensen-Grey <seanj@xyke.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Mel Gorman <mel@csn.ul.ie>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
Dave Chinner <david@fromorbit.com>,
Chris Mason <chris.mason@oracle.com>,
Nick Piggin <npiggin@suse.de>, Rik van Riel <riel@redhat.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Jens Axboe <axboe@kernel.dk>,
Christoph Hellwig <hch@infradead.org>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Andrea Arcangeli <aarcange@redhat.com>,
pvz@pvz.pp.se, bgamari@gmail.com, larppaxyz@gmail.com,
kernel-bugs.dev1world@spamgourmet.com, akatopaz@gmail.com,
frankrq2009@gmx.com, thomas.pi@arcor.de, spawels13@gmail.com,
vshader@gmail.com, rockorequin@hotmail.com, ylalym@gmail.com,
theholyettlz@googlemail.com, hassium@yandex.ru
Subject: Re: [PATCH 6/6] vmscan: Kick flusher threads to clean pages when reclaim is encountering dirty pages
Date: Mon, 2 Aug 2010 10:30:08 +0800 [thread overview]
Message-ID: <20100802023008.GA13035@localhost> (raw)
In-Reply-To: <80868B70-B17D-4007-AA15-5C11F0F95353@xyke.com>
Hi Sean,
On Mon, Aug 02, 2010 at 10:17:27AM +0800, Sean Jensen-Grey wrote:
> Wu,
>
> Thank you for doing this. This still bites me on a weekly basis. I don't have much time to test the patches this week, but I should get access to an identical box week after next.
That's OK.
> BTW, I experience the issues even with 8-10GB of free ram. I have 12GB currently.
Thanks for the important information. It means the patches proposed
are not likely to help your case.
In Comment #47 for bug 12309, your kernel 2.6.27 is too old though. You may
well benefit from Jens' CFQ low latency improvements if switching to a recent
kernel.
Thanks,
Fengguang
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2010-08-02 2:30 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-30 13:36 [PATCH 0/6] Reduce writeback from page reclaim context V6 Mel Gorman
2010-07-30 13:36 ` Mel Gorman
2010-07-30 13:36 ` [PATCH 1/6] vmscan: tracing: Roll up of patches currently in mmotm Mel Gorman
2010-07-30 13:36 ` Mel Gorman
2010-07-30 14:04 ` Frederic Weisbecker
2010-07-30 14:04 ` Frederic Weisbecker
2010-07-30 14:12 ` Mel Gorman
2010-07-30 14:12 ` Mel Gorman
2010-07-30 14:15 ` Frederic Weisbecker
2010-07-30 14:15 ` Frederic Weisbecker
2010-08-14 20:04 ` perf scripting Christoph Hellwig
2010-09-16 12:08 ` Frederic Weisbecker
2010-09-17 10:32 ` Masami Hiramatsu
2010-09-18 5:04 ` Tom Zanussi
2010-07-30 13:36 ` [PATCH 2/6] vmscan: tracing: Update trace event to track if page reclaim IO is for anon or file pages Mel Gorman
2010-07-30 13:36 ` Mel Gorman
2010-07-30 13:36 ` [PATCH 3/6] vmscan: tracing: Update post-processing script to distinguish between anon and file IO from page reclaim Mel Gorman
2010-07-30 13:36 ` Mel Gorman
2010-07-30 13:36 ` [PATCH 4/6] vmscan: tracing: Correct units in post-processing script Mel Gorman
2010-07-30 13:36 ` Mel Gorman
2010-07-30 13:36 ` [PATCH 5/6] vmscan: Do not writeback filesystem pages in direct reclaim Mel Gorman
2010-07-30 13:36 ` Mel Gorman
2010-08-05 6:59 ` KOSAKI Motohiro
2010-08-05 6:59 ` KOSAKI Motohiro
2010-08-05 14:15 ` Mel Gorman
2010-08-05 14:15 ` Mel Gorman
2010-07-30 13:37 ` [PATCH 6/6] vmscan: Kick flusher threads to clean pages when reclaim is encountering dirty pages Mel Gorman
2010-07-30 13:37 ` Mel Gorman
2010-07-30 22:06 ` Andrew Morton
2010-07-30 22:06 ` Andrew Morton
2010-07-30 22:40 ` Trond Myklebust
2010-07-30 22:40 ` Trond Myklebust
2010-08-01 8:19 ` KOSAKI Motohiro
2010-08-01 8:19 ` KOSAKI Motohiro
2010-08-01 16:21 ` Trond Myklebust
2010-08-01 16:21 ` Trond Myklebust
2010-08-02 7:57 ` KOSAKI Motohiro
2010-08-02 7:57 ` KOSAKI Motohiro
2010-07-31 10:33 ` Mel Gorman
2010-07-31 10:33 ` Mel Gorman
2010-08-02 18:31 ` Jan Kara
2010-08-02 18:31 ` Jan Kara
2010-08-01 11:15 ` Wu Fengguang
2010-08-01 11:15 ` Wu Fengguang
2010-08-01 11:56 ` Wu Fengguang
2010-08-01 11:56 ` Wu Fengguang
2010-08-01 13:03 ` Wu Fengguang
2010-08-01 13:03 ` Wu Fengguang
2010-08-01 13:03 ` Wu Fengguang
[not found] ` <80868B70-B17D-4007-AA15-5C11F0F95353@xyke.com>
2010-08-02 2:30 ` Wu Fengguang [this message]
2010-08-02 2:30 ` Wu Fengguang
2010-08-02 2:30 ` Wu Fengguang
2010-08-05 6:45 ` KOSAKI Motohiro
2010-08-05 6:45 ` KOSAKI Motohiro
2010-08-05 14:09 ` Mel Gorman
2010-08-05 14:09 ` Mel Gorman
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