/**
* 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");
}
/**
* 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");
}
