Messages in this thread | | | Date | Thu, 28 Jun 2012 09:58:42 +0900 | From | Minchan Kim <> | Subject | Re: excessive CPU utilization by isolate_freepages? |
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On 06/28/2012 09:52 AM, David Rientjes wrote:
> On Wed, 27 Jun 2012, Rik van Riel wrote: > >>> > > I doubt compaction try to migrate continuously although we have no free >>> > > memory. >>> > > Could you apply this patch and retest? >>> > > >>> > > https://lkml.org/lkml/2012/6/21/30 >> > > Not sure if Jim is using memcg; if not, then this won't be helpful. >
It doesn't related to memcg. if compaction_alloc can't find suitable migration target, it returns NULL. Then, migrate_pages should be exit.
-- Kind regards, Minchan Kim
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