Class God::Conditions::CpuUsage
In: lib/god/conditions/cpu_usage.rb
Parent: PollCondition

Condition Symbol :cpu_usage Type: Poll

Trigger when the percent of CPU use of a process is above a specified limit. On multi-core systems, this number could conceivably be above 100.

Paramaters

  Required
    +pid_file+ is the pid file of the process in question. Automatically
               populated for Watches.
    +above+ is the percent CPU above which to trigger the condition. You
            may use #percent to clarify this amount (see examples).

Examples

Trigger if the process is using more than 25 percent of the cpu (from a Watch):

  on.condition(:cpu_usage) do |c|
    c.above = 25.percent
  end

Non-Watch Tasks must specify a PID file:

  on.condition(:cpu_usage) do |c|
    c.above = 25.percent
    c.pid_file = "/var/run/mongrel.3000.pid"
  end

Methods

new   prepare   reset   test   valid?  

Attributes

above  [RW] 
times  [RW] 

Public Class methods

Public Instance methods

[Validate]