/**
* Calls garbage collector and wait.
*
* @throws Exception if any thread has interrupted the current thread while waiting.
*/
private void gc() throws Exception {
Runtime rt = Runtime.getRuntime();
long freeMem0 = rt.freeMemory();
long freeMem = Long.MAX_VALUE;
int cnt = 0;
while (freeMem0 < freeMem && cnt < GC_CALL_CNT) {
System.gc();
U.sleep(WAIT_TIME);
cnt++;
freeMem = freeMem0;
freeMem0 = rt.freeMemory();
}
}
/** @throws Exception If failed. */
private void doTest() throws Exception {
System.gc();
System.gc();
System.gc();
try {
useCache = true;
startGridsMultiThreaded(GRID_CNT);
useCache = false;
Ignite ignite = startGrid();
final IgniteDataStreamer<Integer, String> ldr = ignite.dataStreamer(null);
ldr.perNodeBufferSize(8192);
ldr.receiver(DataStreamerCacheUpdaters.<Integer, String>batchedSorted());
ldr.autoFlushFrequency(0);
final LongAdder8 cnt = new LongAdder8();
long start = U.currentTimeMillis();
Thread t =
new Thread(
new Runnable() {
@SuppressWarnings("BusyWait")
@Override
public void run() {
while (true) {
try {
Thread.sleep(10000);
} catch (InterruptedException ignored) {
break;
}
info(">>> Adds/sec: " + cnt.sumThenReset() / 10);
}
}
});
t.setDaemon(true);
t.start();
int threadNum = 2; // Runtime.getRuntime().availableProcessors();
multithreaded(
new Callable<Object>() {
@SuppressWarnings("InfiniteLoopStatement")
@Override
public Object call() throws Exception {
ThreadLocalRandom8 rnd = ThreadLocalRandom8.current();
while (true) {
int i = rnd.nextInt(ENTRY_CNT);
ldr.addData(i, vals[rnd.nextInt(vals.length)]);
cnt.increment();
}
}
},
threadNum,
"loader");
info("Closing loader...");
ldr.close(false);
long duration = U.currentTimeMillis() - start;
info("Finished performance test. Duration: " + duration + "ms.");
} finally {
stopAllGrids();
}
}