Caching or Speed Enhancing

i installed apc but its not caching anything. added this to the config and nothing seems to be caching but it is working

## Caching#
$config['cache']['frontend'] = 'Core';
$config['cache']['frontendOptions'] = array(
'caching' => true,
'automatic_serialization' => true,
'lifetime' => 10800

$config['cache']['backend'] = 'Apc';


Well-known member
Apache/2.2.14 (Unix) mod_ssl/2.2.14 OpenSSL/0.9.8e-fips-rhel5 mod_auth_passthrough/2.1 mod_bwlimited/1.4 FrontPage/
do you need all that?
fwiw, i find the most dramatic improvement to apache is to simply disable logging, save errors.
in this age of google analytics, theres not much benefit in logging anymore anyway. i think the last time i fired up something like awstats was like... 3 years ago at least.