There are lies, damn lies and microbenchmarks...

Posted May 20, 2010 16:53 UTC (Thu) by khim (subscriber, #9252)
In reply to: Sorry, but this is not true at all by djc
Parent article: PyPy: the other new compiler project

This is exactly what I'm talking about: creators of the compiler always know where they can beat everyone else. Also note that even author of benchmark in question readily admit they are comparing totally different algorithms! This benchmark is almost entirely tied to speed of allocator: while C version uses some hand-coded allocator to make speed of malloc less relevant it's not the best allocator there.

Sure, changes in the algorithm can buy you more speed then microoptimizations, but... how it's related to topic under discussion?