Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751772Ab0HSIPT (ORCPT ); Thu, 19 Aug 2010 04:15:19 -0400 Received: from mga02.intel.com ([134.134.136.20]:4996 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751449Ab0HSIPQ (ORCPT ); Thu, 19 Aug 2010 04:15:16 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.56,232,1280732400"; d="scan'208";a="546726278" Subject: Re: [RFC PATCH 0/3] perf: show package power consumption in perf From: Lin Ming To: Matt Fleming Cc: Peter Zijlstra , "Zhang, Rui" , LKML , "mingo@elte.hu" , "robert.richter@amd.com" , "acme@redhat.com" , "paulus@samba.org" , "dzickus@redhat.com" , "gorcunov@gmail.com" , "fweisbec@gmail.com" , "Brown, Len" , Matthew Garrett In-Reply-To: <20100819075410.GA25755@console-pimps.org> References: <1282118350.5181.115.camel@rui> <1282134329.1926.3918.camel@laptop> <20100818124116.GA17957@console-pimps.org> <1282188497.11858.94.camel@minggr.sh.intel.com> <20100819075410.GA25755@console-pimps.org> Content-Type: text/plain; charset="UTF-8" Date: Thu, 19 Aug 2010 16:15:38 +0800 Message-ID: <1282205738.11858.110.camel@minggr.sh.intel.com> Mime-Version: 1.0 X-Mailer: Evolution 2.30.2 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1427 Lines: 41 On Thu, 2010-08-19 at 15:54 +0800, Matt Fleming wrote: > On Thu, Aug 19, 2010 at 11:28:17AM +0800, Lin Ming wrote: > > On Wed, 2010-08-18 at 20:41 +0800, Matt Fleming wrote: > > > > > > I had a quick look over the patches and Peter is right - the group > > > events stuff would probably fit quite well here. Unfortunately, due to > > > holidays and things, I haven't been able to get them finished > > > yet. I'll get on that ASAP. > > > > Hi, Matt > > > > What's the "group events stuff"? > > Is there some discussion on LKML or elsewhere I can have a look at? > > > > Thanks, > > Lin Ming > > The relevant information can be found here in this thread, > http://lkml.org/lkml/2010/8/4/174. I'm working on some patches for > this but they're not finished yet. I can probably get something to > show by next week. Thanks. > > The discussion started because the performance counters on SH do not > generate an interrupt on overflow, so we need to periodically sample > them. Am I correct in thinking that the energy counters also do not > generate an interrupt on overflow and that's why you wrote the event > as a software event? I think so. Rui, could you confirm this? -- 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/