src/org/lttng/ust/tests/Benchmark.java

   1 package org.lttng.ust.tests;
   2
   3 import java.io.IOException;
   4 import java.util.logging.FileHandler;
   5 import java.util.logging.Level;
   6 import java.util.logging.Logger;
   7 import java.util.logging.SimpleFormatter;
   8
   9 import org.lttng.ust.LTTngUst;
  10
  11 public class Benchmark {
  12
  13     private static final int NB_RUNS = 5;
  14     private static final int NB_THREADS = 2;
  15
  16     /**
  17      * @param args
  18      * @throws IOException
  19      * @throws SecurityException
  20      */
  21     public static void main(String[] args) throws SecurityException,
  22             IOException {
  23         Runner runner;
  24         long start, end, average, total = 0;
  25
  26         final Logger log;
  27         final FileHandler fh;
  28
  29         /* Set up the logger */
  30         log = Logger.getLogger("Test logger");
  31         log.setUseParentHandlers(false);
  32         fh = new FileHandler("/tmp/log", false);
  33         fh.setFormatter(new SimpleFormatter());
  34         // log.addHandler(fh);
  35         log.setLevel(Level.ALL);
  36
  37         /* Set up the tracer */
  38         LTTngUst.init();
  39         System.out.println("Press a key to start.");
  40         System.in.read();
  41
  42         for (int i = 0; i < NB_RUNS; i++) {
  43             runner = new Runner(NB_THREADS, log);
  44
  45             start = System.nanoTime();
  46             runner.run();
  47             end = System.nanoTime();
  48
  49             total += (end - start);
  50         }
  51         average = total / NB_RUNS;
  52         System.out.println("Average = " + average / 1000000 + " ms");
  53     }
  54
  55 }