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From: Thomas Gleixner <tglx@linutronix.de>
To: Prarit Bhargava <prarit@redhat.com>
Cc: John Stultz <john.stultz@linaro.org>,
	lkml <linux-kernel@vger.kernel.org>,
	Mark Salyzyn <salyzyn@android.com>,
	Jonathan Corbet <corbet@lwn.net>, Petr Mladek <pmladek@suse.com>,
	Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	Stephen Boyd <sboyd@codeaurora.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
	Christoffer Dall <cdall@linaro.org>,
	Deepa Dinamani <deepa.kernel@gmail.com>,
	Ingo Molnar <mingo@kernel.org>,
	Joel Fernandes <joelaf@google.com>,
	Kees Cook <keescook@chromium.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	"Luis R. Rodriguez" <mcgrof@kernel.org>,
	Nicholas Piggin <npiggin@gmail.com>,
	"Jason A. Donenfeld" <Jason@zx2c4.com>,
	Olof Johansson <olof@lixom.net>,
	Josh Poimboeuf <jpoimboe@redhat.com>,
	linux-doc@vger.kernel.org
Subject: Re: [PATCH v2] printk: Add boottime and real timestamps
Date: Tue, 1 Aug 2017 21:13:18 +0200 (CEST)	[thread overview]
Message-ID: <alpine.DEB.2.20.1708012112520.2682@nanos> (raw)
In-Reply-To: <882c304e-0677-1f08-cca7-78b1c38bcafe@redhat.com>

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

  parent reply	other threads:[~2017-08-01 19:13 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-01 12:55 [PATCH v2] printk: Add boottime and real timestamps Prarit Bhargava
2017-08-01 16:29 ` Luis R. Rodriguez
2017-08-01 18:33   ` Prarit Bhargava
2017-08-01 17:00 ` John Stultz
2017-08-01 17:35   ` Prarit Bhargava
2017-08-01 17:40     ` John Stultz
2017-08-01 19:13     ` Thomas Gleixner [this message]
2017-08-01 19:46     ` Mark Salyzyn

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