On 4/5/06, Benji York <[EMAIL PROTECTED]> wrote: > Martin v. Löwis wrote: > > What operating system and compiler? > > Oops, should have included that: > Ubuntu Breezy, Kernel 2.6.12-10-686 > GCC 4.0.2 20050808 (prerelease) (Ubuntu 4.0.1-4ubuntu9)
32-bit or 64-bit? I would expect a modest diff on 64-bit between 2.4 and 2.5. You built both HEAD and 2.4 from scratch, right? To get more consistent results, you need to pass an option to gcc to tell it to use consistent branch prediction (or something like that). Otherwise, you will not get consistent results with the same source code. This option is not in the build system, you'll need to research it. I don't expect that to make more than a couple tenths of a percent diff though. I haven't done any profiling and I'm not likely to before 2.5 is released. It would be good if someone took a look at this though. n _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
