netdev - Re: [PATCH] NET : force a cache line split in hh

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Message-Id: <20061208.000858.03110623.davem@davemloft.net>
Date:	Fri, 08 Dec 2006 00:08:58 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	dada1@...mosbay.com
Cc:	shemminger@...l.org, netdev@...r.kernel.org
Subject: Re: [PATCH] NET : force a cache line split in hh_cache in SMP

From: Eric Dumazet <dada1@...mosbay.com>
Date: Fri, 08 Dec 2006 09:06:32 +0100

> hh_lock was converted from rwlock to seqlock by Stephen.
> 
> To have a 100% benefit of this change, I suggest to place read mostly fields 
> of hh_cache in a separate cache line, because hh_refcnt may be changed quite 
> frequently on some busy machines.
> 
> Signed-off-by: Eric Dumazet <dada1@...mosbay.com>

Applied, thanks Eric.
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