[Zope-dev] Zope Tests: 5 OK

2007-10-26 Thread Zope Tests Summarizer
Summary of messages to the zope-tests list.
Period Thu Oct 25 12:00:00 2007 UTC to Fri Oct 26 12:00:00 2007 UTC.
There were 5 messages: 5 from Zope Unit Tests.


Tests passed OK
---

Subject: OK : Zope-2.7 Python-2.3.6 : Linux
From: Zope Unit Tests
Date: Thu Oct 25 20:51:26 EDT 2007
URL: http://mail.zope.org/pipermail/zope-tests/2007-October/008546.html

Subject: OK : Zope-2.8 Python-2.3.6 : Linux
From: Zope Unit Tests
Date: Thu Oct 25 20:52:56 EDT 2007
URL: http://mail.zope.org/pipermail/zope-tests/2007-October/008547.html

Subject: OK : Zope-2.9 Python-2.4.4 : Linux
From: Zope Unit Tests
Date: Thu Oct 25 20:54:26 EDT 2007
URL: http://mail.zope.org/pipermail/zope-tests/2007-October/008548.html

Subject: OK : Zope-2.10 Python-2.4.4 : Linux
From: Zope Unit Tests
Date: Thu Oct 25 20:55:56 EDT 2007
URL: http://mail.zope.org/pipermail/zope-tests/2007-October/008549.html

Subject: OK : Zope-trunk Python-2.4.4 : Linux
From: Zope Unit Tests
Date: Thu Oct 25 20:57:27 EDT 2007
URL: http://mail.zope.org/pipermail/zope-tests/2007-October/008550.html

___
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] Possible performance problem in Page Template engine?

2007-10-26 Thread Christian Scholz

Hi everybody!

When I was trying to fix portlets in Plone I was wondering why the 
render() method of my portlet actually gets called multiple times.


After a bit of investigation I ended up in the Five product in 
browser/providerexpressions.py where provider expressions also seem to 
be called twice for each provider statement.


The problem seems to be in Products/PageTemplates/Expressions.py in line 
199/200 (in Zope 2.10.4):


def evaluateStructure(self, expr):
 customized version in order to get rid of unicode
errors for all and ever

text = super(ZopeContext, self).evaluateStructure(expr)
return self._handleText(text, expr)

This construct seems to evaluate expr twice. One time in 
evaluateStructure() of the super class which is basically a call to 
self.evaluate(expr) (to be found in zope/tales/tales.py around line 713:


def evaluateStructure(self, expr):
return self.evaluate(expr)

and then again in _handleText():

def _handleText(self, text, expr):

text = self.evaluate(expr)

...

I now tried to remove the evaluation of expr in handleText() and in a 
very simple test using ab on my site I got twice the speed!


I might be missing something here of course but if every expression is 
evaluated twice then this is of course huge performance drain. And of 
course this fix was just a quick idea without much understanding of the 
underlying engine (e.g. not knowing if _handleText() is also called from 
somewhere else etc.)


So any Page Template experts here who can confirm this?

cheers,

Christian


--
Christian Scholz video blog: http://comlounge.tv
COM.lounge   blog: http://mrtopf.de/blog
Luetticher Strasse 10Skype: HerrTopf
52064 Aachen  Homepage: http://comlounge.net
Tel: +49 241 400 730 0   E-Mail [EMAIL PROTECTED]
Fax: +49 241 979 00 850   IRC: MrTopf, Tao_T

connect with me: http://mrtopf.de/connect


___
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] Re: Possible performance problem in Page Template engine?

2007-10-26 Thread Christian Scholz
Ok, little correction here: I used ploneout on plone-trunk and it then 
uses Zope trunk and thus 2.11.


This problem seems to be a new problem coming from refactoring:

r78767 | andreasjung | 2007-08-12 12:55:45 +0200 (So, 12 Aug 2007) | 4 lines

- Collector #2339: ZPT: fixed unicode issue when using the 'structure' 
directive
- ZopeContext: added evaluateStructure() and refactored _handleText() in 
order

to deal with unicode issues when using the 'structure' directive

-- christian

___
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 )