Re: Microsecond accuracy

Kotsovinos Vangelis
2000-12-08T00:51:35Z

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
> >
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> --
> ===================================================
> Karim Yaghmour
> karym@opersys.com
> Operating System Consultant
> (Linux kernel, real-time and distributed systems)
> ===================================================