Messages in this thread Patch in this message |  | | From | Wanpeng Li <> | Subject | [PATCH v7 4/4] sched/numa: fix period_slot recalculation | Date | Thu, 12 Dec 2013 08:12:23 +0800 |
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Changelog: v3 -> v4: * remove 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.
Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Acked-by: Mel Gorman <mgorman@suse.de> Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com> --- kernel/sched/fair.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index d93c86f..c962167 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -1356,7 +1356,6 @@ 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; } -- 1.8.3.2
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