From: Ingo Molnar <mingo@elte.hu>
To: Nick Piggin <nickpiggin@yahoo.com.au>
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 1/2] sched: reduce locking in newidle balancing
Date: Wed, 3 Aug 2005 09:51:29 +0200 [thread overview]
Message-ID: <20050803075129.GA6013@elte.hu> (raw)
In-Reply-To: <42EF65FF.2000102@yahoo.com.au>
* Nick Piggin <nickpiggin@yahoo.com.au> wrote:
> Similarly to the earlier change in load_balance, only lock the
> runqueue in load_balance_newidle if the busiest queue found has a
> nr_running > 1. This will reduce frequency of expensive remote
> runqueue lock aquisitions in the schedule() path on some workloads.
>
> Signed-off-by: Nick Piggin <npiggin@suse.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Ingo
next prev parent reply other threads:[~2005-08-03 7:50 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
2005-08-03 7:51 ` Ingo Molnar [this message]
2005-08-02 12:40 ` [patch 0/2] sched: reduce locking Ingo Molnar
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