David C. Ullrich wrote:
f: 0.0158488750458
g: 0.000610113143921
h: 0.00200295448303
f: 0.0184948444366
g: 0.000257015228271
h: 0.00116610527039
I suspect you're hitting the point of diminishing returns with g, and
any further investigations into optimisation are purely for fun and
learning ;)
Tim Delaney 6  1460 
In article <ma*************************************@python.or g>,
"Delaney, Timothy (Tim)" <td******@avaya.comwrote:
David C. Ullrich wrote:
f: 0.0158488750458
g: 0.000610113143921
h: 0.00200295448303
f: 0.0184948444366
g: 0.000257015228271
h: 0.00116610527039
I suspect you're hitting the point of diminishing returns with g, and
any further investigations into optimisation are purely for fun and
learning ;)
No doubt. Hadn't meant to get into optimization, at least not
here, but various people made various comments - when someone
suggests this or that seems like I should try it.
Curiously <smug gring is exactly how I'd planned on doing it
before trying anything. The one thing that puzzles me about
all the results is why // is so much slower than / inside
that Psyco loop.
Tim Delaney
--
David C. Ullrich
On Fri, 2008-08-08 at 12:18 -0500, David C. Ullrich wrote:
Curiously <smug gring is exactly how I'd planned on doing it
before trying anything. The one thing that puzzles me about
all the results is why // is so much slower than / inside
that Psyco loop.
Tim Delaney
One possibility for the performance difference, is that as I understand
it the psyco developer has moved on to working on pypy, and probably
isn't interested in keeping psyco updated and optimized for new python
syntax.
Somebody correct me if I'm wrong, but last I heard there's no
expectation of a python 3.0 compatible version of psyco, either.
--
John Krukoff <jk******@ltgc.com>
Land Title Guarantee Company
John Krukoff:
One possibility for the performance difference, is that as I understand
it the psyco developer has moved on to working on pypy, and probably
isn't interested in keeping psyco updated and optimized for new python
syntax.
Somebody correct me if I'm wrong, but last I heard there's no
expectation of a python 3.0 compatible version of psyco, either.
But for me on the short term Python 3 is probably more important than
pypy, and I'd like to keep using Psyco...
Bye,
bearophile
In article
<47**********************************@f36g2000hsa. googlegroups.com>, be************@lycos.com wrote:
John Krukoff:
One possibility for the performance difference, is that as I understand
it the psyco developer has moved on to working on pypy, and probably
isn't interested in keeping psyco updated and optimized for new python
syntax.
Somebody correct me if I'm wrong, but last I heard there's no
expectation of a python 3.0 compatible version of psyco, either.
But for me on the short term Python 3 is probably more important than
pypy, and I'd like to keep using Psyco...
I feel the same way. Maybe someone will do it...
(I wonder how much work it would be to make something
like Psyco that only accepts a small subset of the language.)
Bye,
bearophile
--
David C. Ullrich
On 8 Aug, 20:36, John Krukoff <jkruk...@ltgc.comwrote:
>
One possibility for the performance difference, is that as I understand
it the psyco developer has moved on to working on pypy, and probably
isn't interested in keeping psyco updated and optimized for new python
syntax.
More here on the current state of play with Psyco: http://www.europython.org/Talks%20an...s/Abstracts#53
Somebody correct me if I'm wrong, but last I heard there's no
expectation of a python 3.0 compatible version of psyco, either.
"I doubt it" is what the presentation referenced above says on the
matter.
Paul
On Aug 8, 7:18 pm, "David C. Ullrich" <dullr...@sprynet.comwrote:
The one thing that puzzles me about
all the results is why // is so much slower than / inside
that Psyco loop.
Just an oversight. The optimization about '/' between integers
was not copied for the case of '//' between integers. Fixed
in the svn head :-)
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