On 12/08/2014 08:16 AM, Joonsoo Kim wrote:
This patchset aims at increase of compaction success rate. Changes are
related to compaction finish condition and freepage isolation condition.
From these changes, I did stress highalloc test in mmtests with nonmovable
order 7 allocation configuration, and success rate (%) at phase 1 are,
Base Patch-1 Patch-3 Patch-4
55.00 57.00 62.67 64.00
And, compaction success rate (%) on same test are,
Base Patch-1 Patch-3 Patch-4
18.47 28.94 35.13 41.50
Did you test Patch-2 separately? Any difference to Patch 1?
This patchset is based on my tracepoint update on compaction.
https://lkml.org/lkml/2014/12/3/71
Joonsoo Kim (4):
mm/compaction: fix wrong order check in compact_finished()
mm/page_alloc: expands broken freepage to proper buddy list when
steal
mm/compaction: enhance compaction finish condition
mm/compaction: stop the isolation when we isolate enough freepage
include/linux/mmzone.h | 3 ++
include/trace/events/kmem.h | 7 +++--
mm/compaction.c | 48 ++++++++++++++++++++++------
mm/internal.h | 1 +
mm/page_alloc.c | 73 +++++++++++++++++++++++++------------------
5 files changed, 89 insertions(+), 43 deletions(-)
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