Re: [Pywebsvcs-talk] ZSI performance with expatbuilder

[Joshua B. <JRB...@lb...>]

I've mentioned this before, but I've been using 4Suite for performance.

-josh


from Ft.Xml.Domlette import NonvalidatingReaderBase, NonvalidatingReader


class DomletteReader(NonvalidatingReaderBase):
     '''Used with ZSI.parse.ParsedSoap
     '''
     fromString = NonvalidatingReaderBase.parseString
     fromStream = NonvalidatingReaderBase.parseStream



On Dec 16, 2005, at 10:54 AM, Ivan R. Judson wrote:

>
> Someone here at ANL (Narayan Desai) suggested another alternative for
> speedups. It was a swig'ed version of libxml2, but I forget the name.
>
> I'd suggest we have try/excepts around this and make it standard. The
> toolkit will only benefit from being fast :-).
>
> --Ivan
>
>> -----Original Message-----
>> From: pyw...@li... [mailto:pywebsvcs- 
>> talk-
>> ad...@li...] On Behalf Of Thomas D. Uram
>> Sent: Friday, December 16, 2005 12:00 PM
>> To: pyw...@li...
>> Subject: [Pywebsvcs-talk] ZSI performance with expatbuilder
>>
>>
>> I was poking at ZSI performance last night, and based on this:
>>
>> http://mail.python.org/pipermail/xml-sig/2002-November/008722.html
>>
>> I replaced the current default parser (in ZSI/parse.py)
>>
>>     xml.dom.ext.reader import PyExpat.Reader
>>
>> with a minidom-based one, defined like so:
>>
>> from xml.dom import expatbuilder
>> class ExpatReaderClass:
>>      fromString = staticmethod(expatbuilder.parseString)
>>      fromStream = staticmethod(expatbuilder.parse)
>>
>> In my application, I'm seeing greater than an order of magnitude
>> performance improvement consistently.  I've tried it on OSX,
>> Linux, and Windows, using current ZSI cvs code and PyXML 0.8.[34].
>>
>>   The ZSI tests succeed using this different reader class (in
>> approximately
>> half the time).
>>
>> I'll continue poking at this, but I'd be interested to hear the
>> experiences of
>> other people with the minidom-based parser (e.g. whether they see  
>> the same
>> performance difference, whether there is somewhere brokenness, etc.).
>>
>> Tom
>>
>>
>>
>>
>>
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>
>
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