On Fri, 26 Feb 2016 08:31:07 -0600
Ranjan Maitra wrote:

> I have been using get_rusage but I was wondering whether there is a better 
> way?

You most accurate wall time is going to come from looking at
the TSC register (if you are on an x86 processor)

https://en.wikipedia.org/wiki/Time_Stamp_Counter
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