From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752623AbcAVIFu (ORCPT ); Fri, 22 Jan 2016 03:05:50 -0500 Received: from www.linutronix.de ([62.245.132.108]:44542 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751522AbcAVIFm (ORCPT ); Fri, 22 Jan 2016 03:05:42 -0500 Date: Fri, 22 Jan 2016 09:04:33 +0100 (CET) From: Thomas Gleixner To: Prarit Bhargava cc: Petr Mladek , linux-kernel@vger.kernel.org, John Stultz , Xunlei Pang , Baolin Wang , Andrew Morton , Greg Kroah-Hartman , Tejun Heo , Peter Hurley , Vasily Averin , Joe Perches Subject: Re: [PATCH 0/2] printk, Add printk.clock kernel parameter [v2] In-Reply-To: <56A102D2.2040009@redhat.com> Message-ID: References: <1452688466-14877-1-git-send-email-prarit@redhat.com> <569660FA.2020802@redhat.com> <20160114125238.GU731@pathway.suse.cz> <56A102D2.2040009@redhat.com> User-Agent: Alpine 2.11 (DEB 23 2013-08-11) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 21 Jan 2016, Prarit Bhargava wrote: > So IIUC ... I want real time to be reported (not boot or TAI), use tglx's > suggestion of ktime_get_log_ts(), and implement printk.time=1 (local_clock()) > and printk.time=2 (real clock). I'd like to see an option for clock mono as well. That helps to correlate other things like user space tracing. Thanks, tglx