Munin_plugins is a project mainly written in C and SHELL, it's free.
Munin Plugins for monitoring Thin Server
h2. Thin Memory
A munin plugin to monitor memory size of each individual thin process.
For Linux ONLY. Does not work on OSX, Solaris or BSD, because this script relies on proc filesystem.
!http://frederico-araujo.com/wp-content/munin/thin_memory-week.png!
h2. Thin Threads
A munin plugin for Linux to monitor how many threads per thin process.
For Linux ONLY. Does not work on OSX, Solaris or BSD, because this script relies on proc filesystem.
!http://frederico-araujo.com/wp-content/munin/thin_threads-week.png!
h2. Thin Peak Memory (High Water Mark)
A munin plugin for Linux to monitor the maximum memory size that each individual thin process has reached.
For Linux ONLY. Does not work on OSX, Solaris or BSD, because this script relies on proc filesystem.
!http://frederico-araujo.com/wp-content/munin/thin_peak_memory-week.png!
h2. OpenVZ
A munin plugin to monitor OpenVZ Stats of a VM.
It checks for privvmpages and oomguarpages using /proc/user_beancounters
!http://frederico-araujo.com/wp-content/munin/OpenVZ_Memory_stats.png!