From: Andi Kleen <andi@firstfloor.org>
To: Tong Li <tong.n.li@intel.com>
Cc: mingo@elte.hu, linux-kernel@vger.kernel.org
Subject: Re: [RFC] scheduler: improve SMP fairness in CFS
Date: 23 Jul 2007 22:00:02 +0200 [thread overview]
Message-ID: <p73ir8aubzx.fsf@bingen.suse.de> (raw)
In-Reply-To: <Pine.LNX.4.64.0707231123080.3239@tongli.jf.intel.com>
Tong Li <tong.n.li@intel.com> writes:
> +
> + read_lock_irqsave(&dwrr_highest_lock, flags);
That lock looks like it would bounce between CPUs like crazy.
Did you try any benchmarks on a larger system?
-Andi
next prev parent reply other threads:[~2007-07-23 19:05 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-23 18:38 [RFC] scheduler: improve SMP fairness in CFS Tong Li
2007-07-23 20:00 ` Andi Kleen [this message]
2007-07-23 21:10 ` Li, Tong N
2007-07-23 21:25 ` Chris Friesen
2007-07-24 9:43 ` Andi Kleen
2007-07-23 23:40 ` Chris Snook
2007-07-24 8:07 ` Chris Snook
2007-07-24 17:11 ` Li, Tong N
2007-07-24 17:07 ` Tong Li
2007-07-24 18:08 ` Chris Snook
2007-07-24 19:47 ` Chris Friesen
2007-07-24 20:39 ` Chris Snook
2007-07-24 20:58 ` Li, Tong N
2007-07-24 21:09 ` Chris Snook
2007-07-24 21:23 ` Chris Friesen
2007-07-24 21:45 ` Chris Snook
2007-07-24 23:33 ` Chris Friesen
2007-07-24 21:06 ` Bill Huey
2007-07-24 21:22 ` Chris Snook
2007-07-24 23:14 ` Bill Huey
2007-07-24 21:12 ` Chris Friesen
2007-07-25 11:01 ` Ingo Molnar
2007-07-25 12:03 ` Ingo Molnar
2007-07-25 17:23 ` Tong Li
2007-07-25 19:24 ` Ingo Molnar
2007-07-25 20:38 ` Chris Friesen
2007-07-25 20:55 ` Chris Snook
2007-07-25 21:15 ` Li, Tong N
2007-07-25 22:24 ` Chris Snook
2007-07-26 19:00 ` Tong Li
2007-07-26 21:31 ` Ingo Molnar
2007-07-26 22:00 ` Li, Tong N
2007-07-27 1:34 ` Tong Li
2007-07-27 17:16 ` Chris Snook
2007-07-27 19:03 ` Tong Li
2007-07-27 22:20 ` Bill Huey
2007-07-27 23:36 ` Chris Snook
2007-07-28 0:54 ` Bill Huey
2007-07-28 2:59 ` Chris Snook
2007-07-28 19:38 ` Tong Li
2007-07-29 2:40 ` Chris Snook
2007-07-28 19:23 ` Tong Li
2007-07-29 3:01 ` Chris Snook
2007-07-25 18:20 ` Li, Tong N
2007-07-25 19:18 ` Ingo Molnar
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