LoadModule passenger_module modules/mod_passenger.so
<IfModule mod_passenger.c>
   PassengerRoot /usr/lib/ruby/gems/1.8/gems/passenger-3.0.11
   PassengerRuby /usr/bin/ruby
   PassengerTempDir /var/run/rubygem-passenger
</IfModule>

PassengerHighPerformance on
PassengerUseGlobalQueue on

PassengerMaxPoolSize 3
PassengerMaxRequests 1000
PassengerPoolIdleTime 1800