Class: Tryouts::Drill::Sergeant::Benchmark

Inherits:
Object
  • Object
show all
Defined in:
lib/tryouts/drill/sergeant/benchmark.rb

Overview

Benchmark

The sergeant responsible for running benchmarks

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(reps = nil) ⇒ Benchmark

  • reps Number of times to execute drill (>= 0, <= 1000000). Default: 3



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# File 'lib/tryouts/drill/sergeant/benchmark.rb', line 18

def initialize(reps=nil)
  @reps = (1..1000000).include?(reps) ? reps : 5
  @stats = Tryouts::Stats.new
end

Instance Attribute Details

#output ⇒ Object (readonly)

Returns the value of attribute output.



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# File 'lib/tryouts/drill/sergeant/benchmark.rb', line 14

def output
  @output
end

Instance Method Details

#run(block, context, &inline) ⇒ Object 



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# File 'lib/tryouts/drill/sergeant/benchmark.rb', line 23

def run(block, context, &inline)
  # A Proc object takes precedence over an inline block. 
  runtime = (block.nil? ? inline : block)
  response = Tryouts::Drill::Reality.new
  
  if runtime.nil?
    raise "We need a block to benchmark"
  else
    begin
      
      @reps.times do
        run = ::Benchmark.realtime {
          context.instance_eval &runtime
        }
        @stats.sample run
      end
      
      # We add the output after we run the block so that
      # that it'll remain nil if an exception was raised
      response.output = @stats
      
    rescue => e
      puts e.message, e.backtrace if Tryouts.verbose > 2
      response.etype = e.class
      response.error = e.message
      response.trace = e.backtrace
    end
  end
  response
end