Re: [PATCH] x86: set_cyc2ns_scale() remove tsc_now and ns_now

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From: Guillaume Chazarain

Subject: Re: [PATCH] x86: set_cyc2ns_scale() remove tsc_now and ns_now

Date: Friday, April 11, 2008 - 1:25 am

On Fri, Apr 11, 2008 at 10:06 AM, Andi Kleen <andi@firstfloor.org> wrote:
quoted text>  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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Messages in current thread:

[PATCH] x86: set_cyc2ns_scale() remove tsc_now and ns_now, Karsten Wiese, (Thu Apr 10, 2:31 pm)

Re: [PATCH] x86: set_cyc2ns_scale() remove tsc_now and ns_now, Andi Kleen, (Fri Apr 11, 12:42 am)

Re: [PATCH] x86: set_cyc2ns_scale() remove tsc_now and ns_now, Ingo Molnar, (Fri Apr 11, 12:55 am)

Re: [PATCH] x86: set_cyc2ns_scale() remove tsc_now and ns_now, Andi Kleen, (Fri Apr 11, 1:06 am)

Re: [PATCH] x86: set_cyc2ns_scale() remove tsc_now and ns_now, Guillaume Chazarain, (Fri Apr 11, 1:25 am)

Re: [PATCH] x86: set_cyc2ns_scale() remove tsc_now and ns_now, Andi Kleen, (Fri Apr 11, 1:40 am)


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