From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Monjalon Subject: Re: [PATCH 0/2] fix performance/cache resource issues with 128-byte cache line targets Date: Mon, 07 Dec 2015 15:35:58 +0100 Message-ID: <5319870.TBdLd4mWKW@xps13> References: <1449417564-29600-1-git-send-email-jerin.jacob@caviumnetworks.com> <1624480.dTEes5qyS3@xps13> <20151207143300.GA20063@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Cc: dev@dpdk.org To: Jerin Jacob Return-path: Received: from mail-wm0-f52.google.com (mail-wm0-f52.google.com [74.125.82.52]) by dpdk.org (Postfix) with ESMTP id ECBF195D4 for ; Mon, 7 Dec 2015 15:37:11 +0100 (CET) Received: by wmuu63 with SMTP id u63so143064169wmu.0 for ; Mon, 07 Dec 2015 06:37:11 -0800 (PST) In-Reply-To: <20151207143300.GA20063@localhost.localdomain> List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" 2015-12-07 20:03, Jerin Jacob: > On Mon, Dec 07, 2015 at 03:40:13AM -0800, Thomas Monjalon wrote: > > 2015-12-07 12:56, Jerin Jacob: > > > On Sun, Dec 06, 2015 at 05:30:50PM +0100, Thomas Monjalon wrote: > > > > 2015-12-06 21:29, Jerin Jacob: > > > > > This patchset fixes performance/cache resource issues with 128-byte cache line targets > > > > > found in mbuf and bitmap DPDK libraries > > > > > > > > > > Currently, we have two DPDK targets(ThunderX and ppc_64) which are based on > > > > > 128-bytes cache line size target. > > > > > > > > When introducing IBM Power8, we failed to clean the cache line size definition. > > > > I promised to not forget this issue in this thread with Neil: > > > > http://dpdk.org/ml/archives/dev/2014-December/009439.html > > > > > > > > It is defined in > > > > config/defconfig_* > > > > mk/machine/*/rte.vars.mk > > > > mk/arch/*/rte.vars.mk > > > > rte_memory.h > > > > rte_kni_common.h > > > > > > > > It should be defined only in the config files. > > > > When we will introduce a configure script, we should be able to detect it. > > > > > > > > Please Jerin, as ThunderX maintainer, may you help to fix this old mess? > > > > > > Yes Thomas, I will takeup this issue when we will have configure script. > > > > I thought we could start setting the value in only one place. > > The detection in configure script would be another step. > > OK Thomas, I have sent the cleanup patch. Please review it. You are too fast :) I will review it but it will be deferred to 2.3.