edsiper at gmail.com
Tue Dec 18 16:09:46 EST 2007
I've been doing some Psyco test. I'll post a new blog entry about it
and send the information to the ml.
On Dec 18, 2007 6:04 PM, John Richard Moser <nigelenki at comcast.net> wrote:
> Jameson "Chema" Quinn wrote:
> > I suggest taking a look at PyPy for Python, which will dynamic
> > recompile
> > Python to native code and likely give some good performance benefits. I
> > really can't stand JIT compilation and would prefer something that takes
> > advantage of Mono's own facilities, to centralize the effort in the JIT
> > at least (Mono has nice stuff), but IronPython is Microsoft Permissive
> > License which is not OSI approved.
> > Has anyone looked at Psyco on the XO? The point is, no generic mono JIT
> > is going to be as smart about guessing the 95% case for Python, as
> > something written specifically for Python.
> The CIL dynamic re-compiler has a well-developed optimizer and a bunch
> of other stuff, including an awesome garbage collector. The newer
> version use a compacting garbage collector IIRC; though Python might use
> reference counting internally (it might be better that way, but consider
> the interpreter itself would be in CIL and use reflection ...).
> It's basically Python -> CIL -> CIL optimizer, not Python -> CIL -> C#
> optimizer. Granted, yes, an optimizer aware of specific language ABI
> specifics (like classes for C++, functions and structures for C, ect)
> can pre-optimize and then let the lower level optimizer re-optimize the
> code better (I think that's how GCC does it, optimizes a Gimple tree
> based on language and then does a general optimization based on
> hardware); but a CIL reflection compiler could compile Python into an
> internal tree, optimize it, emit optimized CIL, and let Mono generate
> optimized x86 code (as in, optimize the generated x86 code).
> > Disclaimer: I have no experience to back this up.
> I have fuzzy understanding of compiler internals, nothing formal and
> nothing really great. Ask a gcc guy and a Mono guy.
> > Jameson
> Bring back the Firefox plushy!
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