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Subject: Re: [PATCH] sched: reorder root_domain to remove 64 bit alignment
 padding
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>
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Date: Fri, 15 Jul 2011 12:44:20 +0200
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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!