From: Rik van Riel <riel@redhat.com>
To: Mel Gorman <mgorman@suse.de>
Cc: Linux-MM <linux-mm@kvack.org>, Minchan Kim <minchan@kernel.org>,
Jim Schutt <jaschut@sandia.gov>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 2/6] mm: vmscan: Scale number of pages reclaimed by reclaim/compaction based on failures
Date: Tue, 07 Aug 2012 09:23:38 -0400 [thread overview]
Message-ID: <502116DA.4040409@redhat.com> (raw)
In-Reply-To: <1344342677-5845-3-git-send-email-mgorman@suse.de>
On 08/07/2012 08:31 AM, Mel Gorman wrote:
> If allocation fails after compaction then compaction may be deferred for
> a number of allocation attempts. If there are subsequent failures,
> compact_defer_shift is increased to defer for longer periods. This patch
> uses that information to scale the number of pages reclaimed with
> compact_defer_shift until allocations succeed again.
>
> Signed-off-by: Mel Gorman<mgorman@suse.de>
Acked-by: Rik van Riel <riel@redhat.com>
--
All rights reversed
WARNING: multiple messages have this Message-ID (diff)
From: Rik van Riel <riel@redhat.com>
To: Mel Gorman <mgorman@suse.de>
Cc: Linux-MM <linux-mm@kvack.org>, Minchan Kim <minchan@kernel.org>,
Jim Schutt <jaschut@sandia.gov>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 2/6] mm: vmscan: Scale number of pages reclaimed by reclaim/compaction based on failures
Date: Tue, 07 Aug 2012 09:23:38 -0400 [thread overview]
Message-ID: <502116DA.4040409@redhat.com> (raw)
In-Reply-To: <1344342677-5845-3-git-send-email-mgorman@suse.de>
On 08/07/2012 08:31 AM, Mel Gorman wrote:
> If allocation fails after compaction then compaction may be deferred for
> a number of allocation attempts. If there are subsequent failures,
> compact_defer_shift is increased to defer for longer periods. This patch
> uses that information to scale the number of pages reclaimed with
> compact_defer_shift until allocations succeed again.
>
> Signed-off-by: Mel Gorman<mgorman@suse.de>
Acked-by: Rik van Riel <riel@redhat.com>
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All rights reversed
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next prev parent reply other threads:[~2012-08-07 13:23 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-07 12:31 [RFC PATCH 0/6] Improve hugepage allocation success rates under load Mel Gorman
2012-08-07 12:31 ` Mel Gorman
2012-08-07 12:31 ` [PATCH 1/6] mm: compaction: Update comment in try_to_compact_pages Mel Gorman
2012-08-07 12:31 ` Mel Gorman
2012-08-07 13:19 ` Rik van Riel
2012-08-07 13:19 ` Rik van Riel
2012-08-07 23:25 ` Minchan Kim
2012-08-07 23:25 ` Minchan Kim
2012-08-07 12:31 ` [PATCH 2/6] mm: vmscan: Scale number of pages reclaimed by reclaim/compaction based on failures Mel Gorman
2012-08-07 12:31 ` Mel Gorman
2012-08-07 13:23 ` Rik van Riel [this message]
2012-08-07 13:23 ` Rik van Riel
2012-08-08 1:48 ` Minchan Kim
2012-08-08 1:48 ` Minchan Kim
2012-08-08 7:55 ` Mel Gorman
2012-08-08 7:55 ` Mel Gorman
2012-08-08 8:27 ` Minchan Kim
2012-08-08 8:27 ` Minchan Kim
2012-08-08 8:51 ` Mel Gorman
2012-08-08 8:51 ` Mel Gorman
2012-08-08 23:51 ` Minchan Kim
2012-08-08 23:51 ` Minchan Kim
2012-08-09 7:49 ` Mel Gorman
2012-08-09 7:49 ` Mel Gorman
2012-08-09 8:27 ` Minchan Kim
2012-08-09 8:27 ` Minchan Kim
2012-08-09 9:20 ` Mel Gorman
2012-08-09 9:20 ` Mel Gorman
2012-08-09 20:29 ` Rik van Riel
2012-08-09 20:29 ` Rik van Riel
2012-08-10 8:14 ` Mel Gorman
2012-08-10 8:14 ` Mel Gorman
2012-08-09 23:27 ` Minchan Kim
2012-08-09 23:27 ` Minchan Kim
2012-08-10 8:34 ` Mel Gorman
2012-08-10 8:34 ` Mel Gorman
2012-08-10 8:48 ` Minchan Kim
2012-08-10 8:48 ` Minchan Kim
2012-08-07 12:31 ` [PATCH 3/6] mm: kswapd: Continue reclaiming for reclaim/compaction if the minimum number of pages have not been reclaimed Mel Gorman
2012-08-07 12:31 ` Mel Gorman
2012-08-07 13:26 ` Rik van Riel
2012-08-07 13:26 ` Rik van Riel
2012-08-08 2:07 ` Minchan Kim
2012-08-08 2:07 ` Minchan Kim
2012-08-08 9:07 ` Mel Gorman
2012-08-08 9:07 ` Mel Gorman
2012-08-08 9:58 ` Mel Gorman
2012-08-08 9:58 ` Mel Gorman
2012-08-07 12:31 ` [PATCH 4/6] mm: compaction: Capture a suitable high-order page immediately when it is made available Mel Gorman
2012-08-07 12:31 ` Mel Gorman
2012-08-07 13:30 ` Rik van Riel
2012-08-07 13:30 ` Rik van Riel
2012-08-07 12:31 ` [PATCH 5/6] mm: have order > 0 compaction start off where it left Mel Gorman
2012-08-07 12:31 ` Mel Gorman
2012-08-07 12:31 ` [PATCH 6/6] mm: have order > 0 compaction start near a pageblock with free pages Mel Gorman
2012-08-07 12:31 ` Mel Gorman
2012-08-07 14:45 ` Rik van Riel
2012-08-07 14:45 ` Rik van Riel
2012-08-07 14:52 ` Mel Gorman
2012-08-07 14:52 ` Mel Gorman
2012-08-07 15:20 ` Jim Schutt
2012-08-07 15:20 ` Jim Schutt
2012-08-07 15:45 ` Mel Gorman
2012-08-07 15:45 ` Mel Gorman
2012-08-08 4:36 ` Minchan Kim
2012-08-08 4:36 ` Minchan Kim
2012-08-08 10:18 ` Mel Gorman
2012-08-08 10:18 ` Mel Gorman
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