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(parent: ebfed66) | patch
mm: numa: trace tasks that fail migration due to rate limiting
authorMel Gorman <mgorman@suse.de>
Mon, 16 Dec 2013 23:45:15 +0000 (10:45 +1100)
committerStephen Rothwell <sfr@canb.auug.org.au>
Mon, 16 Dec 2013 23:45:15 +0000 (10:45 +1100)
commite1a6551c32ee604b1bc86c853dfaff63fce33dfa
treebe1237e4d3e6f475268a9d8e1cd38c29258cc270tree | snapshot
parentebfed667a0ffaf5ebe276fa6ebaec33039dce638commit | 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