Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754245Ab2FDRDK (ORCPT ); Mon, 4 Jun 2012 13:03:10 -0400 Received: from mx0b-00082601.pphosted.com ([67.231.153.30]:41772 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753013Ab2FDRDI (ORCPT ); Mon, 4 Jun 2012 13:03:08 -0400 Message-ID: <4FCCEA4E.5060102@fb.com> Date: Mon, 4 Jun 2012 10:03:10 -0700 From: Arun Sharma User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:12.0) Gecko/20120428 Thunderbird/12.0.1 MIME-Version: 1.0 To: Andrew Vagin CC: Oleg Strikov , Steven Rostedt , Frederic Weisbecker , Ingo Molnar , Peter Zijlstra , Subject: Re: [RFC] [PATCH 0/5] Teach perf tool to profile sleep times (V4) References: <1338797382-287275-1-git-send-email-avagin@openvz.org> In-Reply-To: <1338797382-287275-1-git-send-email-avagin@openvz.org> Content-Type: text/plain; charset="ISO-8859-1"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [192.168.18.252] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:5.6.7580,1.0.260,0.0.0000 definitions=2012-06-04_03:2012-05-21,2012-06-04,1970-01-01 signatures=0 X-Proofpoint-Spam-Reason: safe Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 587 Lines: 15 On 6/4/12 1:09 AM, Andrew Vagin wrote: > > * "sched/tracing: Add a new tracepoint for sleeptime" by Arun Sharma > It has been committed, but then reverted due to performance reason. Correctness actually. The first sample could potentially be bogus and needs to be discarded in userspace. Hasn't been a problem in practice for us. -Arun -- 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/