package org.infinispan.stress;
import org.infinispan.configuration.cache.ConfigurationBuilder;
import org.infinispan.manager.EmbeddedCacheManager;
import org.infinispan.test.fwk.TestCacheManagerFactory;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.Test;
import org.infinispan.Cache;
/**
* @author Mircea.Markus@jboss.com
*/
@Test (groups = "stress", description = "designed to be run by hand", enabled = false)
public class MemoryCleanupTest {
@BeforeTest
public void createCm() {
}
public void testMemoryConsumption () throws InterruptedException {
final ConfigurationBuilder config = TestCacheManagerFactory.getDefaultCacheConfiguration(true);
EmbeddedCacheManager cm = TestCacheManagerFactory.createCacheManager(config);
Cache<Object,Object> cache = cm.getCache();
long freeMemBefore = freeMemKb();
System.out.println("freeMemBefore = " + freeMemBefore);
for (int i =0; i < 1024 * 300; i++) {
cache.put(i,i);
}
System.out.println("Free meme after: " + freeMemKb());
System.out.println("Consumed memory: " + (freeMemBefore - freeMemKb()));
cm.stop();
for (int i = 0; i<10; i++) {
System.gc();
if (isOkay(freeMemBefore)) {
break;
} else {
Thread.sleep(1000);
}
}
System.out.println("Free memory at the end:" + freeMemKb());
assert isOkay(freeMemBefore);
}
private boolean isOkay(long freeMemBefore) {
return freeMemBefore < freeMemKb() + 0.1 * freeMemKb();
}
public long freeMemKb() {
return Runtime.getRuntime().freeMemory() / 1024;
}
}