From: Nick Piggin <nickpiggin@yahoo.com.au>
To: Ingo Molnar <mingo@elte.hu>
Cc: Andrew Morton <akpm@osdl.org>,
"Siddha, Suresh B" <suresh.b.siddha@intel.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
Jack Steiner <steiner@sgi.com>
Subject: Re: [patch 2/2] sched: reduce locking in periodic balancing
Date: Wed, 03 Aug 2005 20:25:44 +1000 [thread overview]
Message-ID: <42F09BA8.9030403@yahoo.com.au> (raw)
In-Reply-To: <20050803075916.GB6013@elte.hu>
Ingo Molnar wrote:
[...]
Thanks for the corrections.
>
> btw., holding the runqueue lock during the initial scanning portion of
> load-balancing is one of the top PREEMPT_RT critical paths on SMP. (It's
> not bad, but it's one of the factors that makes SMP latencies higher.)
>
Good, I'm glad they will be of some immediate help.
> Acked-by: Ingo Molnar <mingo@elte.hu>
>
Thanks.
--
SUSE Labs, Novell Inc.
Send instant messages to your online friends http://au.messenger.yahoo.com
next prev parent reply other threads:[~2005-08-03 10:26 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-08-02 12:23 [patch 0/2] sched: reduce locking Nick Piggin
2005-08-02 12:24 ` [patch 1/2] sched: reduce locking in newidle balancing Nick Piggin
2005-08-02 12:25 ` [patch 2/2] sched: reduce locking in periodic balancing Nick Piggin
2005-08-03 7:59 ` Ingo Molnar
2005-08-03 10:25 ` Nick Piggin [this message]
2005-08-03 7:51 ` [patch 1/2] sched: reduce locking in newidle balancing Ingo Molnar
2005-08-02 12:40 ` [patch 0/2] sched: reduce locking Ingo Molnar
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