On Windows, Time::HiRes doesn't have very good resolution. 1/64 s sounds about right. The API it uses has the poor resolution.

In reply to Re: mod_perl 2.0 and Benchmark and Time::Hires results in multiples of .015625 by iburrell
in thread mod_perl 2.0 and Benchmark and Time::Hires results in multiples of .015625 by mbeast

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