Class: Pwrake::RankStat

Inherits:
Object
  • Object
show all
Defined in:
lib/pwrake/task/task_rank.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ RankStat

Returns a new instance of RankStat.



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# File 'lib/pwrake/task/task_rank.rb', line 5

def initialize
  @lock = Mutex.new
  @stat = []
end

Instance Method Details

#add_sample(rank, elap) ⇒ Object 



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# File 'lib/pwrake/task/task_rank.rb', line 10

def add_sample(rank,elap)
  @lock.synchronize do
    stat = @stat[rank]
    if stat.nil?
      @stat[rank] = stat = [0,0.0]
    end
    stat[0] += 1
    stat[1] += elap
    #Log.debug "add_sample rank=#{rank} stat=#{stat.inspect} weight=#{stat[0]/stat[1]}"
  end
end

#rank_weight ⇒ Object 



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# File 'lib/pwrake/task/task_rank.rb', line 22

def rank_weight
  @lock.synchronize do
    sum = 0.0
    count = 0
    weight = @stat.map do |stat|
      if stat
        w = stat[0]/stat[1]
        sum += w
        count += 1
        w
      else
        nil
      end
    end
    if count == 0
      avg = 1.0
    else
      avg = sum/count
    end
    [weight, avg]
  end
end