Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752837AbaHAC7k (ORCPT ); Thu, 31 Jul 2014 22:59:40 -0400 Received: from mail-wi0-f169.google.com ([209.85.212.169]:63600 "EHLO mail-wi0-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751388AbaHAC7j (ORCPT ); Thu, 31 Jul 2014 22:59:39 -0400 Message-ID: <1406861975.5319.5.camel@marge.simpson.net> Subject: Re: [PATCH RFC tip/core/rcu 1/9] rcu: Add call_rcu_tasks() From: Mike Galbraith To: paulmck@linux.vnet.ibm.com Cc: Peter Zijlstra , linux-kernel@vger.kernel.org, mingo@kernel.org, laijs@cn.fujitsu.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@efficios.com, josh@joshtriplett.org, tglx@linutronix.de, rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com, dvhart@linux.intel.com, fweisbec@gmail.com, oleg@redhat.com, bobby.prani@gmail.com Date: Fri, 01 Aug 2014 04:59:35 +0200 In-Reply-To: <20140731163819.GS11241@linux.vnet.ibm.com> References: <20140728225556.GA19493@linux.vnet.ibm.com> <1406588180-21933-1-git-send-email-paulmck@linux.vnet.ibm.com> <20140729081416.GR20603@laptop.programming.kicks-ass.net> <20140729172304.GA16073@linux.vnet.ibm.com> <20140729173332.GM3935@laptop> <20140729180656.GY11241@linux.vnet.ibm.com> <1406726619.5889.17.camel@marge.simpson.net> <20140730142311.GJ11241@linux.vnet.ibm.com> <1406792228.6348.22.camel@marge.simpson.net> <20140731163819.GS11241@linux.vnet.ibm.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.3 Content-Transfer-Encoding: 7bit Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2014-07-31 at 09:38 -0700, Paul E. McKenney wrote: > Does building with CONFIG_NO_HZ_FULL_SYSIDLE=y slow things down even more? > If so, that would give me a rough idea of the cost of RCU's dyntick-idle > handling. Nope. Deltas are all down in the statistical frog hair. -Mike -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/