(j3.2006) Question from a colleague
Van Snyder
Van.Snyder
Tue Apr 7 14:36:43 EDT 2009
A colleague asked me whether there is a performance benefit if the
compiler is informed that it is not necessary for a procedure to be
thread safe. This actually originated in a discussion of iterators in
python, CLU and alphard, where the activation record has to be preserved
between suspension and resumption, as for a coroutine. My colleague did
ask, however, whether our code would run faster if we could tell the
compiler it didn't need to be thread safe. We use 5 million cpu hours
per year, so a little improvement makes a big difference.
--
Van Snyder | What fraction of Americans believe
Van.Snyder at jpl.nasa.gov | Wrestling is real and NASA is fake?
Any alleged opinions are my own and have not been approved or
disapproved by JPL, CalTech, NASA, the President, or anybody else.
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