diff options
| author | Wanpeng Li <[email protected]> | 2013-12-12 15:23:26 +0800 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2013-12-17 15:24:41 +0100 |
| commit | e777b63bbd589248eb151a3191ee92331a701385 (patch) | |
| tree | b31cc96b7a5be58eafe51b7666b05b6a4419abaf | |
| parent | 82897b4fd3920ffd2456731d4f2ae1406558ef4c (diff) | |
sched/numa: Fix period_slot recalculation
The original code is as intended and was meant to scale the difference
between the NUMA_PERIOD_THRESHOLD and local/remote ratio when adjusting
the scan period. The period_slot recalculation can be dropped.
Signed-off-by: Wanpeng Li <[email protected]>
Reviewed-by: Naoya Horiguchi <[email protected]>
Acked-by: Mel Gorman <[email protected]>
Acked-by: David Rientjes <[email protected]>
Signed-off-by: Peter Zijlstra <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Rik van Riel <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
| -rw-r--r-- | kernel/sched/fair.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 37892d73f1e7..4316af287f60 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -1342,7 +1342,6 @@ static void update_task_scan_period(struct task_struct *p, * scanning faster if shared accesses dominate as it may * simply bounce migrations uselessly */ - period_slot = DIV_ROUND_UP(diff, NUMA_PERIOD_SLOTS); ratio = DIV_ROUND_UP(private * NUMA_PERIOD_SLOTS, (private + shared)); diff = (diff * ratio) / NUMA_PERIOD_SLOTS; } |