How can I check if mod_perl is working on my apache server on debian

Hello everybody,

We are trying to improve the performance of our foswiki server. But I think mod_perl on our Apache2 on Debian isn't working.

I have installed the following software components:

Debian packet libapache2-mod-perl2
Foswiki extension ModPerlEngineContrib

I have added the following lines to our apache VirtualHost configuration:

PerlSwitches -wT
PerlRequire "/var/www/foswiki/tools/mod_perl_startup.pl"

when I execute ps --user www-data on the shell right after opening or editing a topic, there are of course a few apache2 processes shown and processes like "view" and "edit". I think this is a sign, that mod_perl isn't working.

In the foswiki configuration => Web server environment => mod_perl is following text shown:

Not used for this script (correct). mod_perl may be enabled for the other scripts. You can check this by visiting System.WebHome in your wiki.
mod_perl is not loaded into Apache

I have read somewhere, that the configuration script has to be excluded from loading with mod_perl. But where can I check, if mod_perl is working in the System.WebHome? Should there the following string change to another value?

This site is running Foswiki version v1.1.6, Release Foswiki-1.1.6, Plugin API version 2.2

What should I do next?

-- KlausReithmaier - 18 Feb 2013