sched: Introduce temporary FAIR_GROUP_SCHED dependency for load-tracking
authorPaul Turner <pjt@google.com>
Thu, 4 Oct 2012 11:18:32 +0000 (13:18 +0200)
committerIngo Molnar <mingo@kernel.org>
Wed, 24 Oct 2012 08:27:31 +0000 (10:27 +0200)
commitf4e26b120b9de84cb627bc7361ba43cfdc51341f
tree19786e34c5de3c9b7c9c871a27b0f8d85cc8690d
parent5b51f2f80b3b906ce59bd4dce6eca3c7f34cb1b9
sched: Introduce temporary FAIR_GROUP_SCHED dependency for load-tracking

While per-entity load-tracking is generally useful, beyond computing shares
distribution, e.g. runnable based load-balance (in progress), governors,
power-management, etc.

These facilities are not yet consumers of this data.  This may be trivially
reverted when the information is required; but avoid paying the overhead for
calculations we will not use until then.

Signed-off-by: Paul Turner <pjt@google.com>
Reviewed-by: Ben Segall <bsegall@google.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20120823141507.422162369@google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
include/linux/sched.h
kernel/sched/core.c
kernel/sched/fair.c
kernel/sched/sched.h