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Computer Language Benchmarks Game      [[ Play ]]

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 performance measurements

Each table row shows performance measurements for this Ruby 2.0 program with a particular command-line input value N.

N	CPU secs	Elapsed secs	Memory KB	Code B	≈ CPU Load
500,000	Failed			331

Read the ↓ make, command line, and program output logs to see how this program was run.

Read thread-ring benchmark to see what this program should do.

 notes

ruby 2.0.0p0 (2013-02-24 revision 39474) [x86_64-linux]

 thread-ring Ruby 2.0 program source code

# The Computer Language Benchmarks Game
# http://benchmarksgame.alioth.debian.org
# contributed by Klaus Friedel
#

#require "thread"

THREAD_COUNT = 503

class Receiver
  @next
  @mailbox

  def initialize(name)
    @name = name
    @mailbox = Queue.new
  end

  def next=(n)
    @next = n
  end

  def put(msg)
    @mailbox.push(msg)
  end

  def messageloop
    while true
      hopsRemaining = @mailbox.pop
      if(hopsRemaining == 0)
        print @name, "\n"
        exit(0)
      end
      @next.put(hopsRemaining - 1)
    end
  end
end

##########
#  Main  #
##########
receivers = []
for i in 0..THREAD_COUNT-1
  receivers[i] = Receiver.new(i+1)
  if(i > 0)
    receivers[i-1].next = receivers[i]
  end
end
#close the ring
receivers[THREAD_COUNT-1].next = receivers[0]

# start the threads
for i in 0..THREAD_COUNT-1
  Thread.start(i){|k| receivers[k].messageloop}
end

receivers[0].put(ARGV[0].to_i)

sleep

 make, command-line, and program output logs

Mon, 25 Feb 2013 11:25:40 GMT

COMMAND LINE:
/usr/local/src/ruby-2.0.0-p0/ruby threadring.yarv 500000

PROGRAM FAILED 


PROGRAM OUTPUT:

threadring.yarv:16:in `initialize': uninitialized constant Receiver::Queue (NameError)
	from threadring.yarv:44:in `new'
	from threadring.yarv:44:in `block in <main>'
	from threadring.yarv:43:in `each'
	from threadring.yarv:43:in `<main>'

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