From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Ahern Subject: Re: perf script timestamp Date: Wed, 24 Apr 2013 07:10:48 -0600 Message-ID: <5177D9D8.4060209@gmail.com> References: <201304241622032855179@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mail-pb0-f51.google.com ([209.85.160.51]:51497 "EHLO mail-pb0-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753491Ab3DXNKy (ORCPT ); Wed, 24 Apr 2013 09:10:54 -0400 Received: by mail-pb0-f51.google.com with SMTP id rr4so449798pbb.38 for ; Wed, 24 Apr 2013 06:10:53 -0700 (PDT) In-Reply-To: <201304241622032855179@gmail.com> Sender: linux-perf-users-owner@vger.kernel.org List-ID: To: OSDepend Cc: linux-perf-users On 4/24/13 2:22 AM, OSDepend wrote: > Hi guys, > I just try to use perf script, and get some thing like below: > java 15893 [015] 96380.588871: timer_cancel: timer=0xffff8804379d6698 > java 15721 [010] 96380.588872: timer_cancel: timer=0xffff8800be3d6698 > java 15893 [015] 96380.588875: timer_expire_entry: timer=0xffff8804379d6698 function=delayed_work_timer_fn now=4391194790 > java 15721 [010] 96380.588876: timer_expire_entry: timer=0xffff8800be3d6698 function=delayed_work_timer_fn now=4391194790 > > I want to know exactly about the time units of the events, such as 96380.588871, and 96380.588872. > The number befor "." is second or millisecond? and Is the number after "." nanoseconds or microseconds? > I'm a little confused about the documation for ktime_t, please help me out! times are . David