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Date: Fri, 8 Dec 2000 02:18:26 +0200 (EET)
From: Kotsovinos Vangelis <kotsovin@ics.forth.gr>
To: Karim Yaghmour <karym@opersys.com>
cc: linux-kernel@vger.kernel.org
Subject: Re: Microsecond accuracy
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Ok, I'll check it out...

Thank you very much,

--) Vangelis


On Thu, 7 Dec 2000, Karim Yaghmour wrote:

> 
> You might want to try the Linux Trace Toolkit. It'll give you microsecond
> accuracy on program execution time measurement.
> 
> Check it out:
> http://www.opersys.com/LTT
> 
> Karim
> 
> Kotsovinos Vangelis wrote:
> > 
> > Is there any way to measure (with microsecond accuracy) the time of a
> > program execution (without using Machine Specific Registers) ?
> > I've already tried getrusage(), times() and clock() but they all have
> > 10 millisecond accuracy, even though they claim to have microsecond
> > acuracy.
> > The only thing that seems to work is to use one of the tools that measure
> > performanc through accessing the machine specific registers. They give you
> > the ability to measure the clock cycles used, but their accuracy is also
> > very low from what I have seen up to now.
> > 
> > Thank you very much in advance
> > 
> > --) Vangelis
> > 
> > -
> > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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> 
> -- 
> ===================================================
>                  Karim Yaghmour
>                karym@opersys.com
>           Operating System Consultant
>  (Linux kernel, real-time and distributed systems)
> ===================================================
> 

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