On 1/17/2013 10:29 AM, Leonard, Arah wrote:
Hello fellow Python programmers,
I’m building a 32-bit CPython 2.7.3 distro for Windows using the MS
Visual Studio Professional 2008 SP1 (and all hotfixes) MSVC 9 compiler.
My build works, technically, but it also happens to benchmark over 30%
slower than the precompiled binaries in the distributed Python 2.7.3
MSI. Can anyone point me in the direction of some thoroughly detailed
build documentation so that I can figure out how to get that 30% back
with my build? The only documentation that I can find just says MSVC 9,
period. There’s no mention of SP1 or not, hotfixes, nor of any specific
compiler/linker optimizations used to build the official distro.
Something, somewhere, has to be significantly different between our
builds for a 30% performance difference, and it’d probably be handy for
the Python community to know how to avoid the same pitfall that cost me
performance so that we can all get the most out of Python. Any and all
help will be greatly appreciated. Thanks.
The 'documentation' of how we build Python on Windows is the PCBuild
directory in the source tree.
--
Terry Jan Reedy
--
http://mail.python.org/mailman/listinfo/python-list
