Re: [xml] proposed patch to hash function

[Sander Vesik <Sander Vesik Sun COM>]

On Mon, 17 Jun 2002, Daniel Veillard wrote:

> On Sun, Jun 16, 2002 at 11:02:03PM +0100, Sander Vesik wrote:
> > This is a proposed patch for the hash function in libxml2 - according to
> > my benchmarking, it should give ~ 1 - 2 % of speed advantage. I hoped to
> > also finish teh second stage of the patch, but that is not quite ready for
> > public consumption yet.
>
>   Well, it doesn't seems to change much performance wise for me (I did
> a very limited test), and since it should improve hashing properties
> compared to my minimal checksum, I applied it and commited :-)

The benchmarking I used was:
        a) xmllint --noout --valid --timing --repeat $file
        b) xsltproc --nnout --timing --repeat $style $file

Where the file was the gedit xml manual and the stylesheet was the
gnome-customisations.xsl (which in turn includes & applies the docbook xsl
stylesheets). The metric was the average of 10 consecutive runs.
Unfortunately, the impact of hashing on stylesheet application is less
that what i expected.

If there are other realtively easy to run benchmarks to try (no, XSLTmark
is not in this category) then i can include the data for these aswell in
the future. 

>   thanks,
>
> 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/

        Sander

        you'll rescue me right?
        in the exact same way that they never did
        i'll be happy right?
        when your healing powers kick in