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Date: Tue, 5 Mar 2002 19:58:24 -0800 (PST)
From: Davide Libenzi <davidel@xmailserver.org>
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To: Ben Greear <greearb@candelatech.com>
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Subject: Re: a faster way to gettimeofday?
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On Tue, 5 Mar 2002, Ben Greear wrote:

> I have a program that I very often need to calculate the current
> time, with milisecond accuracy.  I've been using gettimeofday(),
> but gprof shows it's taking a significant (10% or so) amount of
> time.  Is there a faster (and perhaps less portable?) way to get
> the time information on x86?  My program runs as root, so should
> have any permissions it needs to use some backdoor hack if that
> helps!

If you're on x86 you can use collect rdtsc samples and convert them to ms.
You'll get even more then ms accuracy.




- Davide



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