Rik van Riel 096aa33863 sched/numa: Decay ->wakee_flips instead of zeroing ...

Affine wakeups have the potential to interfere with NUMA placement.
If a task wakes up too many other tasks, affine wakeups will get
disabled.

However, regardless of how many other tasks it wakes up, it gets
re-enabled once a second, potentially interfering with NUMA
placement of other tasks.

By decaying wakee_wakes in half instead of zeroing it, we can avoid
that problem for some workloads.

Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: chegu_vinod@hp.com
Cc: umgwanakikbuti@gmail.com
Link: http://lkml.kernel.org/r/20140516001332.67f91af2@annuminas.surriel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

2014-05-22 11:16:41 +02:00

..

auto_group.c

sched: Replace hardcoding of -20 and 19 with MIN_NICE and MAX_NICE

2014-02-22 18:15:54 +01:00

auto_group.h

…

clock.c

kernel: use macros from compiler.h instead of __attribute__((...))

2014-04-07 16:36:11 -07:00

completion.c

sched: Move completion code from core.c to completion.c

2013-11-06 07:49:19 +01:00

core.c

sched: Consolidate open coded implementations of nice level frobbing into nice_to_rlimit() and rlimit_to_nice()

2014-05-22 11:16:36 +02:00

cpuacct.c

cgroup: clean up cgroup_subsys names and initialization

2014-02-08 10:36:58 -05:00

cpuacct.h

…

cpudeadline.c

sched/deadline: Replace NR_CPUS arrays

2014-05-22 10:21:28 +02:00

cpudeadline.h

sched/deadline: Replace NR_CPUS arrays

2014-05-22 10:21:28 +02:00

cpupri.c

sched/cpupri: Replace NR_CPUS arrays

2014-05-22 10:21:29 +02:00

cpupri.h

sched/cpupri: Replace NR_CPUS arrays

2014-05-22 10:21:29 +02:00

cputime.c

sched: Sanitize irq accounting madness

2014-05-07 11:51:30 +02:00

deadline.c

sched/rt: Fix 'struct sched_dl_entity' and dl_task_time() comments, to match the current upstream code

2014-05-22 11:16:37 +02:00

debug.c

Merge branch 'for-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

2014-04-03 13:05:42 -07:00

fair.c

sched/numa: Decay ->wakee_flips instead of zeroing

2014-05-22 11:16:41 +02:00

features.h

sched/numa: Resist moving tasks towards nodes with fewer hinting faults

2013-10-09 12:40:27 +02:00

idle_task.c

sched/fair: Push down check for high priority class task into idle_balance()

2014-03-11 12:05:37 +01:00

idle.c

Merge branch 'pm-cpuidle' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm into sched/core

2014-05-22 10:37:06 +02:00

Makefile

sched/idle: Move cpu/idle.c to sched/idle.c

2014-02-11 09:58:30 +01:00

proc.c

…

rt.c

sched, nohz: Change rq->nr_running to always use wrappers

2014-05-22 11:16:33 +02:00

sched.h

sched, nohz: Change rq->nr_running to always use wrappers

2014-05-22 11:16:33 +02:00

stats.c

kernel: audit/fix non-modular users of module_init in core code

2014-04-03 16:21:07 -07:00

stats.h

sched: Micro-optimize by dropping unnecessary task_rq() calls

2013-09-25 13:51:06 +02:00

stop_task.c

sched, nohz: Change rq->nr_running to always use wrappers

2014-05-22 11:16:33 +02:00

wait.c

sched: Move wait code from core.c to wait.c

2013-11-06 07:49:18 +01:00