[dagw]

According to the article their Node solution took 4 seconds to run (down from 7 seconds after some optimization) and their C solution 0.03 seconds. Now maybe they could have sped up their node code more, but those sort of improvements hardly count as premature optimization.

[ori_b]

Since the usual expected slowdown for jit compiled scripts is somewhere on the order of 5 times (obviously, this is a very loose guess, and the number will vary by script, style, and workload), I wonder what they could have been doing to cause a 200x slowdown.