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From: Peter Zijlstra <peterz@infradead.org>
To: Richard Kennedy <richard@rsk.demon.co.uk>
Cc: Ingo Molnar <mingo@elte.hu>, lkml <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] sched: reorder root_domain to remove 64 bit alignment padding
Date: Fri, 15 Jul 2011 12:44:20 +0200	[thread overview]
Message-ID: <1310726660.2586.313.camel@twins> (raw)
In-Reply-To: <1310726492.1977.5.camel@castor.rsk>

On Fri, 2011-07-15 at 11:41 +0100, Richard Kennedy wrote:
> Reorder root_domain to remove 8 bytes of alignment padding on 64 bit
> builds, this shrinks the size from 1736 to 1728 bytes, therefore using
> one fewer cachelines.

depends a bit on how insane struct cpupri is, but yeah, good compaction.
Thanks!

  reply	other threads:[~2011-07-15 10:44 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-07-15 10:41 [PATCH] sched: reorder root_domain to remove 64 bit alignment padding Richard Kennedy
2011-07-15 10:44 ` Peter Zijlstra [this message]
2011-07-15 11:23   ` Richard Kennedy
2011-07-15 18:59     ` Henrique de Moraes Holschuh
2011-07-21 18:30 ` [tip:sched/core] sched: Reorder " tip-bot for Richard Kennedy

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