bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/compilation/CompilationTimer.java

   1 package org.simantics.scl.compiler.compilation;
   2
   3 import java.util.ArrayList;
   4
   5 import gnu.trove.map.hash.TObjectLongHashMap;
   6
   7 public class CompilationTimer {
   8     private long initialTime, previousTime;
   9     private ArrayList<TimerEntry> entries = new ArrayList<TimerEntry>();
  10     private static TObjectLongHashMap<String> GLOBAL_TIMES = new TObjectLongHashMap<String>();
  11
  12     private static class TimerEntry {
  13         public final String phaseName;
  14         public final long time;
  15         public final long cumulativeTime;
  16
  17         public TimerEntry(String phaseName, long time, long cumulativeTime) {
  18             this.phaseName = phaseName;
  19             this.time = time;
  20             this.cumulativeTime = cumulativeTime;
  21         }
  22     }
  23
  24     public CompilationTimer() {
  25         initialTime = previousTime = System.nanoTime();
  26     }
  27
  28     public void phaseFinished(String phaseName) {
  29         long time = System.nanoTime();
  30         entries.add(new TimerEntry(phaseName, time-previousTime, time-initialTime));
  31         previousTime = time;
  32     }
  33
  34     public void suspendTimer() {
  35         long time = System.nanoTime();
  36         initialTime -= time;
  37         previousTime -= time;
  38     }
  39
  40     public void continueTimer() {
  41         long time = System.nanoTime();
  42         initialTime += time;
  43         previousTime += time;
  44     }
  45
  46     public void report(String moduleName) {
  47         synchronized(GLOBAL_TIMES) {
  48             System.out.println(moduleName);
  49             for(TimerEntry entry : entries) {
  50                 long globalTime = GLOBAL_TIMES.adjustOrPutValue(entry.phaseName, entry.time, entry.time);
  51                 System.out.println("    " + entry.phaseName + " " + entry.time*1e-6
  52                         + "ms (cumulative: " + entry.cumulativeTime*1e-6 + "ms, global: " + globalTime*1e-6 + ")");
  53             }
  54         }
  55     }
  56 }