From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755085AbaCCVij (ORCPT ); Mon, 3 Mar 2014 16:38:39 -0500 Received: from one.firstfloor.org ([193.170.194.197]:54267 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754330AbaCCVih (ORCPT ); Mon, 3 Mar 2014 16:38:37 -0500 Date: Mon, 3 Mar 2014 22:38:36 +0100 From: Andi Kleen To: Don Zickus Cc: Andi Kleen , Peter Zijlstra , Joe Mario , Davidlohr Bueso , acme@ghostprotocols.net, LKML , jolsa@redhat.com, fowles@inreach.com, eranian@google.com, Arnaldo Carvalho de Melo , David Ahern , Frederic Weisbecker , Mike Galbraith , Paul Mackerras , Richard Fowles Subject: Re: [PATCH 08/19] perf c2c: Shared data analyser Message-ID: <20140303213836.GD22728@two.firstfloor.org> References: <1393609388-40489-9-git-send-email-dzickus@redhat.com> <87lhwvawc4.fsf@tassilo.jf.intel.com> <20140228194642.GM25953@redhat.com> <1393621411.2899.39.camel@buesod1.americas.hpqcorp.net> <20140303150531.GZ25953@redhat.com> <20140303172316.GA22728@two.firstfloor.org> <5314C4C4.1020304@redhat.com> <20140303184117.GL9987@twins.programming.kicks-ass.net> <20140303185819.GB22728@two.firstfloor.org> <20140303203257.GI25953@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140303203257.GI25953@redhat.com> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > Thoughts on how to determine which load is a potential store? I agree > every store needs to load the cacheline, but I wasn't sure if there was an > approach that could be applied to determine anything useful. HITM covers both load and stores. But it may have some skid. The main advantage of the address is that it is skidless. -Andi