Ubuntu : Intel® Q6600® one core
Computer Language Benchmarks Game      [[ Play ]]

- all benchmarks - n-body fannkuch-redux meteor-contest fasta fasta-redux spectral-norm reverse-complement mandelbrot k-nucleotide regex-dna pidigits chameneos-redux thread-ring binary-trees-redux binary-trees - all languages - Ada 2005 GNAT ATS C CINT C gcc Clojure C# Mono C++ g++ Dart Erlang HiPE F# Mono Fortran Intel Go Haskell GHC Java 7 JavaScript V8 Lisp SBCL Lua OCaml Pascal Free Pascal Perl PHP Python 3 Racket Ruby 2.0 Ruby JRuby Scala Smalltalk VisualWorks x86 one core x64 quad-core x86 quad-core x64 one core

 performance measurements

Each table row shows performance measurements for this Java 7 program with a particular command-line input value N.

N	CPU secs	Elapsed secs	Memory KB	Code B	≈ CPU Load
500,000	0.76	0.78	21,000	432	0% 0% 3% 99%
5,000,000	3.68	3.68	48,300	432	1% 1% 1% 100%
50,000,000	18.11	18.13	133,192	432	1% 0% 0% 100%

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

java version "1.7.0_11"
Java(TM) SE Runtime Environment (build 1.7.0_11-b21)
Java HotSpot(TM) Server VM (build 23.6-b04, mixed mode)

 thread-ring Java 7 #5 program source code

/**
 * The Computer Language Benchmarks Game
 * http://benchmarksgame.alioth.debian.org/
 * contributed by Birju Prajapati
 */

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

public class threadring {

    private static final int TOTAL_NODES = 503;
    private static final ExecutorService EXECUTOR = Executors.newFixedThreadPool(TOTAL_NODES);
    
    private static Node firstNode;
    private static Node lastNode;

    public static void main(String[] args) {
        firstNode = new Node(1);
        lastNode.next = firstNode;
        firstNode.push(Integer.parseInt(args[0]));
    }

    private static class Node implements Runnable {

        private final int id;
        private Node next;
        private int token;

        public Node(int id) {
            this.id = id;
            if (id++ == TOTAL_NODES) {
                lastNode = this;
            } else {
                next = new Node(id);
            }
        }

        private void push(int token) {
            this.token = token;
            EXECUTOR.execute(this);
        }

        public void run() {
            if (token-- != 0) {
                next.push(token);
            } else {
                System.out.println(id);
                System.exit(0);
            }
            
        }
    }
}

 make, command-line, and program output logs

Mon, 21 Jan 2013 08:45:54 GMT

MAKE:
mv threadring.java-5.java threadring.java
/usr/local/src/jdk1.7.0_11/bin/javac threadring.java
0.52s to complete and log all make actions

COMMAND LINE:
/usr/local/src/jdk1.7.0_11/bin/java  -server -XX:+TieredCompilation -XX:+AggressiveOpts threadring 50000000

PROGRAM OUTPUT:
292

  Home   Conclusions   License   Play