Guido van Rossum wrote:
My nightly run of pybench went up from the usual 7590ms per run to around 8200ms between Monday night and today. Can anyone explain this ?
Did you compare the outputs? There could be importants hint there! :-)
Unfortunately, the cronjob always uses the same file to store the benchmark data (I've changed that now, to be able to check on a day-per-day basis). Is there a way to check out a Python CVS version dated 2003-02-24 ? I could then give that a try again.
Maybe this checkin to ceval.c backfired?
---------------------------- revision 2.351 date: 2003/02/26 18:11:50; author: rhettinger; state: Exp; lines: +18 -4 Micro-optimizations. * List/Tuple checkexact is faster for the common case. * Testing for Py_True and Py_False can be inlined for faster looping. ----------------------------
Could be. I don't think inlining in ceval will help. The switch is too long already and it's much better to let the compiler/processor decide which parts should really get inlined since they have more knowledge about the platform than we do (sometimes :-). -- Marc-Andre Lemburg eGenix.com Professional Python Software directly from the Source (#1, Feb 27 2003)
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