[Python-Dev] Psyco testing results (original) (raw)

Itamar Shtull-Trauring twisted@itamarst.org
Fri, 01 Mar 2002 18:16:05 -0500

I downloaded psyco yesterday and did some tests (Python 2.1, P3/866). It works!

Basically, the key point is that you need to psyco.bind on the right functions. Doing psyco.gc() just slows things down. It takes a bit of testing to find out which functions to do it on.

Results: pystone without psyco: 9000 pystone with psyco: 32000!!! (I did psyco.bind(Proc0) in psytone.py) pystone with psyco.gc(): 4500

So pystone can speed things up by a factor of 3 on meaningless benchmarks ;)

I also got a small speedup in twisted.web - 305-320 hits/second instead of 275-285 hits/second, by doing psyco.bind on the function that runs select.select() (Twisted's equivalent of asyncore.poll()).