Please note that both tests are running on the same system, using the same version of perl. The *only* difference is the use of the perl debugger.

Besides which, if it were "windows making perl wait", the times would get spread wider apart, not grouped together in bunches. The latter effect suggests that perl is calling gettimeofday() more frequently that the timer is running.

Given the timer is running 3,579,545 times a second, to produce the list of 30 consequetively identical times, The debugger would have to be running the loop 90 million times a second. Which would be nice, but I think we may have to wait for P7 to achieve that kind of performance :)