diff options
| author | Mel Gorman <mgorman@suse.de> | 2013-10-07 14:29:27 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-10-09 16:47:58 +0400 |
| commit | 83e1d2cd9eabec5164afea295ff06b941ae8e4a9 (patch) | |
| tree | f1f23d5483b00be3ce851c941de72ea52d6f7a4b /include/linux/sched.h | |
| parent | 5e1576ed0e54d419286a8096133029062b6ad456 (diff) | |
| download | linux-83e1d2cd9eabec5164afea295ff06b941ae8e4a9.tar.xz | |
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>
Diffstat (limited to 'include/linux/sched.h')
| -rw-r--r-- | include/linux/sched.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index 8563e3dd5c0f..724482200b83 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1356,6 +1356,7 @@ struct task_struct { * The values remain static for the duration of a PTE scan */ unsigned long *numa_faults; + unsigned long total_numa_faults; /* * numa_faults_buffer records faults per node during the current |