netdev - Re: [PATCH net-next] net: sctp: reorder sctp

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Message-ID: <20130826152941.GA30662@hmsreliant.think-freely.org>
Date:	Mon, 26 Aug 2013 11:29:41 -0400
From:	Neil Horman <nhorman@...driver.com>
To:	Daniel Borkmann <dborkman@...hat.com>
Cc:	davem@...emloft.net, netdev@...r.kernel.org,
	linux-sctp@...r.kernel.org
Subject: Re: [PATCH net-next] net: sctp: reorder sctp_globals to reduce
 cacheline usage

On Mon, Aug 26, 2013 at 04:34:00PM +0200, Daniel Borkmann wrote:
> Reduce cacheline usage from 2 to 1 cacheline for sctp_globals structure. By
> reordering elements, we can close gaps and simply achieve the following:
> 
> Current situation:
>   /* size: 80, cachelines: 2, members: 10 */
>   /* sum members: 57, holes: 4, sum holes: 16 */
>   /* padding: 7 */
>   /* last cacheline: 16 bytes */
> 
> Afterwards:
>   /* size: 64, cachelines: 1, members: 10 */
>   /* padding: 7 */
> 
> Signed-off-by: Daniel Borkmann <dborkman@...hat.com>
Acked-by: Neil Horman <nhorman@...driver.com>

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