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authorMel Gorman <mgorman@suse.de>2013-10-07 11:29:27 +0100
committerIngo Molnar <mingo@kernel.org>2013-10-09 14:47:58 +0200
commit83e1d2cd9eabec5164afea295ff06b941ae8e4a9 (patch)
treef1f23d5483b00be3ce851c941de72ea52d6f7a4b /fs/exec.c
parent5e1576ed0e54d419286a8096133029062b6ad456 (diff)
downloadlinux-83e1d2cd9eabec5164afea295ff06b941ae8e4a9.tar.gz
sched/numa: Use group fault statistics in numa placement
This patch uses the fraction of faults on a particular node for both task and group, to figure out the best node to place a task. If the task and group statistics disagree on what the preferred node should be then a full rescan will select the node with the best combined weight. Signed-off-by: Mel Gorman <mgorman@suse.de> Reviewed-by: Rik van Riel <riel@redhat.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1381141781-10992-50-git-send-email-mgorman@suse.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
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