Message-ID: <4FAFB57C.40906@teksavvy.com>
Date: Sun, 13 May 2012 09:22:04 -0400
From: Mark Lord <kernel@teksavvy.com>
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To: Linus Torvalds <torvalds@linux-foundation.org>
CC: Sasha Levin <levinsasha928@gmail.com>, Kay Sievers <kay@vrfy.org>,
        Greg KH <gregkh@linuxfoundation.org>, Yinghai Lu <yinghai@kernel.org>,
        Joe Perches <joe@perches.com>, Ingo Molnar <mingo@kernel.org>,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH RESEND 1/3] printk: convert byte-buffer to variable-length
 record buffer
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On 12-05-12 02:35 PM, Linus Torvalds wrote:
>
>  (b) The one thing I have often wanted is not "after how many seconds
> of boot", but "when". So it would actually be nice if the absolute
> time was converted into local time. The kernel can actually do that,
> so I suspect that the best format for the relative timestamps would
> really be something like
> 
>    > [May12 11:27] foo
>    > [May12 11:28] bar
>    > [  +5.077527] zoot
>    > [ +10.235225] foo
>    > [  +0.002971] bar
>    > [May12 11:29] zoot
>    > [  +0.003081] foo
> 
> because that would be really useful sometimes.
> 
> (And no, never mind the year. If you log those things long-term, the
> year will be in the full log, so logging the year in the dmesg is just
> pointless.)
> 
> I dunno. The above is what I would have liked to see quite often. I
> look at dmesg, and notice that I had an WARN_ON_ONCE in it, and I have
> no idea when it happened, because the "seconds since boot" is totally
> useless information for me, as I'm too lazy to try to use /proc/uptime
> to calculate what it is.


Look in syslog ?

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