From: Ingo Molnar <mingo@elte.hu>
Date: Sun, 26 Oct 2008 22:21:40 +0000 (-0400)
Subject: sched: disable the hrtick for now
X-Git-Tag: v2.6.27.5~20
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=612f39d5e7baeb0518cfe50d53e37e14c0ca1475;p=pandora-kernel.git

sched: disable the hrtick for now

commit 0c4b83da58ec2e96ce9c44c211d6eac5f9dae478 upstream

sched: disable the hrtick for now

David Miller reported that hrtick update overhead has tripled the
wakeup overhead on Sparc64.

That is too much - disable the HRTICK feature for now by default,
until a faster implementation is found.

Reported-by: David Miller <davem@davemloft.net>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Chuck Ebbert <cebbert@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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