From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754148AbcDYJRB (ORCPT ); Mon, 25 Apr 2016 05:17:01 -0400 Received: from merlin.infradead.org ([205.233.59.134]:43136 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753722AbcDYJRA (ORCPT ); Mon, 25 Apr 2016 05:17:00 -0400 Date: Mon, 25 Apr 2016 11:16:56 +0200 From: Peter Zijlstra To: Vikas Shivappa Cc: tony.luck@intel.com, ravi.v.shankar@intel.com, fenghua.yu@intel.com, vikas.shivappa@intel.com, x86@kernel.org, linux-kernel@vger.kernel.org, hpa@zytor.com, tglx@linutronix.de, mingo@kernel.org, h.peter.anvin@intel.com Subject: Re: [PATCH 3/4] perf/x86/mbm: Fix mbm counting when RMIDs are reused Message-ID: <20160425091656.GF3430@twins.programming.kicks-ass.net> References: <1461371241-4258-1-git-send-email-vikas.shivappa@linux.intel.com> <1461371241-4258-4-git-send-email-vikas.shivappa@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1461371241-4258-4-git-send-email-vikas.shivappa@linux.intel.com> User-Agent: Mutt/1.5.21 (2012-12-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Apr 22, 2016 at 05:27:20PM -0700, Vikas Shivappa wrote: > When multiple instances of perf reuse RMID, then we need to start > counting for each instance rather than reporting the current RMID count. > This patch adds a st_count(start count) per event to track the same. what?