From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752987AbbE0KLy (ORCPT ); Wed, 27 May 2015 06:11:54 -0400 Received: from bombadil.infradead.org ([198.137.202.9]:52263 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751826AbbE0KLv (ORCPT ); Wed, 27 May 2015 06:11:51 -0400 Date: Wed, 27 May 2015 12:11:36 +0200 From: Peter Zijlstra To: Stephane Eranian Cc: Ingo Molnar , Vince Weaver , Jiri Olsa , "Liang, Kan" , LKML Subject: Re: [PATCH v2 02/11] perf/x86: Improve HT workaround GP counter constraint Message-ID: <20150527101136.GX3644@twins.programming.kicks-ass.net> References: <20150522132905.416122812@infradead.org> <20150522133135.447912500@infradead.org> <20150526101548.GL3644@twins.programming.kicks-ass.net> <20150526131950.GO3644@twins.programming.kicks-ass.net> <20150526160712.GQ18673@twins.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: 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 Wed, May 27, 2015 at 02:01:04AM -0700, Stephane Eranian wrote: > But are you removing the incremental calls from the upper layer via > x86_pmu.add()? > If not, then you are saying the dynamic constraint you got for > offcore_response, LBR > or the HT workaround is still the best avail now. sigh, see I knew I was missing something :/ So then for c->flag & DYNAMIC we should put and get again, right?