Little addition to phpfpm ondemand

php-fpm in ondemand mode keeps php process as long alive as set in php_fpm_idle_timeout

On my server this works very well, as I do have a bunch of low traffic hosts and I´ve set startup_servers to 0
When a visitor enters the site one ore more php processes are started and kept alive for 5 minutes. 
Results in good browsing experience and low memory footprint. Better than starting up for every hit on the page and better than having a bunch of idle php processes, one for each vhost.

tilman19 <tilman@3c7.de>