x64 Ubuntu : Intel® Q6600® quad-core
Computer Language Benchmarks Game      [[ Play ]]

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 performance measurements

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

N	CPU secs	Elapsed secs	Memory KB	Code B	≈ CPU Load
500,000	13.08	9.41	111,684	342	23% 39% 43% 31%
5,000,000	68.72	52.69	401,376	342	36% 36% 24% 24%
50,000,000	622.56	471.23	574,068	342	4% 4% 58% 57%

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

jruby 1.7.3 (1.9.3p385) 2013-02-21 dac429b on Java HotSpot(TM) 64-Bit Server VM 1.7.0_11-b21 [linux-amd64]

 thread-ring Ruby JRuby 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

Sat, 20 Apr 2013 00:42:07 GMT

MAKE:
mv threadring.jruby threadring.rb
0.01s to complete and log all make actions

COMMAND LINE:
/usr/local/src/jruby-1.7.3/bin/jruby -Xcompile.invokedynamic=true -J-server -J-Xmn512m -J-Xms2048m -J-Xmx2048m threadring.rb 50000000

PROGRAM OUTPUT:
292

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