Class: Barnes::Instruments::Ruby18GC

Inherits:
Object
  • Object
show all
Defined in:
lib/barnes/instruments/ree_gc.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Ruby18GC

Returns a new instance of Ruby18GC.



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# File 'lib/barnes/instruments/ree_gc.rb', line 27

def initialize
  GC.enable_stats
end

Instance Method Details

#instrument!(state, counters, gauges) ⇒ Object 



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# File 'lib/barnes/instruments/ree_gc.rb', line 35

def instrument!(state, counters, gauges)
  last = state[:ruby18_gc]
  cur = state[:ruby18_gc] = current

  counters.update \
    :'GC.count'             => cur[:gc_count] - before[:gc_count],
    :'GC.time'              => cur[:gc_time] - before[:gc_time],
    :'GC.memory'            => cur[:gc_memory] - before[:gc_memory],
    :'GC.allocated_objects' => cur[:objects] - before[:objects]

  gauges[:'Objects.live'] = ObjectSpace.live_objects
  gauges[:'GC.growth'] = GC.growth
end

#start!(state) ⇒ Object 



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# File 'lib/barnes/instruments/ree_gc.rb', line 31

def start!(state)
  state[:ruby18_gc] = current
end