Class: AceMQ::AMQP::Telemetry::Registry::Timing

Inherits:
Object
  • Object
show all
Defined in:
lib/acemq/amqp/telemetry.rb

Overview

What a registry knows about a timing.

Deliberately not percentiles. Computing those needs either every sample kept or a sketch, and a library that quietly did either would be making a decision about this process's memory that belongs to whoever runs it.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(count, sum, min, max) ⇒ Timing

Returns a new instance of Timing.



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# File 'lib/acemq/amqp/telemetry.rb', line 326

def initialize(count, sum, min, max)
  @count = count
  @sum = sum
  @min = min
  @max = max
  freeze
end

Instance Attribute Details

#count ⇒ Object (readonly)

Returns the value of attribute count.



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# File 'lib/acemq/amqp/telemetry.rb', line 324

def count
  @count
end

#max ⇒ Object (readonly)

Returns the value of attribute max.



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# File 'lib/acemq/amqp/telemetry.rb', line 324

def max
  @max
end

#min ⇒ Object (readonly)

Returns the value of attribute min.



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# File 'lib/acemq/amqp/telemetry.rb', line 324

def min
  @min
end

#sum ⇒ Object (readonly)

Returns the value of attribute sum.



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# File 'lib/acemq/amqp/telemetry.rb', line 324

def sum
  @sum
end

Instance Method Details

#==(other) ⇒ Object Also known as: eql? 



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# File 'lib/acemq/amqp/telemetry.rb', line 343

def ==(other) = other.is_a?(Timing) && to_a == other.to_a

#hash ⇒ Object 



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# File 'lib/acemq/amqp/telemetry.rb', line 345

def hash = to_a.hash

#mean ⇒ Object 



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# File 'lib/acemq/amqp/telemetry.rb', line 341

def mean = @count.zero? ? 0.0 : @sum / @count

#plus(value) ⇒ Object

Adds one sample, giving back a new timing rather than changing this one, so a reader holding a timing is holding a number that was true when it read it.



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# File 'lib/acemq/amqp/telemetry.rb', line 337

def plus(value)
  Timing.new(@count + 1, @sum + value, [@min, value].min, [@max, value].max)
end

#to_a ⇒ Object 



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# File 'lib/acemq/amqp/telemetry.rb', line 342

def to_a = [@count, @sum, @min, @max]

#to_s ⇒ Object 



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# File 'lib/acemq/amqp/telemetry.rb', line 346

def to_s = "#{@count} in #{format("%.3f", @sum)}s (mean #{format("%.4f", mean)}s)"