From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Ahern Subject: Re: Perf event for Wall-time based sampling? Date: Fri, 19 Sep 2014 08:55:43 -0600 Message-ID: <541C43EF.8090305@gmail.com> References: <2221771.b2oSN5LR6X@milian-kdab2> <20140918203625.GM2770@kernel.org> <541C3B0B.3030706@gmail.com> <1423473.AV2A0F0SQn@milian-kdab2> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mail-pd0-f182.google.com ([209.85.192.182]:48322 "EHLO mail-pd0-f182.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756553AbaISOzr (ORCPT ); Fri, 19 Sep 2014 10:55:47 -0400 Received: by mail-pd0-f182.google.com with SMTP id g10so96029pdj.27 for ; Fri, 19 Sep 2014 07:55:46 -0700 (PDT) In-Reply-To: <1423473.AV2A0F0SQn@milian-kdab2> Sender: linux-perf-users-owner@vger.kernel.org List-ID: To: Milian Wolff Cc: Arnaldo Carvalho de Melo , linux-perf-users , Namhyung Kim , Ingo Molnar , Joseph Schuchart On 9/19/14, 8:39 AM, Milian Wolff wrote: >> This has been discussed before: >> > http://thread.gmane.org/gmane.linux.kernel/1307306 >> > >> >Example on the perf wiki: >> > https://perf.wiki.kernel.org/index.php/Tutorial#Profiling_sleep_times > Right, I also mentioned this in my initial email. This is_not_ what I want > though:) D'oh. missed that. And I did find a blurb on StackOverflow that distros are now disabling SCHEDSTATS so commands cannot rely on sched_stat tracepoints. Now I am glad I never converted my timehist command to rely on those. David