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(parent: a10d715) | patch
mm: numa: trace tasks that fail migration due to rate limiting
authorMel Gorman <mgorman@suse.de>
Fri, 3 Jan 2014 03:09:58 +0000 (14:09 +1100)
committerStephen Rothwell <sfr@canb.auug.org.au>
Fri, 3 Jan 2014 03:09:58 +0000 (14:09 +1100)
commitbbccd643ee0bf0e4a1d8008da9c4f78eca96628d
tree91bac1bd31947a6c106077e135753ea00050312btree | snapshot
parenta10d71566ed6b0c12ec20a6a693e2ecff3afa809commit | 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>
include/trace/events/migrate.h diff | blob | history
mm/migrate.c diff | blob | history
Linux kernel for KaRo TX COM modules