[Python-Dev] Re: [Python-checkins] python/dist/src/Misc NEWS, 1.936, 1.937
mwh@users.sourceforge.net wrote:
Update of /cvsroot/python/python/dist/src/Misc In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv3489/Misc
Modified Files: NEWS Log Message: "Fix" (for certain configurations of the planets, including recent gcc on Linux/x86)
[ 899109 ] 1==float('nan')
by implementing rich comparisons for floats.
Have you benchmarked this change ? Rich comparisons sound a lot like overhead and the case you are trying to fix here isn't exactly a common one. -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Source (#1, Feb 19 2004)
Python/Zope Consulting and Support ... http://www.egenix.com/ mxODBC.Zope.Database.Adapter ... http://zope.egenix.com/ mxODBC, mxDateTime, mxTextTools ... http://python.egenix.com/
2004-01-23: Released mxODBC.Zope.DA 1.0.8 http://zope.egenix.com/ ::: Try mxODBC.Zope.DA for Windows,Linux,Solaris,FreeBSD for free ! ::::
"M.-A. Lemburg"
mwh@users.sourceforge.net wrote:
Update of /cvsroot/python/python/dist/src/Misc In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv3489/Misc Modified Files: NEWS Log Message: "Fix" (for certain configurations of the planets, including recent gcc on Linux/x86) [ 899109 ] 1==float('nan') by implementing rich comparisons for floats.
Have you benchmarked this change ?
No. Hadn't even occurred to me. A unscientific test suggests a slowdown of about 1 percent for '1.0 != 2.0' and a speed up of about the same for '1.0 == 1.0'.
Rich comparisons sound a lot like overhead and the case you are trying to fix here isn't exactly a common one.
Doesn't look like it makes much odds here. Cheers, mwh -- ... but I'd rather not reinvent the wheel if I don't have to. On the other hand, if the currently instantiated version of the wheel consists of a square rock covered with moss, I might as well just start fresh. -- Roy Smith, comp.lang.python
[Reposting using a better subject line :-)] M.-A. Lemburg wrote:
mwh@users.sourceforge.net wrote:
Update of /cvsroot/python/python/dist/src/Misc In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv3489/Misc
Modified Files: NEWS Log Message: "Fix" (for certain configurations of the planets, including recent gcc on Linux/x86)
[ 899109 ] 1==float('nan')
by implementing rich comparisons for floats.
Have you benchmarked this change ?
Rich comparisons sound a lot like overhead and the case you are trying to fix here isn't exactly a common one.
-- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Source (#1, Feb 20 2004)
Python/Zope Consulting and Support ... http://www.egenix.com/ mxODBC.Zope.Database.Adapter ... http://zope.egenix.com/ mxODBC, mxDateTime, mxTextTools ... http://python.egenix.com/
2004-01-23: Released mxODBC.Zope.DA 1.0.8 http://zope.egenix.com/ ::: Try mxODBC.Zope.DA for Windows,Linux,Solaris,FreeBSD for free ! ::::
participants (2)
-
M.-A. Lemburg -
Michael Hudson