How to use

Profiler

in

org.apache.isis.core.runtime.profiler

public String log() {
  return id + DELIMITER + thread + DELIMITER + getName() + DELIMITER + getMemoryUsage() + DELIMITER + getElapsedTime();
}

public void reset() {
  elapsedTime = 0;
  start = time();
  memory = memory();
}

public void testContinueWithStartAndStopPausesTiming() {
  profiler.start();
  profiler.stop();
  profiler.start();
  profiler.stop();
  assertEquals(400, profiler.getElapsedTime());
}

public void testResetAfterStopResetsToZero() {
  profiler.start();
  profiler.stop();
  profiler.reset();
  assertEquals(0, profiler.getElapsedTime());
  profiler.start();
  profiler.stop();
  assertEquals(400, profiler.getElapsedTime());
}

public void testResetDuringTiming() {
  profiler.start();
  profiler.reset();
  assertEquals(200, profiler.getElapsedTime());
}

public void testTimingLog() {
  profiler.start();
  profiler.stop();
  assertEquals("0.1 secs", profiler.timeLog());
}

@Override
public String toString() {
  return getElapsedTime() + "ms - " + name;
}

public void testRepeatedElapseTimeGivesLatestTime() {
  profiler.start();
  assertEquals(100, profiler.getElapsedTime());
  assertEquals(300, profiler.getElapsedTime());
  assertEquals(600, profiler.getElapsedTime());
}

public String memoryUsageLog() {
  return INTEGER_FORMAT.format(getMemoryUsage()) + " bytes";
}

@Override
public void setUp() {
  Profiler.setProfilerSystem(new ProfilerTestSystem());
  profiler = new Profiler("name");
}

public long getMemoryUsage() {
  return memory() - memory;
}

public void testFreeMemory() {
  assertEquals("20,300 bytes", Profiler.memoryLog());
}

public void testMemoryUsageLog() {
  assertEquals("10,300 bytes", profiler.memoryUsageLog());
}

public void testTiming() {
  profiler.start();
  profiler.stop();
  assertEquals(100, profiler.getElapsedTime());
}

public String timeLog() {
  return FLOAT_FORMAT.format(getElapsedTime() / 1000.0) + " secs";
}

public void testMemoryUsage() {
  assertEquals(10300, profiler.getMemoryUsage());
  assertEquals(20000, profiler.getMemoryUsage());
}

public static String memoryLog() {
  final long free = memory();
  return INTEGER_FORMAT.format(free) + " bytes";
}

public void testRepeatedElapseTimeAfterStopGivesSameTime() {
  profiler.start();
  profiler.stop();
  assertEquals(100, profiler.getElapsedTime());
  assertEquals(100, profiler.getElapsedTime());
  assertEquals(100, profiler.getElapsedTime());
}

public void testZero() {
  assertEquals(0, profiler.getElapsedTime());
}

public Profiler(final String name) {
  this.name = name;
  synchronized (Profiler.class) {
    this.id = nextId++;
  }
  final Thread t = Thread.currentThread();
  final String thread = threads.get(t);
  if (thread != null) {
    this.thread = thread;
  } else {
    this.thread = "t" + nextThread++;
    threads.put(t, this.thread);
  }
  memory = memory();
}