1 /*
   2  * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package jdk.nashorn.internal.performance;
  27 
  28 import java.io.OutputStream;
  29 import java.util.concurrent.Callable;
  30 import java.util.concurrent.ExecutionException;
  31 import java.util.concurrent.Future;
  32 import java.util.concurrent.TimeUnit;
  33 import java.util.concurrent.TimeoutException;
  34 import jdk.nashorn.internal.objects.Global;
  35 import jdk.nashorn.internal.runtime.Context;
  36 import jdk.nashorn.internal.runtime.ScriptFunction;
  37 import jdk.nashorn.internal.runtime.ScriptRuntime;
  38 
  39 @SuppressWarnings("javadoc")
  40 public class PerformanceWrapper extends jdk.nashorn.tools.Shell {
  41 
  42     int _numberOfIterations;
  43     int _runsPerIteration;
  44 
  45     protected void runCompileOnlyTest(final String name, final int numberOfIterations, final int runsPerIteration, final String testURL) throws Throwable {
  46         final String[] args = { name, "--compile-only=true", "-dump-on-error", "--", testURL };
  47 
  48         final long[] times = new long[numberOfIterations + 1];
  49         times[0] = System.nanoTime(); // Calendar.getInstance().getTimeInMillis();
  50 
  51         for (int iteration = 1; iteration <= numberOfIterations; iteration++) {
  52             for (int i = 0; i < runsPerIteration; i++) {
  53                 run(System.in, System.out, System.err, args);
  54             }
  55             times[iteration] = System.nanoTime();
  56         }
  57 
  58         for (int i = 0; i < numberOfIterations; i++) {
  59             System.out.println("Iteration " + (i + 1) + " average time: " + ((times[i + 1] - times[i]) / (float)runsPerIteration) / 1000000.0 + " ms.");
  60         }
  61     }
  62 
  63     protected void runExecuteOnlyTest(final String name, final int numberOfIterations, final int runsPerIteration, final String testURL) throws Throwable {
  64         runExecuteOnlyTest(name, numberOfIterations, runsPerIteration, testURL, System.out, System.err, new String[0]);
  65     }
  66 
  67     protected void runExecuteOnlyTest(final String name, final int numberOfIterations, final int runsPerIteration, final String testURL, final OutputStream out, final OutputStream err) throws Throwable {
  68         runExecuteOnlyTest(name, numberOfIterations, runsPerIteration, testURL, out, err, new String[0]);
  69     }
  70 
  71 
  72     protected void runExecuteOnlyTest(final String name, final int numberOfIterations, final int runsPerIteration, final String testURL, final OutputStream out, final OutputStream err, final String[] newargs) throws Throwable {
  73         final String[] args=new String[newargs.length+1];
  74         System.arraycopy(newargs, 0, args, 1, newargs.length);
  75         args[0]=name;
  76 
  77 //      for (String s: args)
  78 //          System.out.println(s);
  79 
  80         _numberOfIterations = numberOfIterations;
  81         _runsPerIteration = runsPerIteration;
  82         run(System.in, out, err, args);
  83 //      System.out.println("overridableRun finished");
  84     }
  85 
  86     @Override
  87     protected Object apply(final ScriptFunction target, final Object self) {
  88         if (_runsPerIteration == 0 && _numberOfIterations == 0) {
  89             final Global global = jdk.nashorn.internal.runtime.Context.getGlobal();
  90             final ScriptFunction _target = target;
  91             final Object _self = self;
  92 
  93             class MyThread implements Callable<Object> {
  94                 @Override
  95                 public Object call() {
  96                     Context.setGlobal(global);
  97                     //just execute and return script is sufficient
  98                     final Object scriptRuntimeApplyResult = ScriptRuntime.apply(_target, _self);
  99                     return scriptRuntimeApplyResult;
 100                 }
 101             }
 102 
 103             final java.util.concurrent.ThreadPoolExecutor executor = new java.util.concurrent.ThreadPoolExecutor(1, 1, 1, TimeUnit.MINUTES, new java.util.concurrent.ArrayBlockingQueue<Runnable>(10));
 104             final MyThread myThread = new MyThread();
 105             // executor.execute(myThread);
 106             Object result;
 107             Future<?> futureResult = null;
 108 
 109             try {
 110                 futureResult = executor.submit(myThread);
 111                 final String timeout = System.getProperty("timeout.value");
 112                 int tmout = 0;
 113                 if (timeout != null) {
 114                     try {
 115                         tmout = Integer.parseInt(timeout);
 116                     } catch (final Exception e) {
 117                         e.printStackTrace();
 118                     }
 119                 }
 120                 if (tmout != 0) {
 121                     result = futureResult.get(10, TimeUnit.MINUTES);
 122                 } else {
 123                     result = futureResult.get();
 124                 }
 125             } catch (final InterruptedException | ExecutionException e) {
 126                 e.printStackTrace();
 127                 return null;
 128             } catch (final TimeoutException e) {
 129                 System.out.println("timeout while script execution");
 130                 futureResult.cancel(true);
 131                 return null;
 132             }
 133 
 134             return result;
 135         }
 136 
 137         final long[] times = new long[_numberOfIterations + 1];
 138         times[0] = System.nanoTime();
 139         for (int iteration = 1; iteration <= _numberOfIterations; iteration++) {
 140             for (int i = 0; i < _runsPerIteration; i++) {
 141                 // empty
 142             }
 143             times[iteration] = System.nanoTime();
 144         }
 145 
 146         for (int i = 0; i < _numberOfIterations; i++) {
 147             System.out.println("Iteration " + (i + 1) + " average time: " + ((times[i + 1] - times[i]) / (float)_runsPerIteration) / 1000000.0 + " ms.");
 148         }
 149 
 150         return ScriptRuntime.apply(target, self);
 151     }
 152 }