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.runtime.Context;
  35 import jdk.nashorn.internal.runtime.ScriptFunction;
  36 import jdk.nashorn.internal.runtime.ScriptObject;
  37 import jdk.nashorn.internal.runtime.ScriptRuntime;
  38 
  39 /**
  40  *
  41  * @author Pavel Stepanov
  42  */
  43 public class PerformanceWrapper extends jdk.nashorn.tools.Shell {
  44 
  45     int _numberOfIterations;
  46     int _runsPerIteration;
  47 
  48     protected void runCompileOnlyTest(final String name, final int numberOfIterations, final int runsPerIteration, final String testURL) throws Throwable {
  49         final String[] args = { name, "--compile-only=true", "-dump-on-error", "--", testURL };
  50 
  51         final long[] times = new long[numberOfIterations + 1];
  52         times[0] = System.nanoTime(); // Calendar.getInstance().getTimeInMillis();
  53 
  54         for (int iteration = 1; iteration <= numberOfIterations; iteration++) {
  55             for (int i = 0; i < runsPerIteration; i++) {
  56                 run(System.in, System.out, System.err, args);
  57             }
  58             times[iteration] = System.nanoTime();
  59         }
  60 
  61         for (int i = 0; i < numberOfIterations; i++) {
  62             System.out.println("Iteration " + (i + 1) + " average time: " + ((times[i + 1] - times[i]) / (float)runsPerIteration) / 1000000.0 + " ms.");
  63         }
  64     }
  65 
  66     protected void runExecuteOnlyTest(final String name, final int numberOfIterations, final int runsPerIteration, final String testURL) throws Throwable {
  67         runExecuteOnlyTest(name, numberOfIterations, runsPerIteration, testURL, System.out, System.err, new String[0]);
  68     }
  69 
  70     protected void runExecuteOnlyTest(final String name, final int numberOfIterations, final int runsPerIteration, final String testURL, final OutputStream out, final OutputStream err) throws Throwable {
  71         runExecuteOnlyTest(name, numberOfIterations, runsPerIteration, testURL, out, err, new String[0]);
  72     }
  73 
  74 
  75     protected void runExecuteOnlyTest(final String name, final int numberOfIterations, final int runsPerIteration, final String testURL, final OutputStream out, final OutputStream err, String[] newargs) throws Throwable {
  76         String[] args=new String[newargs.length+1];
  77         System.arraycopy(newargs, 0, args, 1, newargs.length);
  78         args[0]=name;
  79 
  80 //      for (String s: args)
  81 //          System.out.println(s);
  82 
  83         _numberOfIterations = numberOfIterations;
  84         _runsPerIteration = runsPerIteration;
  85         run(System.in, out, err, args);
  86 //      System.out.println("overridableRun finished");
  87     }
  88 
  89     @Override
  90     protected Object apply(final ScriptFunction target, final Object self) {
  91         if (_runsPerIteration == 0 && _numberOfIterations == 0) {
  92             final ScriptObject global = jdk.nashorn.internal.runtime.Context.getGlobal();
  93             final ScriptFunction _target = target;
  94             final Object _self = self;
  95 
  96             class MyThread implements Callable<Object> {
  97                 @Override
  98                 public Object call() {
  99                     Context.setGlobal(global);
 100                     //just execute and return script is sufficient
 101                     final Object scriptRuntimeApplyResult = ScriptRuntime.apply(_target, _self);
 102                     return scriptRuntimeApplyResult;
 103                 }
 104             }
 105 
 106             final java.util.concurrent.ThreadPoolExecutor executor = new java.util.concurrent.ThreadPoolExecutor(1, 1, 1, TimeUnit.MINUTES, new java.util.concurrent.ArrayBlockingQueue<Runnable>(10));
 107             final MyThread myThread = new MyThread();
 108             // executor.execute(myThread);
 109             Object result;
 110             Future<?> futureResult = null;
 111 
 112             try {
 113                 futureResult = executor.submit(myThread);
 114                 final String timeout = System.getProperty("timeout.value");
 115                 int tmout = 0;
 116                 if (timeout != null) {
 117                     try {
 118                         tmout = Integer.parseInt(timeout);
 119                     } catch (final Exception e) {
 120                         e.printStackTrace();
 121                     }
 122                 }
 123                 if (tmout != 0) {
 124                     result = futureResult.get(10, TimeUnit.MINUTES);
 125                 } else {
 126                     result = futureResult.get();
 127                 }
 128             } catch (final InterruptedException | ExecutionException e) {
 129                 e.printStackTrace();
 130                 return null;
 131             } catch (final TimeoutException e) {
 132                 System.out.println("timeout while script execution");
 133                 futureResult.cancel(true);
 134                 return null;
 135             }
 136 
 137             return result;
 138         }
 139 
 140         final long[] times = new long[_numberOfIterations + 1];
 141         times[0] = System.nanoTime();
 142         for (int iteration = 1; iteration <= _numberOfIterations; iteration++) {
 143             for (int i = 0; i < _runsPerIteration; i++) {
 144                 // empty
 145             }
 146             times[iteration] = System.nanoTime();
 147         }
 148 
 149         for (int i = 0; i < _numberOfIterations; i++) {
 150             System.out.println("Iteration " + (i + 1) + " average time: " + ((times[i + 1] - times[i]) / (float)_runsPerIteration) / 1000000.0 + " ms.");
 151         }
 152 
 153         return ScriptRuntime.apply(target, self);
 154     }
 155 }