Joonsoo Kim d31980846f sched: Move up affinity check to mitigate useless redoing overhead ... Currently, LBF_ALL_PINNED is cleared after affinity check is passed. So, if task migration is skipped by small load value or small imbalance value in move_tasks(), we don't clear LBF_ALL_PINNED. At last, we trigger 'redo' in load_balance(). Imbalance value is often so small that any tasks cannot be moved to other cpus and, of course, this situation may be continued after we change the target cpu. So this patch move up affinity check code and clear LBF_ALL_PINNED before evaluating load value in order to mitigate useless redoing overhead. In addition, re-order some comments correctly. Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Tested-by: Jason Low <jason.low2@hp.com> Cc: Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com> Cc: Davidlohr Bueso <davidlohr.bueso@hp.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1366705662-3587-5-git-send-email-iamjoonsoo.kim@lge.com Signed-off-by: Ingo Molnar <mingo@kernel.org>		2013-04-24 08:52:44 +02:00
..
auto_group.c
auto_group.h
clock.c
core.c	sched/cpuacct: Initialize root cpuacct earlier	2013-04-10 13:54:20 +02:00
cpuacct.c	sched/cpuacct/UML: Fix header file dependency bug on the UML build	2013-04-10 15:12:41 +02:00
cpuacct.h	sched/cpuacct: Initialize root cpuacct earlier	2013-04-10 13:54:20 +02:00
cpupri.c
cpupri.h
cputime.c	sched/cpuacct: Add cpuacct_acount_field()	2013-04-10 13:54:17 +02:00
debug.c
fair.c	sched: Move up affinity check to mitigate useless redoing overhead	2013-04-24 08:52:44 +02:00
features.h
idle_task.c	sched: Fix wrong rq's runnable_avg update with rt tasks	2013-04-21 11:22:52 +02:00
Makefile	sched: Split cpuacct code out of core.c	2013-04-10 13:54:15 +02:00
rt.c
sched.h	sched: Fix wrong rq's runnable_avg update with rt tasks	2013-04-21 11:22:52 +02:00
stats.c
stats.h
stop_task.c