Re: [patch] CFS scheduler, -v6

From: Srivatsa Vaddagiri
Date: Sat Apr 28 2007 - 08:38:55 EST


On Wed, Apr 25, 2007 at 11:47:04PM +0200, Ingo Molnar wrote:
> The CFS patch against v2.6.21-rc7 or against v2.6.20.7 can be downloaded
> from the usual place:
>
> http://redhat.com/~mingo/cfs-scheduler/

+static inline struct rb_node * first_fair(struct rq *rq)
+{
+ if (rq->rb_leftmost)
+ return rq->rb_leftmost;
+ return rb_first(&rq->tasks_timeline);
+}

Won't it help if you update rq->rb_leftmost above from the value
returned by rb_first(), so that subsequent calls to first_fair will be
sped up?

--
Regards,
vatsa
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/