According to Rasmus Lerdorf:
> > I have a site running Apache-1.3.6, PHP-3.0.9, mod_perl-1.20 on Solaris with
> > a Sybase Database. And it has some performance flaws. This site has
> > thousands of hits per day (not sure of how many, though) and it should be
> > faster (few images, no animations whatsoever).
> >
> > Can anybody tell me what could be done here? EmbPerl instead of PHP?
> > mod_perl/apache tuning? Should database access be done through PHP or
> > mod_perl? When should I use PHP? and mod_perl? do I need both?
>
> Well, which one are you using for talking to Sybase with? Choosing one or
> the other would reduce your memory requirements a bit. Performance-wise
> they really are quite similar. Choosing one over the other is more of a
> personal preference thing.
If the hits are coming over the internet, you could reduce memory
usage with a lightweight front-end apache proxying to your
heavyweight backends. The front end can deliver any static
content directly. If you currently have both mod_perl and php
scripts, you could try serving from separate backend servers
each with only one interpreter included running on different ports.
The front end can use RewriteRules with the [p] flag to transparently
pass requests to the right server. The mod_perl connections to
Sybase should be using Apache::DBI if possible.
Les Mikesell
[EMAIL PROTECTED]
