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Re: [xml] ctxt->token patches
- From: Daniel Veillard <veillard redhat com>
- To: Peter Jacobi <pj walter-graphtek com>
- Cc: xml gnome org
- Subject: Re: [xml] ctxt->token patches
- Date: Mon, 1 Jul 2002 17:57:58 -0400
On Fri, Jun 28, 2002 at 04:49:35PM +0200, Peter Jacobi wrote:
Content-Description: Mail message body
> Hi Daniel,
>
> > Hum, can you tellwhere this occured ?
>
> It seems benefical to test for ctxt->token in front
> of a large list of other "else if" conditionals.
>
> I've attached a step-2 patch which removes all remaining
> ctxt->token uses in parser.c and parserInternals.c (except
> the initializing to 0). htmlparser.c and docbookparser.c will
> be treated in the next patch.
Okay, applied and commited too !
> This second patch eats about 60% of the performance gains
> of the first, but I fully agree that's nonsense to leave voodoo
> statements in the code.
Well, there must be a good reason why the compiler
was generating better code when having extra NOP operations
to do. Problem is that it's not associated to the semantic of the
language :-\
> To proceed further in performance enhancement I need to
> do better profiling and perhaps look for more intrusive
> changes in the parser.
Yup, and again thanks a lot for your work on this !!!
Daniel
--
Daniel Veillard | Red Hat Network https://rhn.redhat.com/
veillard redhat com | libxml GNOME XML XSLT toolkit http://xmlsoft.org/
http://veillard.com/ | Rpmfind RPM search engine http://rpmfind.net/
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