time() vs gettimeofday()

[karron at MCIRPS2.MED.NYU.EDU]

Which is the better time call to use if you only are interested
in measuring clock seconds ? (not system time, cpu time, but
real time as measured by a stop watch ).

How do you know if the Performance Measurement Utilities are installed ?
I don't remember seeing them on my 3.3 inst tape. Where are they ?

dan.
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