linux-kernel - Re: [PATCH] x86: set_cyc2ns_scale() remove tsc_now and ns

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Message-ID: <3d8471ca0804110125r1b4e97c0ua419587a64c9b1c7@mail.gmail.com>
Date:	Fri, 11 Apr 2008 10:25:09 +0200
From:	"Guillaume Chazarain" <guichaz@...il.com>
To:	"Andi Kleen" <andi@...stfloor.org>
Cc:	"Ingo Molnar" <mingo@...e.hu>,
	"Karsten Wiese" <fzu@...gehoertderstaat.de>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86: set_cyc2ns_scale() remove tsc_now and ns_now

On Fri, Apr 11, 2008 at 10:06 AM, Andi Kleen <andi@...stfloor.org> wrote:
>  At some point you have to generate an offset to something and that
>  offset must be different for different frequencies, otherwise
>  you get large systematic errors

This offset is already there, represented by rq->clock - sched_clock()

-- 
Guillaume
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