From: Andrea Arcangeli <aarcange@redhat.com>
To: Hush Bensen <hush.bensen@gmail.com>
Cc: linux-mm@kvack.org, Mel Gorman <mgorman@suse.de>,
Rik van Riel <riel@redhat.com>, Hugh Dickins <hughd@google.com>,
Richard Davies <richard@arachsys.com>,
Shaohua Li <shli@kernel.org>, Rafael Aquini <aquini@redhat.com>
Subject: Re: [PATCH 10/10] mm: zone_reclaim: compaction: add compaction to zone_reclaim_mode
Date: Wed, 17 Jul 2013 19:20:47 +0200 [thread overview]
Message-ID: <20130717172047.GB6552@redhat.com> (raw)
In-Reply-To: <51E653CB.6090808@gmail.com>
On Wed, Jul 17, 2013 at 04:20:27AM -0400, Hush Bensen wrote:
> These works should be done in slow path, does it mean fast path is not
> faster any more?
The changes are in zone_reclaim(), I don't think zone_reclaim shall be
considered a fast path, that is intended to reclaim memory. The fast
path is when the free pages are above the low wmark and we don't need
to call zone_reclaim.
Thanks,
Andrea
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prev parent reply other threads:[~2013-07-17 17:20 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-16 13:41 [PATCH 00/10] adding compaction to zone_reclaim_mode > 0 #2 Andrea Arcangeli
2013-07-16 13:41 ` [PATCH 01/10] mm: zone_reclaim: remove ZONE_RECLAIM_LOCKED Andrea Arcangeli
2013-07-16 23:45 ` Wanpeng Li
2013-07-16 23:45 ` Wanpeng Li
2013-07-16 13:41 ` [PATCH 02/10] mm: zone_reclaim: compaction: scan all memory with /proc/sys/vm/compact_memory Andrea Arcangeli
2013-07-16 23:29 ` Wanpeng Li
2013-07-16 23:29 ` Wanpeng Li
2013-07-16 13:41 ` [PATCH 03/10] mm: zone_reclaim: compaction: don't depend on kswapd to invoke reset_isolation_suitable Andrea Arcangeli
2013-07-16 23:32 ` Wanpeng Li
2013-07-16 23:32 ` Wanpeng Li
2013-07-16 13:41 ` [PATCH 04/10] mm: zone_reclaim: compaction: reset before initializing the scan cursors Andrea Arcangeli
2013-07-16 23:31 ` Wanpeng Li
2013-07-16 23:31 ` Wanpeng Li
2013-07-16 13:41 ` [PATCH 05/10] mm: compaction: don't require high order pages below min wmark Andrea Arcangeli
2013-07-17 8:13 ` Hush Bensen
2013-07-17 17:15 ` Andrea Arcangeli
2013-07-16 13:41 ` [PATCH 06/10] mm: zone_reclaim: compaction: increase the high order pages in the watermarks Andrea Arcangeli
2013-07-16 13:41 ` [PATCH 07/10] mm: zone_reclaim: compaction: export compact_zone_order() Andrea Arcangeli
2013-07-16 13:41 ` [PATCH 08/10] mm: zone_reclaim: only run zone_reclaim in the fast path Andrea Arcangeli
2013-07-16 13:41 ` [PATCH 09/10] mm: zone_reclaim: after a successful zone_reclaim check the min watermark Andrea Arcangeli
2013-07-16 13:41 ` [PATCH 10/10] mm: zone_reclaim: compaction: add compaction to zone_reclaim_mode Andrea Arcangeli
2013-07-17 8:20 ` Hush Bensen
2013-07-17 17:20 ` Andrea Arcangeli [this message]
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