From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <michael@ellerman.id.au>
Subject: Re: [PATCH 2/3] Modify sched_clock() to make CONFIG_PRINTK_TIME
	more sane.
From: Michael Ellerman <michael@ellerman.id.au>
To: Tony Breeds <tony@bakeyournoodle.com>
In-Reply-To: <20070704040431.1A13432C46D@thor>
References: <20070704040431.1A13432C46D@thor>
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Date: Wed, 04 Jul 2007 14:27:48 +1000
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On Wed, 2007-07-04 at 14:04 +1000, Tony Breeds wrote:
> When booting a current kernel with CONFIG_PRINTK_TIME enabled you'll
> see messages like:
>=20
> [    0.000000] time_init: decrementer frequency =3D 188.044000 MHz
> [    0.000000] time_init: processor frequency   =3D 1504.352000 MHz
> [3712914.436297] Console: colour dummy device 80x25
>=20
> This cause by the initialisation of tb_to_ns_scale in time_init(), sudden=
ly the
> multiplication in sched_clock() now does something :).  This patch modifi=
es
> sched_clock() to report the offset since the machine booted so the same
> printk's now look like:
>=20
> [    0.000000] time_init: decrementer frequency =3D 188.044000 MHz
> [    0.000000] time_init: processor frequency   =3D 1504.352000 MHz
> [    0.000135] Console: colour dummy device 80x25
>=20
> Effectivly including the uptime in printk()s.

Is this what other archs do?

cheers

--=20
Michael Ellerman
OzLabs, IBM Australia Development Lab

wwweb: http://michael.ellerman.id.au
phone: +61 2 6212 1183 (tie line 70 21183)

We do not inherit the earth from our ancestors,
we borrow it from our children. - S.M.A.R.T Person

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