linux/kernel/sched
Rik van Riel ca28aa53dd sched/numa: Fix task or group comparison
This patch separately considers task and group affinities when
searching for swap candidates during NUMA placement. If tasks
are part of the same group, or no group at all, the task weights
are considered.

Some hysteresis is added to prevent tasks within one group from
getting bounced between NUMA nodes due to tiny differences.

If tasks are part of different groups, the code compares group
weights, in order to favor grouping task groups together.

The patch also changes the group weight multiplier to be the
same as the task weight multiplier, since the two are no longer
added up like before.

Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-55-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-09 14:48:08 +02:00
..
auto_group.c
auto_group.h
clock.c
core.c sched/numa: Stay on the same node if CLONE_VM 2013-10-09 14:47:57 +02:00
cpuacct.c cgroup: pass around cgroup_subsys_state instead of cgroup in file methods 2013-08-08 20:11:24 -04:00
cpuacct.h
cpupri.c
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
debug.c sched/numa: Add debugging 2013-10-09 14:48:04 +02:00
fair.c sched/numa: Fix task or group comparison 2013-10-09 14:48:08 +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/numa: Introduce migrate_swap() 2013-10-09 12:40:46 +02:00
Makefile
proc.c
rt.c sched/numa: Introduce migrate_swap() 2013-10-09 12:40:46 +02:00
sched.h sched/numa: Call task_numa_free() from do_execve() 2013-10-09 14:48:00 +02:00
stats.c
stats.h sched: Micro-optimize by dropping unnecessary task_rq() calls 2013-09-25 13:51:06 +02:00
stop_task.c sched/numa: Introduce migrate_swap() 2013-10-09 12:40:46 +02:00