Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756042Ab2JQUXS (ORCPT ); Wed, 17 Oct 2012 16:23:18 -0400 Received: from mail-vb0-f46.google.com ([209.85.212.46]:58572 "EHLO mail-vb0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753279Ab2JQUXR (ORCPT ); Wed, 17 Oct 2012 16:23:17 -0400 Date: Wed, 17 Oct 2012 16:24:02 -0400 (EDT) From: Vince Weaver To: Ingo Molnar cc: linux-kernel@vger.kernel.org, Peter Zijlstra , Paul Mackerras , Ingo Molnar , Arnaldo Carvalho de Melo , eranian@gmail.com, "Meadows, Lawrence F" Subject: Re: [PATCH 0/3] perf_event: enable overflow interrupts on KNC In-Reply-To: <20121017180753.GA7291@gmail.com> Message-ID: References: <20121017180753.GA7291@gmail.com> User-Agent: Alpine 2.02 (DEB 1266 2009-07-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1305 Lines: 31 On Wed, 17 Oct 2012, Ingo Molnar wrote: > How well tested is this on real hardware and how robust is the > hardware with this? Since it's a new PMU driver for v3.7, and if > these are reasonably well tested, then we could send these to > Linus via perf/urgent, so that they don't miss and have to wait > all the way to v3.8. You probably won't like this answer. The patches have been tested against the 2.6.34 kernel that Intel provides for KNC (found here http://software.intel.com/en-us/forums/topic/278102 ) perf stat, perf record, and PAPI have all been tested and work. The patches I've sent are the 2.6.34 ones forward ported to the 3.7-rc1 kernel. I haven't been able to run a 3.7-rc kernel on the KNC board, because there are other patches to mainline needed to get KNC running and they'd all have to be forward-ported from 2.6.34. Since the knc pmu driver closely models the p6 one, it was straightforward to use it as a basis for the forward port. Everything _should_ work but I've only compile tested. Vince vincent.weaver@maine.edu -- 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/