> -----Original Message-----
> From: Sylvain Wallez [mailto:[EMAIL PROTECTED]]
> Sent: maandag 28 januari 2002 10:11
> To: [EMAIL PROTECTED]
> Subject: Re: Who needs 386% speed up?
>
>
> Torsten Curdt wrote:
>
> >On Sun, 27 Jan 2002, Vadim Gritsenko wrote:
> >
> >>Hi,
> >>
> >>While playing with OptimizeIt, I found quite interesting
> piece of code
> >>in Xalan code, class org.apache.xml.utils.DefaultErrorHandler:
> >>
<snip>
> >
> >>PPS XSPs *are* fast. XSL is slow :-|
> >>
> >...but people say XSPs are not skaling very good. AFAIR
> (vaguely) Berin
> >tracked this down (also with optimizeIt) and it was a
> classloader issue.
> >Berin, is this right? Please correct me if I am wrong... I guess this
> >raised the monitoring thread...
> >
> ... or is this bad scalability a past myth ? I refactored
> ServerPagesGenerator at the beginning of december to make the
> document-completion stuff faster and optional (disabled by default).
> This was using a LinkedList to keep track of the open XML elements.
>
> For more info, see
> http://marc.theaimsgroup.com/?l=xml-cocoon-dev&m=100739488123738&w=2
>
I am one of the people that were confronted with the scalability problem on
a project. We still have a large site for a customer running on Cocoon 1
because it scaled better.
The migration project was put on hold because we could only get the site
performing about 10% better and scalability was a problem. Unfortunately I
have only been part of the project for the Cocoon 1 to 2 migration and was
not able to test the following things:
- the new serverpages generator with the optional document-completion stuff.
- using the classes generated by XSP directly as a generator (this could
show if there is a classloading problem).
I don't think you can call scalability 'a past myth' until Cocoon 2 has had
some real scalability tests, either in a real-world project or in some
testcase.
Michael
> The next thing that's needed for XSP to be as fast as a regular
> generator is a way to remove unneeded white space used for
> indenting in
> the XSP source : about half of produced SAX events are blank strings.
>
> Sylvain
>
> --
> Sylvain Wallez
> Anyware Technologies - http://www.anyware-tech.com
>
>
>
>
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