linux-kernel - Re: [PATCH] Introduce boot based time

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Message-ID: <20070510200033.GA31048@redhat.com>
Date:	Thu, 10 May 2007 22:00:33 +0200
From:	Tomas Janousek <tjanouse@...hat.com>
To:	Ingo Oeser <ioe-lkml@...eria.de>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	john stultz <johnstul@...ibm.com>,
	linux-kernel@...r.kernel.org, tsmetana@...hat.com, riel@...hat.com
Subject: Re: [PATCH] Introduce boot based time

Hi Ingo,

On Thu, May 10, 2007 at 09:48:59PM +0200, Ingo Oeser wrote:
> > +static unsigned long total_sleep_time;
> 
> Could you make that a ktime_t (or struct ktime)?
> There are machines, which sleep more than they are awake. 
> Just imagine a surveillance camera triggered by door entrance.
> 
> Yes, these things might run Linux (e.g. on "cris" architecture).
> 
> Or your VCR.
> Yes, these devices might sleep more than they are awake, 
> if you are not a TV junkie :-)

The value is in seconds. It can hold up to 136 years of sleep. I'd rather
spend the money on beer than on a VCR that I'm gonna suspend for 137 years :)

(or do we have a 16-bit long anywhere?)

Regards,
-- 
TJ. (Brno, CZ), BaseOS, Red Hat
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