From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from proxy.6wind.com (host.76.145.23.62.rev.coltfrance.com [62.23.145.76]) by dpdk.org (Postfix) with ESMTP id 98A36C57C for ; Thu, 16 Jun 2016 10:58:16 +0200 (CEST) Received: from [10.16.0.195] (unknown [10.16.0.195]) by proxy.6wind.com (Postfix) with ESMTP id 4F88C245EE; Thu, 16 Jun 2016 10:58:10 +0200 (CEST) To: "Hunt, David" , Jan Viktorin References: <1465919341-3209-1-git-send-email-david.hunt@intel.com> <1465976824-83823-1-git-send-email-david.hunt@intel.com> <20160615121358.5ef9f142@pcviktorin.fit.vutbr.cz> <57614043.9090603@intel.com> <57614402.6020708@6wind.com> <576183AD.8070200@intel.com> <576184F7.3040206@6wind.com> <576259A2.4090200@intel.com> <57626787.6090709@6wind.com> <57626992.9020009@intel.com> Cc: dev@dpdk.org, jerin.jacob@caviumnetworks.com, shreyansh.jain@nxp.com From: Olivier MATZ Message-ID: <57626A22.2020604@6wind.com> Date: Thu, 16 Jun 2016 10:58:10 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Icedove/38.6.0 MIME-Version: 1.0 In-Reply-To: <57626992.9020009@intel.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [dpdk-dev] [PATCH v12 0/3] mempool: add external mempool manager X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 16 Jun 2016 08:58:16 -0000 >> >> So I don't think we should have more cache misses whether it's >> placed at the beginning or at the end. Maybe I'm missing something... >> >> I still believe it's better to group the 2 fields as they are >> tightly linked together. It could be at the end if you see better >> performance. >> > > OK, I'll leave at the end because of the performance hit. Sorry, my message was not clear. I mean, having both at the end. Do you see a performance impact in that case? Regards Olivier