mm/compaction: more trace to understand when/why compaction start/finish

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It is not well analyzed that when/why compaction start/finish or not.
With these new tracepoints, we can know much more about start/finish
reason of compaction.  I can find following bug with these tracepoint.

http://www.spinics.net/lists/linux-mm/msg81582.html

Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Mel Gorman <mgorman@suse.de>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

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Joonsoo Kim 2015-02-11 15:27:06 -08:00 • committed by Linus Torvalds

parent e34d85f0e3

commit 837d026d56

3 changed files with 111 additions and 4 deletions

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3

include/linux/compaction.h

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74

include/trace/events/compaction.h

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38

mm/compaction.c

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