]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
sched: fix wakeup granularity and buddy granularity
authorPeter Zijlstra <a.p.zijlstra@chello.nl>
Fri, 27 Jun 2008 11:41:16 +0000 (13:41 +0200)
committerIngo Molnar <mingo@elte.hu>
Fri, 27 Jun 2008 12:31:31 +0000 (14:31 +0200)
commit103638d95ba5b0c53c8d9c0cb581156ccc8513ee
tree56d78e3e00780e044ef7688f27c93ece813035c1
parent76a2a6ee8a0660a29127f05989ac59ae1ce865fa
sched: fix wakeup granularity and buddy granularity

Uncouple buddy selection from wakeup granularity.

The initial idea was that buddies could run ahead as far as a normal task
can - do this by measuring a pair 'slice' just as we do for a normal task.

This means we can drop the wakeup_granularity back to 5ms.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>
Cc: Mike Galbraith <efault@gmx.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
kernel/sched.c
kernel/sched_fair.c