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
500,000Failed  342   

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 9.0.0.0.pre1 (2.2.0p0) 2015-01-20 d537cab Java HotSpot(TM) Server VM 25.25-b02 on 1.8.0_25-b17 +jit [linux-i386]

 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

Fri, 23 Jan 2015 03:47:51 GMT

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

COMMAND LINE:
/usr/local/src/jruby-9.0.0.0.pre1/bin/jruby -Xcompile.invokedynamic=true -J-server -J-Xmn512m -J-Xms2048m -J-Xmx2048m threadring.rb 500000

PROGRAM FAILED 


PROGRAM OUTPUT:

ThreadError: unable to create new native thread
                                 initialize at org/jruby/RubyThread.java:552
                                      start at org/jruby/RubyThread.java:521
  threadring.rb_FOR_LOOP_2__threadring.rb_1 at threadring.rb:54
                                       each at org/jruby/RubyRange.java:451
                                 __script__ at threadring.rb:53

Revised BSD license

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