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Re: gettimeofday cost on intel?

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Re: gettimeofday cost on intel?

Subject: Re: gettimeofday cost on intel?
From: Matt Watson <email@hidden>
Date: Tue, 9 May 2006 09:26:11 -0700


On May 9, 2006, at 8:11 AM, Andrew Gallatin wrote:


I need a cheap way to measure events with at least a 10ms granularity
that is monotonically increasing, regardless of the CPU my thread has
been scheduled upon.


I'd be surprised if mach_absolute_time() does not work for this.

Can I count on gettimeofday() using the commpage
(and, hence, being very cheap) on x86 like it is on ppc?

gettimeofday() is implemented in the commpage for both PowerPC and Intel.

matt.
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