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(parent: 1c5e9c2) | patch
mm: numa: trace tasks that fail migration due to rate limiting
authorMel Gorman <mgorman@suse.de>
Tue, 21 Jan 2014 23:51:01 +0000 (15:51 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 22 Jan 2014 00:19:48 +0000 (16:19 -0800)
commitaf1839d722c986ffeaae1e70a6ef1c75ff38dcd5
tree9de959141096c28bbb9ff65ffe8e087f88df231dtree | snapshot
parent1c5e9c27cbd966c7f0038698d5dcd5ada3574f47commit | diff
mm: numa: trace tasks that fail migration due to rate limiting

A low local/remote numa hinting fault ratio is potentially explained by
failed migrations.  This patch adds a tracepoint that fires when
migration fails due to migration rate limitation.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Alex Thorlton <athorlton@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
include/trace/events/migrate.h diff | blob | history
mm/migrate.c diff | blob | history
Domain: System / Kernel;