From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758669Ab2I1RxW (ORCPT ); Fri, 28 Sep 2012 13:53:22 -0400 Received: from e38.co.us.ibm.com ([32.97.110.159]:47564 "EHLO e38.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751420Ab2I1RxU (ORCPT ); Fri, 28 Sep 2012 13:53:20 -0400 Date: Fri, 28 Sep 2012 10:53:01 -0700 From: "Paul E. McKenney" To: Michael Wang Cc: linux-kernel@vger.kernel.org, dipankar@in.ibm.com Subject: Re: [PATCH 0/7] rcu: optimize RCU trace on the huge platform Message-ID: <20120928175301.GC2498@linux.vnet.ibm.com> Reply-To: paulmck@linux.vnet.ibm.com References: <1348102268-3544-1-git-send-email-wangyun@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1348102268-3544-1-git-send-email-wangyun@linux.vnet.ibm.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Content-Scanned: Fidelis XPS MAILER x-cbid: 12092817-5518-0000-0000-000007FFE74E Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Sep 20, 2012 at 08:51:01AM +0800, Michael Wang wrote: > This patch set optimize the RCU trace to make it perform better on the > platform with thousands of cpus. > > The optimization including: > -- the cpu info will be separated by each flavor of rcu. > -- implement the 'cpu units sequence reading' to avoid losing data. > > Michael Wang (7): > [PATCH 1/7] rcu: create directory for each flavor of rcu > [PATCH 2/7] rcu: fundamental facility for 'cpu units sequence reading' > [PATCH 3/7] rcu: optimize the 'rcudata' for RCU trace > [PATCH 4/7] rcu: optimize the 'rcudata.csv' for RCU trace > [PATCH 5/7] rcu: optimize the 'rcu_pending' for RCU trace > [PATCH 6/7] rcu: replace the old interface with the new one > [PATCH 7/7] rcu: remove the interface "rcudata.csv" > > Signed-off-by: Michael Wang > --- > b/kernel/rcutree_trace.c | 8 + > kernel/rcutree_trace.c | 368 ++++++++++++++++++++--------------------------- > 2 files changed, 170 insertions(+), 206 deletions(-) Queued for 3.8, thank you Michael! Thanx, Paul