Class: AppProfiler::Sampler::StackprofConfig

Inherits:
Object
  • Object
show all
Defined in:
lib/app_profiler/sampler/stackprof_config.rb

Constant Summary collapse

WALL_INTERVAL =

Default values

5000
CPU_INTERVAL = 
5000
OBJECT_INTERVAL = 
1000
WALL_MODE_PROBABILITY = 
0.8
CPU_MODE_PROBABILITY = 
0.1
OBJECT_MODE_PROBABILITY = 
0.1

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(wall_interval: WALL_INTERVAL, cpu_interval: CPU_INTERVAL, object_interval: OBJECT_INTERVAL, wall_mode_probability: WALL_MODE_PROBABILITY, cpu_mode_probability: CPU_MODE_PROBABILITY, object_mode_probability: OBJECT_MODE_PROBABILITY) ⇒ StackprofConfig

Returns a new instance of StackprofConfig.



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# File 'lib/app_profiler/sampler/stackprof_config.rb', line 17

def initialize(
  wall_interval: WALL_INTERVAL,
  cpu_interval: CPU_INTERVAL,
  object_interval: OBJECT_INTERVAL,
  wall_mode_probability: WALL_MODE_PROBABILITY,
  cpu_mode_probability: CPU_MODE_PROBABILITY,
  object_mode_probability: OBJECT_MODE_PROBABILITY
)
  if wall_mode_probability + cpu_mode_probability + object_mode_probability != 1.0
    raise ArgumentError, "mode probabilities must sum to 1"
  end

  @modes_probability = {}
  @modes_interval = {}

  AppProfiler::Backend::StackprofBackend::AVAILABLE_MODES.each do |mode|
    case mode
    when :wall
      @modes_probability[mode] = wall_mode_probability
      @modes_interval[mode] = wall_interval
    when :cpu
      @modes_probability[mode] = cpu_mode_probability
      @modes_interval[mode] = cpu_interval
    when :object
      @modes_probability[mode] = object_mode_probability
      @modes_interval[mode] = object_interval
    end
  end
end

Instance Attribute Details

#modes_probability ⇒ Object (readonly)

Returns the value of attribute modes_probability.



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# File 'lib/app_profiler/sampler/stackprof_config.rb', line 6

def modes_probability
  @modes_probability
end

Instance Method Details

#interval_for(mode) ⇒ Object 



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# File 'lib/app_profiler/sampler/stackprof_config.rb', line 47

def interval_for(mode)
  @modes_interval[mode]
end