diff options
| author | Wanpeng Li <liwanp@linux.vnet.ibm.com> | 2013-12-12 15:23:23 +0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-12-17 15:24:38 +0100 |
| commit | 1bd53a7efdc988163ec4c25f656df38dbe500632 (patch) | |
| tree | 6bc1d2fb0b550ca3f0d86f72c2b65fbe991baf83 | |
| parent | ffe732c2430c55074bebb172d33d909c662cd0e3 (diff) | |
sched/numa: Drop sysctl_numa_balancing_settle_count sysctl
commit 887c290e (sched/numa: Decide whether to favour task or group weights
based on swap candidate relationships) drop the check against
sysctl_numa_balancing_settle_count, this patch remove the sysctl.
Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Link: http://lkml.kernel.org/r/1386833006-6600-1-git-send-email-liwanp@linux.vnet.ibm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | Documentation/sysctl/kernel.txt | 5 | ||||
| -rw-r--r-- | include/linux/sched/sysctl.h | 1 | ||||
| -rw-r--r-- | kernel/sched/fair.c | 9 | ||||
| -rw-r--r-- | kernel/sysctl.c | 7 |
4 files changed, 0 insertions, 22 deletions
diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt index 26b7ee491df..6d486404200 100644 --- a/Documentation/sysctl/kernel.txt +++ b/Documentation/sysctl/kernel.txt @@ -428,11 +428,6 @@ rate for each task. numa_balancing_scan_size_mb is how many megabytes worth of pages are scanned for a given scan. -numa_balancing_settle_count is how many scan periods must complete before -the schedule balancer stops pushing the task towards a preferred node. This -gives the scheduler a chance to place the task on an alternative node if the -preferred node is overloaded. - numa_balancing_migrate_deferred is how many page migrations get skipped unconditionally, after a page migration is skipped because a page is shared with other tasks. This reduces page migration overhead, and determines diff --git a/include/linux/sched/sysctl.h b/include/linux/sched/sysctl.h index 41467f8ff8e..31e0193cb0c 100644 --- a/include/linux/sched/sysctl.h +++ b/include/linux/sched/sysctl.h @@ -48,7 +48,6 @@ extern unsigned int sysctl_numa_balancing_scan_delay; extern unsigned int sysctl_numa_balancing_scan_period_min; extern unsigned int sysctl_numa_balancing_scan_period_max; extern unsigned int sysctl_numa_balancing_scan_size; -extern unsigned int sysctl_numa_balancing_settle_count; #ifdef CONFIG_SCHED_DEBUG extern unsigned int sysctl_sched_migration_cost; diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index a9185f7c944..fcb6c17f7d7 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -872,15 +872,6 @@ static unsigned int task_scan_max(struct task_struct *p) return max(smin, smax); } -/* - * Once a preferred node is selected the scheduler balancer will prefer moving - * a task to that node for sysctl_numa_balancing_settle_count number of PTE - * scans. This will give the process the chance to accumulate more faults on - * the preferred node but still allow the scheduler to move the task again if - * the nodes CPUs are overloaded. - */ -unsigned int sysctl_numa_balancing_settle_count __read_mostly = 4; - static void account_numa_enqueue(struct rq *rq, struct task_struct *p) { rq->nr_numa_running += (p->numa_preferred_nid != -1); diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 34a604726d0..c8da99f905c 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -385,13 +385,6 @@ static struct ctl_table kern_table[] = { .proc_handler = proc_dointvec, }, { - .procname = "numa_balancing_settle_count", - .data = &sysctl_numa_balancing_settle_count, - .maxlen = sizeof(unsigned int), - .mode = 0644, - .proc_handler = proc_dointvec, - }, - { .procname = "numa_balancing_migrate_deferred", .data = &sysctl_numa_balancing_migrate_deferred, .maxlen = sizeof(unsigned int), |