Class: PSI::Metrics

Inherits:
Object
  • Object
show all
Defined in:
lib/psi/reading.rb

Overview

Pressure averages and the cumulative stall time for one PSI category.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(averages:, total:) ⇒ Metrics

Returns a new instance of Metrics.



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# File 'lib/psi/reading.rb', line 8

def initialize(averages:, total:)
  @averages = averages.freeze
  @total = total
end

Instance Attribute Details

#total ⇒ Object (readonly)

Returns the value of attribute total.



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# File 'lib/psi/reading.rb', line 6

def total
  @total
end

Instance Method Details

#avg(seconds) ⇒ Float?

Returns the rolling average for a window in seconds.

Parameters:

  • seconds (Integer)

Returns:

  • (Float, nil) 


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# File 'lib/psi/reading.rb', line 16

def avg(seconds)
  @averages[Integer(seconds)]
end

#avg10 ⇒ Float?

Returns ten-second average.

Returns:

  • (Float, nil) —

    ten-second average



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# File 'lib/psi/reading.rb', line 21

def avg10 = avg(10)
# @return [Float, nil] sixty-second average

#avg300 ⇒ Float?

Returns three-hundred-second average.

Returns:

  • (Float, nil) —

    three-hundred-second average



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# File 'lib/psi/reading.rb', line 25

def avg300 = avg(300)

#avg60 ⇒ Float?

Returns sixty-second average.

Returns:

  • (Float, nil) —

    sixty-second average



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# File 'lib/psi/reading.rb', line 23

def avg60 = avg(60)
# @return [Float, nil] three-hundred-second average

#to_h ⇒ Hash

Converts dynamic averages and total time to a hash.

Returns:

  • (Hash) 


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# File 'lib/psi/reading.rb', line 29

def to_h
  @averages.sort.to_h { |seconds, value| [:"avg#{seconds}", value] }.merge(total: total)
end