Good eyes. When I change the test from if ($phrase2 =~ /^network$/g) {} to while ($phrase2 =~ /^network$/g) {}, the time went from 2.70s to 5.97s. This is in line with what I'd expect -- if 5E6 successful matches and 5E6 failed matches take 2.7s on my CPU, the while loop, consisting of 1E7 successes and 1E7 failures, should take about twice as long.

In reply to Re^3: Why this code run faster? by gamache
in thread Why this code run faster? by Gangabass

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