[Python-Dev] Performance compares

M.-A. Lemburg mal@lemburg.com
Thu, 17 May 2001 11:18:36 +0200


"M.-A. Lemburg" wrote:
> 
> Michael Hudson wrote:
> >
> > "M.-A. Lemburg" <mal@lemburg.com> writes:
> >
> > > Sure are... but I'm not so much interested in the absolute numbers
> > > -- it's the hot-spots which showed up that scare me: e.g. dictionary
> > > creation seems to have suffered along the way for some reason,
> > > functions calls are even slower now than they were previously and
> > > other important tasks such a instance creation take a similar hit
> > > (probably as a result of the other two).
> >
> > Have you tried fiddling with gc parameters?  If the GC does a multi
> > generation trawl through the heap in the middle of some test, that
> > might skew the numbers in unexpected ways.
> >
> > Or not, of course.
> 
> No, I haven't tried fiddling with those. I'm not sure I want
> to either ;-) ... the reason is that applications won't switch
> off GC for execution and so the tests is closer to real life.
> 
> Still, I'll rerun the test suite using gc.disable() and post the
> results.

Turns out, the difference is not noticable (< 1%).

-- 
Marc-Andre Lemburg
CEO eGenix.com Software GmbH
______________________________________________________________________
Company & Consulting:                           http://www.egenix.com/
Python Software:                        http://www.lemburg.com/python/