<?php $revs = 10000; $time_start = microtime(true); for ($n=0; $n<$revs; $n++) { usleep(0); } $time_end = microtime(true); $time = $time_end - $time_start; echo "$time seconds\n"; $ops = ($time * 1000 * 1000) / $revs; echo "$ops op/microsecond";
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