Messages in this thread | | | Date | Mon, 08 Dec 2014 10:16:34 +0100 | From | Vlastimil Babka <> | Subject | Re: [PATCH 0/4] enhance compaction success rate |
| |
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(-) >
| |