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| author | Mel Gorman <mgorman@suse.de> | 2013-10-07 14:29:18 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-10-09 16:47:41 +0400 |
| commit | 2c8a50aa873a7e1d6cc0913362051ff9912dc6ca (patch) | |
| tree | ca32297c046a3789b44e1255b94ef8d0b760d1f9 /mm/page_alloc.c | |
| parent | fb13c7ee0ed387bd6bec4b4024a4d49b1bd504f1 (diff) | |
| download | linux-2c8a50aa873a7e1d6cc0913362051ff9912dc6ca.tar.xz | |
sched/numa: Favor placing a task on the preferred node
A tasks preferred node is selected based on the number of faults
recorded for a node but the actual task_numa_migate() conducts a global
search regardless of the preferred nid. This patch checks if the
preferred nid has capacity and if so, searches for a CPU within that
node. This avoids a global search when the preferred node is not
overloaded.
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/1381141781-10992-41-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'mm/page_alloc.c')
0 files changed, 0 insertions, 0 deletions