From mboxrd@z Thu Jan 1 00:00:00 1970 From: Olivier MATZ Subject: Re: [PATCH 10/13] mbuf: split mbuf across two cache lines. Date: Mon, 08 Sep 2014 14:10:46 +0200 Message-ID: <540D9CC6.7020202@6wind.com> References: <1409759378-10113-1-git-send-email-bruce.richardson@intel.com> <1409759378-10113-11-git-send-email-bruce.richardson@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit To: Bruce Richardson , dev-VfR2kkLFssw@public.gmane.org Return-path: In-Reply-To: <1409759378-10113-11-git-send-email-bruce.richardson-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces-VfR2kkLFssw@public.gmane.org Sender: "dev" Hi Bruce, On 09/03/2014 05:49 PM, Bruce Richardson wrote: > This change splits the mbuf in two to move the pool and next pointers to > the second cache line. This frees up 16 bytes in first cache line. > > Signed-off-by: Bruce Richardson I think you should provide more explanation in the commit log about why this change is needed. I remeber you already provided the arguments on the mailing list, but it could be interesting to have them in the log. Regards, Olivier