Re: [PATCH 2/2] mm: compaction: add /proc/vmstat entry for rescued MIGRATE_UNMOVABLE pageblocks

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On Thu, 14 Jun 2012 12:21:22 -0400
KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxx> wrote:

> (6/14/12 12:02 PM), Bartlomiej Zolnierkiewicz wrote:
> > From: Bartlomiej Zolnierkiewicz<b.zolnierkie@xxxxxxxxxxx>
> > Subject: [PATCH] mm: compaction: add /proc/vmstat entry for rescued MIGRATE_UNMOVABLE pageblocks
> >
> > compact_rescued_unmovable_blocks shows the number of MIGRATE_UNMOVABLE
> > pageblocks converted back to MIGRATE_MOVABLE type by the memory compaction
> > code.  Non-zero values indicate that large kernel-originated allocations
> > of MIGRATE_UNMOVABLE type happen in the system and need special handling
> > from the memory compaction code.
> >
> > This new vmstat entry is optional but useful for development and understanding
> > the system.
> 
> This description don't describe why admin need this stat and how to use it.
> 

Was there a response to this?

patch [1/2] doesn't apply.  Refresh and resend the series, please?

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