@Test
public void testAssertBigPayload() {
List<CachePeer> localPeers = manager1.getCachePeerListener("RMI").getBoundCachePeers();
List<byte[]> payloadList = PayloadUtil.createCompressedPayloadList(localPeers, 150);
Assert.assertTrue("Payload is not big enough for cacheManager-1", payloadList.size() > 1);
localPeers = manager2.getCachePeerListener("RMI").getBoundCachePeers();
payloadList = PayloadUtil.createCompressedPayloadList(localPeers, 150);
Assert.assertTrue("Payload is not big enough for cacheManager-2", payloadList.size() > 1);
localPeers = manager3.getCachePeerListener("RMI").getBoundCachePeers();
payloadList = PayloadUtil.createCompressedPayloadList(localPeers, 150);
Assert.assertTrue("Payload is not big enough for cacheManager-3", payloadList.size() > 1);
CacheManager manager4 =
new CacheManager(
AbstractCacheTest.TEST_CONFIG_DIR
+ "distribution/ehcache-distributed-big-payload-4.xml");
try {
localPeers = manager4.getCachePeerListener("RMI").getBoundCachePeers();
payloadList = PayloadUtil.createCompressedPayloadList(localPeers, 150);
Assert.assertTrue("Payload is not big enough for cacheManager-4", payloadList.size() > 1);
} finally {
manager4.shutdown();
}
}
/**
* 376 µs per one gzipping each time. .1 µs if we compare hashCodes on the String and only gzip as
* necessary.
*
* @throws java.io.IOException
* @throws InterruptedException
*/
@Test
public void testGzipSanityAndPerformance() throws IOException, InterruptedException {
String payload = createReferenceString();
// warmup vm
for (int i = 0; i < 10; i++) {
byte[] compressed = PayloadUtil.gzip(payload.getBytes());
// make sure we don't forget to close the stream
assertTrue(compressed.length > 300);
Thread.sleep(20);
}
int hashCode = payload.hashCode();
StopWatch stopWatch = new StopWatch();
for (int i = 0; i < 10000; i++) {
if (hashCode != payload.hashCode()) {
PayloadUtil.gzip(payload.getBytes());
}
}
long elapsed = stopWatch.getElapsedTime();
LOG.info("Gzip took " + elapsed / 10F + " µs");
}
private void processPayload(byte[] compressedPayload) {
byte[] payload = PayloadUtil.ungzip(compressedPayload);
String rmiUrls = new String(payload);
if (self(rmiUrls)) {
return;
}
rmiUrls = rmiUrls.trim();
if (LOG.isLoggable(Level.FINE)) {
LOG.fine("rmiUrls received " + rmiUrls);
}
processRmiUrls(rmiUrls);
}
/**
* 169 µs per one.
*
* @throws IOException
* @throws InterruptedException
*/
@Test
public void testUngzipPerformance() throws IOException, InterruptedException {
String payload = createReferenceString();
int length = payload.toCharArray().length;
byte[] original = payload.getBytes();
int byteLength = original.length;
assertEquals(length, byteLength);
byte[] compressed = PayloadUtil.gzip(original);
// warmup vm
for (int i = 0; i < 10; i++) {
byte[] uncompressed = PayloadUtil.ungzip(compressed);
uncompressed.hashCode();
assertEquals(original.length, uncompressed.length);
Thread.sleep(20);
}
StopWatch stopWatch = new StopWatch();
for (int i = 0; i < 10000; i++) {
PayloadUtil.ungzip(compressed);
}
long elapsed = stopWatch.getElapsedTime();
LOG.info("Ungzip took " + elapsed / 10000F + " µs");
}
