@AfterClass
public static void tearDownAfterClass() throws IOException {
clientAssetTree.close();
serverEndpoint.close();
serverAssetTree.close();
TcpChannelHub.closeAllHubs();
TCPRegistry.reset();
}
/**
* Tests the performance of an event listener on the map for Update events of 2 MB strings. Expect
* it to handle at least 50 2 MB updates per second.
*/
@Test
public void testSubscriptionMapEventListenerUpdatePerformance() {
_testMap.clear();
// Put values before testing as we want to ignore the insert events
Function<Integer, Object> putFunction =
a -> _testMap.put(TestUtils.getKey(_mapName, a), _twoMbTestString);
IntStream.range(0, _noOfPuts)
.forEach(
i -> {
putFunction.apply(i);
});
Jvm.pause(100);
// Create subscriber and register
TestChronicleMapEventListener mapEventListener =
new TestChronicleMapEventListener(_mapName, _twoMbTestStringLength);
Subscriber<MapEvent> mapEventSubscriber = e -> e.apply(mapEventListener);
clientAssetTree.registerSubscriber(
_mapName + "?bootstrap=false", MapEvent.class, mapEventSubscriber);
KVSSubscription subscription =
(KVSSubscription) serverAssetTree.getAsset(_mapName).subscription(false);
waitFor(() -> subscription.entrySubscriberCount() == 1);
Assert.assertEquals(1, subscription.entrySubscriberCount());
// Perform test a number of times to allow the JVM to warm up, but verify runtime against
// average
TestUtils.runMultipleTimesAndVerifyAvgRuntime(
i -> {
if (i > 0) {
waitFor(() -> mapEventListener.getNoOfUpdateEvents().get() >= _noOfPuts);
// Test that the correct number of events were triggered on event listener
Assert.assertEquals(_noOfPuts, mapEventListener.getNoOfUpdateEvents().get());
}
Assert.assertEquals(0, mapEventListener.getNoOfInsertEvents().get());
Assert.assertEquals(0, mapEventListener.getNoOfRemoveEvents().get());
mapEventListener.resetCounters();
},
() -> {
IntStream.range(0, _noOfPuts)
.forEach(
i -> {
putFunction.apply(i);
});
},
_noOfRunsToAverage,
3 * _secondInNanos);
clientAssetTree.unregisterSubscriber(_mapName, mapEventSubscriber);
waitFor(() -> subscription.entrySubscriberCount() == 0);
Assert.assertEquals(0, subscription.entrySubscriberCount());
}
/**
* Tests the performance of an event listener on the map for Insert events of 2 MB strings. Expect
* it to handle at least 50 2 MB updates per second.
*/
@Test
public void testSubscriptionMapEventListenerInsertPerformance() {
_testMap.clear();
YamlLogging.setAll(true);
// Create subscriber and register
TestChronicleMapEventListener mapEventListener =
new TestChronicleMapEventListener(_mapName, _twoMbTestStringLength);
Subscriber<MapEvent> mapEventSubscriber = e -> e.apply(mapEventListener);
clientAssetTree.registerSubscriber(_mapName, MapEvent.class, mapEventSubscriber);
Jvm.pause(100);
KVSSubscription subscription =
(KVSSubscription) serverAssetTree.getAsset(_mapName).subscription(false);
Assert.assertEquals(1, subscription.entrySubscriberCount());
// Perform test a number of times to allow the JVM to warm up, but verify runtime against
// average
TestUtils.runMultipleTimesAndVerifyAvgRuntime(
i -> {
if (i > 0) {
waitFor(() -> mapEventListener.getNoOfInsertEvents().get() >= _noOfPuts);
Assert.assertEquals(_noOfPuts, mapEventListener.getNoOfInsertEvents().get());
}
// Test that the correct number of events were triggered on event listener
Assert.assertEquals(0, mapEventListener.getNoOfRemoveEvents().get());
Assert.assertEquals(0, mapEventListener.getNoOfUpdateEvents().get());
_testMap.clear();
mapEventListener.resetCounters();
},
() -> {
IntStream.range(0, _noOfPuts)
.forEach(
i -> {
_testMap.put(TestUtils.getKey(_mapName, i), _twoMbTestString);
});
},
_noOfRunsToAverage,
2 * _secondInNanos);
clientAssetTree.unregisterSubscriber(_mapName, mapEventSubscriber);
Jvm.pause(1000);
Assert.assertEquals(0, subscription.entrySubscriberCount());
}
/**
* Tests the performance of an event listener on the map for Remove events of 2 MB strings. Expect
* it to handle at least 50 2 MB updates per second.
*/
@Test
public void testSubscriptionMapEventListenerRemovePerformance() {
_testMap.clear();
// Put values before testing as we want to ignore the insert and update events
// Create subscriber and register
TestChronicleMapEventListener mapEventListener =
new TestChronicleMapEventListener(_mapName, _twoMbTestStringLength);
Subscriber<MapEvent> mapEventSubscriber = e -> e.apply(mapEventListener);
clientAssetTree.registerSubscriber(_mapName, MapEvent.class, mapEventSubscriber);
// Perform test a number of times to allow the JVM to warm up, but verify runtime against
// average
long runtimeInNanos = 0;
for (int i = 0; i < _noOfRunsToAverage; i++) {
// Put values before testing as we want to ignore the insert and update events
IntStream.range(0, _noOfPuts)
.forEach(
c -> {
_testMap.put(TestUtils.getKey(_mapName, c), _twoMbTestString);
});
waitFor(() -> mapEventListener.getNoOfInsertEvents().get() >= _noOfPuts);
mapEventListener.resetCounters();
long startTime = System.nanoTime();
IntStream.range(0, _noOfPuts)
.forEach(
c -> {
_testMap.remove(TestUtils.getKey(_mapName, c));
});
runtimeInNanos += System.nanoTime() - startTime;
waitFor(() -> mapEventListener.getNoOfRemoveEvents().get() >= _noOfPuts);
// Test that the correct number of events were triggered on event listener
Assert.assertEquals(0, mapEventListener.getNoOfInsertEvents().get());
Assert.assertEquals(_noOfPuts, mapEventListener.getNoOfRemoveEvents().get());
Assert.assertEquals(0, mapEventListener.getNoOfUpdateEvents().get());
}
Assert.assertTrue((runtimeInNanos / (_noOfPuts * _noOfRunsToAverage)) <= 2 * _secondInNanos);
clientAssetTree.unregisterSubscriber(_mapName, mapEventSubscriber);
}
/**
* Test that listening to events for a given map can handle 50 updates per second of 2 MB string
* values and are triggering events which contain both the key and value (topic).
*/
@Test
public void testSubscriptionMapEventOnTopicPerformance() {
_testMap.clear();
String key = TestUtils.getKey(_mapName, 0);
// Create subscriber and register
TestChronicleTopicSubscriber topicSubscriber =
new TestChronicleTopicSubscriber(key, _twoMbTestStringLength);
clientAssetTree.registerTopicSubscriber(_mapName, String.class, String.class, topicSubscriber);
Jvm.pause(100);
KVSSubscription subscription =
(KVSSubscription) serverAssetTree.getAsset(_mapName).subscription(false);
Assert.assertEquals(1, subscription.topicSubscriberCount());
// Perform test a number of times to allow the JVM to warm up, but verify runtime against
// average
TestUtils.runMultipleTimesAndVerifyAvgRuntime(
i -> {
System.out.println("test");
int events = _noOfPuts * i;
waitFor(() -> events == topicSubscriber.getNoOfEvents().get());
Assert.assertEquals(events, topicSubscriber.getNoOfEvents().get());
},
() -> {
IntStream.range(0, _noOfPuts)
.forEach(
i -> {
_testMap.put(key, _twoMbTestString);
});
},
_noOfRunsToAverage,
3 * _secondInNanos);
// Test that the correct number of events was triggered on event listener
int events = _noOfPuts * _noOfRunsToAverage;
waitFor(() -> events == topicSubscriber.getNoOfEvents().get());
Assert.assertEquals(events, topicSubscriber.getNoOfEvents().get());
clientAssetTree.unregisterTopicSubscriber(_mapName, topicSubscriber);
waitFor(() -> 0 == subscription.topicSubscriberCount());
Assert.assertEquals(0, subscription.topicSubscriberCount());
}
/**
* Test that listening to events for a given key can handle 50 updates per second of 2 MB string
* values.
*/
@Test
public void testSubscriptionMapEventOnKeyPerformance() {
_testMap.clear();
String key = TestUtils.getKey(_mapName, 0);
// Create subscriber and register
// Add 4 for the number of puts that is added to the string
TestChronicleKeyEventSubscriber keyEventSubscriber =
new TestChronicleKeyEventSubscriber(_twoMbTestStringLength);
clientAssetTree.registerSubscriber(
_mapName + "/" + key + "?bootstrap=false", String.class, keyEventSubscriber);
Jvm.pause(100);
Asset child = serverAssetTree.getAsset(_mapName).getChild(key);
Assert.assertNotNull(child);
Subscription subscription = child.subscription(false);
Assert.assertEquals(1, subscription.subscriberCount());
long start = System.nanoTime();
// Perform test a number of times to allow the JVM to warm up, but verify runtime against
// average
TestUtils.runMultipleTimesAndVerifyAvgRuntime(
() -> {
IntStream.range(0, _noOfPuts)
.forEach(
i -> {
_testMap.put(key, _twoMbTestString);
});
},
_noOfRunsToAverage,
3 * _secondInNanos);
waitFor(() -> keyEventSubscriber.getNoOfEvents().get() >= _noOfPuts * _noOfRunsToAverage);
long time = System.nanoTime() - start;
System.out.printf("Took %.3f seconds to receive all events%n", time / 1e9);
// Test that the correct number of events was triggered on event listener
Assert.assertEquals(_noOfPuts * _noOfRunsToAverage, keyEventSubscriber.getNoOfEvents().get());
clientAssetTree.unregisterSubscriber(_mapName + "/" + key, keyEventSubscriber);
Jvm.pause(100);
Assert.assertEquals(0, subscription.subscriberCount());
}
@Before
public void setUp() throws IOException {
Files.deleteIfExists(Paths.get(OS.TARGET, _mapName));
_testMap =
clientAssetTree.acquireMap(_mapName + "?putReturnsNull=true", String.class, String.class);
_testMap.clear();
}
@After
public void after() throws IOException {
assetTree.close();
if (serverEndpoint != null) serverEndpoint.close();
serverAssetTree.close();
if (map instanceof Closeable) ((Closeable) map).close();
TCPRegistry.reset();
System.setProperty("Throttler.maxEventsPreSecond", "0");
}
@BeforeClass
public static void setUpBeforeClass() throws IOException, URISyntaxException {
// YamlLogging.showServerReads = true;
// YamlLogging.clientReads = true;
char[] chars = new char[2 << 20];
Arrays.fill(chars, '~');
_twoMbTestString = new String(chars);
_twoMbTestStringLength = _twoMbTestString.length();
serverAssetTree = new VanillaAssetTree(1).forTesting();
// The following line doesn't add anything and breaks subscriptions
serverAssetTree
.root()
.addWrappingRule(
MapView.class,
"map directly to KeyValueStore",
VanillaMapView::new,
KeyValueStore.class);
serverAssetTree
.root()
.addLeafRule(
KeyValueStore.class,
"use Chronicle Map",
(context, asset) ->
new ChronicleMapKeyValueStore(
context
.basePath(OS.TARGET)
.entries(_noOfPuts)
.averageValueSize(_twoMbTestStringLength),
asset));
TCPRegistry.createServerSocketChannelFor("RemoteSubscriptionModelPerformanceTest.port");
serverEndpoint =
new ServerEndpoint(
"RemoteSubscriptionModelPerformanceTest.port", serverAssetTree, WireType.BINARY);
clientAssetTree =
new VanillaAssetTree(13)
.forRemoteAccess("RemoteSubscriptionModelPerformanceTest.port", WireType.BINARY);
}