From: Minchan Kim <minchan.kim@gmail.com>
To: Mel Gorman <mgorman@suse.de>
Cc: Rik van Riel <riel@redhat.com>, Jan Kara <jack@suse.cz>,
LKML <linux-kernel@vger.kernel.org>, XFS <xfs@oss.sgi.com>,
Christoph Hellwig <hch@infradead.org>,
Linux-MM <linux-mm@kvack.org>,
Wu Fengguang <fengguang.wu@intel.com>,
Johannes Weiner <jweiner@redhat.com>
Subject: Re: [PATCH 5/8] mm: vmscan: Do not writeback filesystem pages in kswapd except in high priority
Date: Mon, 1 Aug 2011 00:11:40 +0900 [thread overview]
Message-ID: <20110731151140.GC1735@barrios-desktop> (raw)
In-Reply-To: <1311265730-5324-6-git-send-email-mgorman@suse.de>
On Thu, Jul 21, 2011 at 05:28:47PM +0100, Mel Gorman wrote:
> It is preferable that no dirty pages are dispatched for cleaning from
> the page reclaim path. At normal priorities, this patch prevents kswapd
> writing pages.
>
> However, page reclaim does have a requirement that pages be freed
> in a particular zone. If it is failing to make sufficient progress
> (reclaiming < SWAP_CLUSTER_MAX at any priority priority), the priority
> is raised to scan more pages. A priority of DEF_PRIORITY - 3 is
> considered to tbe the point where kswapd is getting into trouble
> reclaiming pages. If this priority is reached, kswapd will dispatch
> pages for writing.
>
> Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
--
Kind regards,
Minchan Kim
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WARNING: multiple messages have this Message-ID (diff)
From: Minchan Kim <minchan.kim@gmail.com>
To: Mel Gorman <mgorman@suse.de>
Cc: Linux-MM <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>, XFS <xfs@oss.sgi.com>,
Dave Chinner <david@fromorbit.com>,
Christoph Hellwig <hch@infradead.org>,
Johannes Weiner <jweiner@redhat.com>,
Wu Fengguang <fengguang.wu@intel.com>, Jan Kara <jack@suse.cz>,
Rik van Riel <riel@redhat.com>
Subject: Re: [PATCH 5/8] mm: vmscan: Do not writeback filesystem pages in kswapd except in high priority
Date: Mon, 1 Aug 2011 00:11:40 +0900 [thread overview]
Message-ID: <20110731151140.GC1735@barrios-desktop> (raw)
In-Reply-To: <1311265730-5324-6-git-send-email-mgorman@suse.de>
On Thu, Jul 21, 2011 at 05:28:47PM +0100, Mel Gorman wrote:
> It is preferable that no dirty pages are dispatched for cleaning from
> the page reclaim path. At normal priorities, this patch prevents kswapd
> writing pages.
>
> However, page reclaim does have a requirement that pages be freed
> in a particular zone. If it is failing to make sufficient progress
> (reclaiming < SWAP_CLUSTER_MAX at any priority priority), the priority
> is raised to scan more pages. A priority of DEF_PRIORITY - 3 is
> considered to tbe the point where kswapd is getting into trouble
> reclaiming pages. If this priority is reached, kswapd will dispatch
> pages for writing.
>
> Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
--
Kind regards,
Minchan Kim
WARNING: multiple messages have this Message-ID (diff)
From: Minchan Kim <minchan.kim@gmail.com>
To: Mel Gorman <mgorman@suse.de>
Cc: Linux-MM <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>, XFS <xfs@oss.sgi.com>,
Dave Chinner <david@fromorbit.com>,
Christoph Hellwig <hch@infradead.org>,
Johannes Weiner <jweiner@redhat.com>,
Wu Fengguang <fengguang.wu@intel.com>, Jan Kara <jack@suse.cz>,
Rik van Riel <riel@redhat.com>
Subject: Re: [PATCH 5/8] mm: vmscan: Do not writeback filesystem pages in kswapd except in high priority
Date: Mon, 1 Aug 2011 00:11:40 +0900 [thread overview]
Message-ID: <20110731151140.GC1735@barrios-desktop> (raw)
In-Reply-To: <1311265730-5324-6-git-send-email-mgorman@suse.de>
On Thu, Jul 21, 2011 at 05:28:47PM +0100, Mel Gorman wrote:
> It is preferable that no dirty pages are dispatched for cleaning from
> the page reclaim path. At normal priorities, this patch prevents kswapd
> writing pages.
>
> However, page reclaim does have a requirement that pages be freed
> in a particular zone. If it is failing to make sufficient progress
> (reclaiming < SWAP_CLUSTER_MAX at any priority priority), the priority
> is raised to scan more pages. A priority of DEF_PRIORITY - 3 is
> considered to tbe the point where kswapd is getting into trouble
> reclaiming pages. If this priority is reached, kswapd will dispatch
> pages for writing.
>
> Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
--
Kind regards,
Minchan Kim
--
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next prev parent reply other threads:[~2011-07-31 15:11 UTC|newest]
Thread overview: 129+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-21 16:28 [RFC PATCH 0/8] Reduce filesystem writeback from page reclaim v2 Mel Gorman
2011-07-21 16:28 ` Mel Gorman
2011-07-21 16:28 ` Mel Gorman
2011-07-21 16:28 ` [PATCH 1/8] mm: vmscan: Do not writeback filesystem pages in direct reclaim Mel Gorman
2011-07-21 16:28 ` Mel Gorman
2011-07-21 16:28 ` Mel Gorman
2011-07-31 15:06 ` Minchan Kim
2011-07-31 15:06 ` Minchan Kim
2011-07-31 15:06 ` Minchan Kim
2011-08-02 11:21 ` Mel Gorman
2011-08-02 11:21 ` Mel Gorman
2011-08-02 11:21 ` Mel Gorman
2011-07-21 16:28 ` [PATCH 2/8] xfs: Warn if direct reclaim tries to writeback pages Mel Gorman
2011-07-21 16:28 ` Mel Gorman
2011-07-21 16:28 ` Mel Gorman
2011-07-24 11:32 ` Christoph Hellwig
2011-07-24 11:32 ` Christoph Hellwig
2011-07-24 11:32 ` Christoph Hellwig
2011-07-25 8:19 ` Mel Gorman
2011-07-25 8:19 ` Mel Gorman
2011-07-25 8:19 ` Mel Gorman
2011-07-21 16:28 ` [PATCH 3/8] ext4: " Mel Gorman
2011-07-21 16:28 ` Mel Gorman
2011-07-21 16:28 ` Mel Gorman
2011-08-03 10:58 ` Johannes Weiner
2011-08-03 10:58 ` Johannes Weiner
2011-08-03 10:58 ` Johannes Weiner
2011-08-03 11:06 ` Johannes Weiner
2011-08-03 11:06 ` Johannes Weiner
2011-08-03 11:06 ` Johannes Weiner
2011-08-03 13:44 ` Mel Gorman
2011-08-03 13:44 ` Mel Gorman
2011-08-03 13:44 ` Mel Gorman
2011-08-03 14:00 ` Johannes Weiner
2011-08-03 14:00 ` Johannes Weiner
2011-08-03 14:00 ` Johannes Weiner
2011-08-03 14:18 ` Christoph Hellwig
2011-08-03 14:18 ` Christoph Hellwig
2011-08-03 14:18 ` Christoph Hellwig
2011-08-03 14:35 ` Mel Gorman
2011-08-03 14:35 ` Mel Gorman
2011-08-03 14:35 ` Mel Gorman
2011-07-21 16:28 ` [PATCH 4/8] btrfs: " Mel Gorman
2011-07-21 16:28 ` Mel Gorman
2011-07-21 16:28 ` Mel Gorman
2011-08-03 11:10 ` Johannes Weiner
2011-08-03 11:10 ` Johannes Weiner
2011-08-03 11:10 ` Johannes Weiner
2011-08-03 13:45 ` Mel Gorman
2011-08-03 13:45 ` Mel Gorman
2011-08-03 13:45 ` Mel Gorman
2011-07-21 16:28 ` [PATCH 5/8] mm: vmscan: Do not writeback filesystem pages in kswapd except in high priority Mel Gorman
2011-07-21 16:28 ` Mel Gorman
2011-07-21 16:28 ` Mel Gorman
2011-07-31 15:11 ` Minchan Kim [this message]
2011-07-31 15:11 ` Minchan Kim
2011-07-31 15:11 ` Minchan Kim
2011-07-21 16:28 ` [PATCH 6/8] mm: vmscan: Throttle reclaim if encountering too many dirty pages under writeback Mel Gorman
2011-07-21 16:28 ` Mel Gorman
2011-07-21 16:28 ` Mel Gorman
2011-07-31 15:17 ` Minchan Kim
2011-07-31 15:17 ` Minchan Kim
2011-07-31 15:17 ` Minchan Kim
2011-08-03 11:19 ` Johannes Weiner
2011-08-03 11:19 ` Johannes Weiner
2011-08-03 11:19 ` Johannes Weiner
2011-08-03 13:56 ` Mel Gorman
2011-08-03 13:56 ` Mel Gorman
2011-08-03 13:56 ` Mel Gorman
2011-07-21 16:28 ` [PATCH 7/8] mm: vmscan: Immediately reclaim end-of-LRU dirty pages when writeback completes Mel Gorman
2011-07-21 16:28 ` Mel Gorman
2011-07-21 16:28 ` Mel Gorman
2011-07-22 12:53 ` Peter Zijlstra
2011-07-22 12:53 ` Peter Zijlstra
2011-07-22 12:53 ` Peter Zijlstra
2011-07-22 13:23 ` Mel Gorman
2011-07-22 13:23 ` Mel Gorman
2011-07-22 13:23 ` Mel Gorman
2011-07-31 15:24 ` Minchan Kim
2011-07-31 15:24 ` Minchan Kim
2011-07-31 15:24 ` Minchan Kim
2011-08-02 11:25 ` Mel Gorman
2011-08-02 11:25 ` Mel Gorman
2011-08-02 11:25 ` Mel Gorman
2011-08-03 11:26 ` Johannes Weiner
2011-08-03 11:26 ` Johannes Weiner
2011-08-03 11:26 ` Johannes Weiner
2011-08-03 13:57 ` Mel Gorman
2011-08-03 13:57 ` Mel Gorman
2011-08-03 13:57 ` Mel Gorman
2011-07-21 16:28 ` [PATCH 8/8] mm: vmscan: Do not writeback filesystem pages from kswapd Mel Gorman
2011-07-21 16:28 ` Mel Gorman
2011-07-21 16:28 ` Mel Gorman
2011-07-22 12:57 ` Peter Zijlstra
2011-07-22 12:57 ` Peter Zijlstra
2011-07-22 12:57 ` Peter Zijlstra
2011-07-22 13:31 ` Mel Gorman
2011-07-22 13:31 ` Mel Gorman
2011-07-22 13:31 ` Mel Gorman
2011-08-03 11:37 ` Johannes Weiner
2011-08-03 11:37 ` Johannes Weiner
2011-08-03 11:37 ` Johannes Weiner
2011-08-03 13:58 ` Mel Gorman
2011-08-03 13:58 ` Mel Gorman
2011-08-03 13:58 ` Mel Gorman
2011-07-26 11:20 ` [RFC PATCH 0/8] Reduce filesystem writeback from page reclaim v2 Dave Chinner
2011-07-26 11:20 ` Dave Chinner
2011-07-26 11:20 ` Dave Chinner
2011-07-27 4:32 ` Minchan Kim
2011-07-27 4:32 ` Minchan Kim
2011-07-27 4:32 ` Minchan Kim
2011-07-27 7:37 ` Mel Gorman
2011-07-27 7:37 ` Mel Gorman
2011-07-27 7:37 ` Mel Gorman
2011-07-27 16:18 ` Minchan Kim
2011-07-27 16:18 ` Minchan Kim
2011-07-27 16:18 ` Minchan Kim
2011-07-28 11:38 ` Mel Gorman
2011-07-28 11:38 ` Mel Gorman
2011-07-28 11:38 ` Mel Gorman
2011-07-29 9:48 ` Minchan Kim
2011-07-29 9:48 ` Minchan Kim
2011-07-29 9:48 ` Minchan Kim
2011-07-29 9:50 ` Minchan Kim
2011-07-29 9:50 ` Minchan Kim
2011-07-29 9:50 ` Minchan Kim
2011-07-29 13:41 ` Andrew Lutomirski
2011-07-29 13:41 ` Andrew Lutomirski
2011-07-29 13:41 ` Andrew Lutomirski
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