Redmine első betöltésének gyorsítása

/etc/apache2/sites-enabled/@redmine

# Speeds up spawn time tremendously -- if your app is compatible.
# RMagick seems to be incompatible with smart spawning
RailsSpawnMethod smart

# Keep the application instances alive longer. Default is 300 (seconds)
PassengerPoolIdleTime 1000

# Keep the spawners alive, which speeds up spawning a new Application
# listener after a period of inactivity at the expense of memory.
RailsAppSpawnerIdleTime 0

# Additionally keep a copy of the Rails framework in memory. If you're
# using multiple apps on the same version of Rails, this will speed up
# the creation of new RailsAppSpawners. This isn't necessary if you're
# only running one or 2 applications, or if your applications use
# different versions of Rails.
RailsFrameworkSpawnerIdleTime 0

# Just in case you're leaking memory, restart a listener
# after processing 5000 requests
PassengerMaxRequests 5000

# only check for restart.txt et al up to once every 5 seconds,
# instead of once per processed request
PassengerStatThrottleRate 5

Forrás: http://stackoverflow.com/questions/853532/slow-initial-server-startup-when-using-phusion-passenger-and-rails