From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752253AbdHATNv (ORCPT ); Tue, 1 Aug 2017 15:13:51 -0400 Received: from Galois.linutronix.de ([146.0.238.70]:47529 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752053AbdHATNt (ORCPT ); Tue, 1 Aug 2017 15:13:49 -0400 Date: Tue, 1 Aug 2017 21:13:18 +0200 (CEST) From: Thomas Gleixner To: Prarit Bhargava cc: John Stultz , lkml , Mark Salyzyn , Jonathan Corbet , Petr Mladek , Sergey Senozhatsky , Steven Rostedt , Stephen Boyd , Andrew Morton , Greg Kroah-Hartman , "Paul E. McKenney" , Christoffer Dall , Deepa Dinamani , Ingo Molnar , Joel Fernandes , Kees Cook , Peter Zijlstra , Geert Uytterhoeven , "Luis R. Rodriguez" , Nicholas Piggin , "Jason A. Donenfeld" , Olof Johansson , Josh Poimboeuf , linux-doc@vger.kernel.org Subject: Re: [PATCH v2] printk: Add boottime and real timestamps In-Reply-To: <882c304e-0677-1f08-cca7-78b1c38bcafe@redhat.com> Message-ID: References: <1501592128-11334-1-git-send-email-prarit@redhat.com> <882c304e-0677-1f08-cca7-78b1c38bcafe@redhat.com> User-Agent: Alpine 2.20 (DEB 67 2015-01-07) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 1 Aug 2017, Prarit Bhargava wrote: > On 08/01/2017 01:00 PM, John Stultz wrote: > > Its been asked already, but I've not yet seen an answer. > > Sorry for missing this. > > > Is there a reason your not also adding PRINTK_TIME_BOOT here (which to > > me would be more generally useful then REAL or MONO)? > > REAL has been useful to me in debug cases where events on the system were timed > to the wall clock (ex cron job running at 3AM). I hadn't really thought much > about using BOOT TBH because MONO seemed to work just fine. > > Mark Salyzyn, did you want BOOT or MONO? We really want both. Thanks, tglx