From: Rik van Riel <riel@redhat.com>
To: Mel Gorman <mgorman@suse.de>
Cc: Minchan Kim <minchan@kernel.org>, Linux-MM <linux-mm@kvack.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: Thu, 09 Aug 2012 16:29:57 -0400 [thread overview]
Message-ID: <50241DC5.7090704@redhat.com> (raw)
In-Reply-To: <20120809092035.GD12690@suse.de>
On 08/09/2012 05:20 AM, Mel Gorman wrote:
> The intention is that an allocation can fail but each subsequent attempt will
> try harder until there is success. Each allocation request does a portion
> of the necessary work to spread the cost between multiple requests.
At some point we need to stop doing that work, though.
Otherwise we could end up back at the problem where
way too much memory gets evicted, and we get swap
storms.
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next prev parent reply other threads:[~2012-08-09 20:31 UTC|newest]
Thread overview: 34+ 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 ` [PATCH 1/6] mm: compaction: Update comment in try_to_compact_pages Mel Gorman
2012-08-07 13:19 ` Rik van Riel
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 13:23 ` Rik van Riel
2012-08-08 1:48 ` Minchan Kim
2012-08-08 7:55 ` Mel Gorman
2012-08-08 8:27 ` Minchan Kim
2012-08-08 8:51 ` Mel Gorman
2012-08-08 23:51 ` Minchan Kim
2012-08-09 7:49 ` Mel Gorman
2012-08-09 8:27 ` Minchan Kim
2012-08-09 9:20 ` Mel Gorman
2012-08-09 20:29 ` Rik van Riel [this message]
2012-08-10 8:14 ` Mel Gorman
2012-08-09 23:27 ` Minchan Kim
2012-08-10 8:34 ` Mel Gorman
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 13:26 ` Rik van Riel
2012-08-08 2:07 ` Minchan Kim
2012-08-08 9:07 ` 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 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 ` [PATCH 6/6] mm: have order > 0 compaction start near a pageblock with free pages Mel Gorman
2012-08-07 14:45 ` Rik van Riel
2012-08-07 14:52 ` Mel Gorman
2012-08-07 15:20 ` Jim Schutt
2012-08-07 15:45 ` Mel Gorman
2012-08-08 4:36 ` Minchan Kim
2012-08-08 10:18 ` Mel Gorman
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