Re: [Zope-dev] Parrot
On Mon, 21 Mar 2005 10:54:11 -0500, Andrew Langmead [EMAIL PROTECTED] wrote: I haven't tried the latest version of Parrot, but I'd think that Zope would be the last thing that will run successfully. I don't know that Parrot tries to emulate Python's C API either, and Zope definately contains several C extensions. These would need to be re-written in Python or to use Parrot's API. So I suspect there's a good bit of work to do to really make it run. -Fred -- Fred L. Drake, Jr.fdrake at gmail.com Zope Corporation ___ Zope-Dev maillist - Zope-Dev@zope.org http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Parrot
On Mar 18, 2005, at 9:18 PM, Alan Milligan wrote: I know a year or so ago, someone received a pie in the face at a conference because Parrot still wasn't as fast as the native Python interpreter, but maybe this too has changed with this release. I wouldn't say that Dan got his pie because it wasn't fast enough. It was more that it wasn't complete enough. At the time, Parrot could only run four out of the seven tests that Dan and Guido agreed on. Of the four tests that ran, Parrot was faster at three, and twice as slow on the fourth. http://www.sidhe.org/~dan/blog/archives/000371.html (I guess if you consider didn't run as took an infinitely long time to run, Parrot averaged as being slower.) I'm very interested to know if anyone is investigating Parrot. In http://mail.zope.org/pipermail/zope/2004-August/152678.html Tim Peters said Zope plays in Python's dark corners like few other apps dare and describes some bugs in Python 2.3.3 that were fixed in 2.3.4 because the bug was found when trying to run Zope. I haven't tried the latest version of Parrot, but I'd think that Zope would be the last thing that will run successfully. ___ Zope-Dev maillist - Zope-Dev@zope.org http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Parrot
On Mar 21, 2005, at 11:59 AM, Alan Milligan wrote:
I'm not sure that it's necessarily this difficult. Perhaps it's simply
a matter of implementing Python's import/dlopen semantics and running
this C natively on the VM.
Take a look at something like
Zope-{version}/lib/Components/ExtensionClass/src
and look at the Py{mumble} functions that get called. To get Zope to
work under Python, either those classes will need to be written, or
compatible versions of those that interact with parrot. (which is what
Fred was asking about whether Parrot supported Python's C API) So faced
with the choice of re-writing things like ExtensionClass or emulating
enough of the Python C API to support them, I'd start with writing a
conversion library.
Some of the replacements would be easy. For example having a Py_None
global that can fetch the None object. Things like PyArg_ParseTuple
look like they map fairly well to
http://search.cpan.org/~ltoetsch/parrot-0.1.2/docs/pdds/
pdd16_native_call.pod Some of them (lets say PyModule_GetDict) might
be more difficult. The amount of glue code needed to convert
ExtensionClass's idea of what the cPython interpreter provides into the
functionality that the Parrot VM provides will start increasing. (does
a Parrot module have the equivalent of an embedded dictionary object?)
None of this is a show stopper, but it would take some time to get it
to work.
___
Zope-Dev maillist - Zope-Dev@zope.org
http://mail.zope.org/mailman/listinfo/zope-dev
** No cross posts or HTML encoding! **
(Related lists -
http://mail.zope.org/mailman/listinfo/zope-announce
http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Parrot
Alan Milligan wrote: An obvious benefit is the genuine concurrency it offers over GIL on SMP hardware. Anyone running an enterprise Zope or Plone installation would desire to take advantage of this. ZEO, multiple clients and processor affinity settings already offer this, and with no extra development needed... Chris -- Simplistix - Content Management, Zope Python Consulting - http://www.simplistix.co.uk ___ Zope-Dev maillist - Zope-Dev@zope.org http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Parrot
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Chris Withers wrote: | ZEO, multiple clients and processor affinity settings already offer | this, and with no extra development needed... | What userland tools are you using to implement processor affinity?? Alan -BEGIN PGP SIGNATURE- Version: GnuPG v1.2.4 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFCP5NrCfroLk4EZpkRAiXAAKCN8+JKtnzxR1yHUE83Qud88DzwkACeOzWo cmcK+vUjCigvSoVBe+j0AR8= =8I62 -END PGP SIGNATURE- ___ Zope-Dev maillist - Zope-Dev@zope.org http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
[Zope-dev] Parrot
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Parrot 0.1.2 was released a couple of weeks ago. According to the release notes, there's now better python support, separated into dynaclasses. Unfortunately, I haven't really managed to keep up with the Parrot project, but I think it quite possibly represents the strategic future of Zope. An obvious benefit is the genuine concurrency it offers over GIL on SMP hardware. Anyone running an enterprise Zope or Plone installation would desire to take advantage of this. I know a year or so ago, someone received a pie in the face at a conference because Parrot still wasn't as fast as the native Python interpreter, but maybe this too has changed with this release. I'm very interested to know if anyone is investigating Parrot. Alan -BEGIN PGP SIGNATURE- Version: GnuPG v1.2.4 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFCO4vpCfroLk4EZpkRAsVVAKCQBlffkkhd86BX/KxwJcYSXPx5pwCfdiU8 Ybnu4zF97xG8SSYxYUY64I8= =KzS4 -END PGP SIGNATURE- ___ Zope-Dev maillist - Zope-Dev@zope.org http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
