Hi, Victor Stinner <victor.stinner <at> haypocalc.com> writes: > > Summary (minimum total) on 32 bits CPU: > * Python 2.6.1: 8762 ms > * Python 3.0.1: 8977 ms > * Python 3.1a1: 9228 ms (slower than 3.0) Have you compiled with or without "--with-computed-gotos"? Regards Antoine.