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linux/kernel/sched
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Peter Zijlstra 35af99e646 sched/clock, x86: Use a static_key for sched_clock_stable 
In order to avoid the runtime condition and variable load turn
sched_clock_stable into a static_key.

Also provide a shorter implementation of local_clock() and
cpu_clock(int) when sched_clock_stable==1.

                        MAINLINE   PRE       POST

    sched_clock_stable: 1          1         1
    (cold) sched_clock: 329841     221876    215295
    (cold) local_clock: 301773     234692    220773
    (warm) sched_clock: 38375      25602     25659
    (warm) local_clock: 100371     33265     27242
    (warm) rdtsc:       27340      24214     24208
    sched_clock_stable: 0          0         0
    (cold) sched_clock: 382634     235941    237019
    (cold) local_clock: 396890     297017    294819
    (warm) sched_clock: 38194      25233     25609
    (warm) local_clock: 143452     71234     71232
    (warm) rdtsc:       27345      24245     24243

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/n/tip-eummbdechzz37mwmpags1gjr@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-01-13 15:13:13 +01:00
..
auto_group.c
sched/autogroup: Fix race with task_groups list
2013-05-28 09:40:22 +02:00
auto_group.h
Revert "sched/autogroup: Fix crash on reboot when autogroup is disabled"
2012-12-11 10:23:45 +01:00
clock.c
sched/clock, x86: Use a static_key for sched_clock_stable
2014-01-13 15:13:13 +01:00
completion.c
sched: Move completion code from core.c to completion.c
2013-11-06 07:49:19 +01:00
core.c
sched: Reduce trigger_load_balance() parameters
2014-01-13 13:47:26 +01:00
cpuacct.c
cgroup: pass around cgroup_subsys_state instead of cgroup in file methods
2013-08-08 20:11:24 -04:00
cpuacct.h
sched/cpuacct: Initialize root cpuacct earlier
2013-04-10 13:54:20 +02:00
cpudeadline.c
sched/deadline: speed up SCHED_DEADLINE pushes with a push-heap
2014-01-13 13:46:46 +01:00
cpudeadline.h
sched/deadline: speed up SCHED_DEADLINE pushes with a push-heap
2014-01-13 13:46:46 +01:00
cpupri.c
sched: Fix some kernel-doc warnings
2013-07-18 09:58:21 +02:00
cpupri.h
…
cputime.c
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2013-09-05 12:36:46 -07:00
deadline.c
sched/deadline: Remove the sysctl_sched_dl knobs
2014-01-13 13:47:23 +01:00
debug.c
sched/clock, x86: Use a static_key for sched_clock_stable
2014-01-13 15:13:13 +01:00
fair.c
sched: Factor out the on_null_domain() checks in trigger_load_balance()
2014-01-13 13:47:35 +01:00
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/numa: Introduce migrate_swap()
2013-10-09 12:40:46 +02:00
Makefile
sched/deadline: speed up SCHED_DEADLINE pushes with a push-heap
2014-01-13 13:46:46 +01:00
proc.c
sched: Change get_rq_runnable_load() to static and inline
2013-06-27 10:07:44 +02:00
rt.c
sched/deadline: Add SCHED_DEADLINE SMP-related data structures & logic
2014-01-13 13:41:07 +01:00
sched.h
sched: Reduce trigger_load_balance() parameters
2014-01-13 13:47:26 +01:00
stats.c
fix a leak in /proc/schedstats
2013-04-29 15:41:45 -04:00
stats.h
sched: Micro-optimize by dropping unnecessary task_rq() calls
2013-09-25 13:51:06 +02:00
stop_task.c
sched/deadline: Add SCHED_DEADLINE structures & implementation
2014-01-13 13:41:06 +01:00
wait.c
sched: Move wait code from core.c to wait.c
2013-11-06 07:49:18 +01:00