org.infinispan.hotrod.impl.cache.ClientStatistics Maven / Gradle / Ivy
The newest version!
package org.infinispan.hotrod.impl.cache;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicLong;
import java.util.concurrent.atomic.AtomicLongFieldUpdater;
import org.infinispan.commons.time.TimeService;
import org.infinispan.commons.util.concurrent.StripedCounters;
import org.infinispan.hotrod.jmx.RemoteCacheClientStatisticsMXBean;
import org.infinispan.hotrod.near.NearCacheService;
public final class ClientStatistics implements RemoteCacheClientStatisticsMXBean {
private final boolean enabled;
private final AtomicLong startNanoseconds = new AtomicLong(0);
private final AtomicLong resetNanoseconds = new AtomicLong(0);
private final NearCacheService nearCacheService;
private final TimeService timeService;
private final StripedCounters counters = new StripedCounters<>(StripeC::new);
ClientStatistics(boolean enabled, TimeService timeService, NearCacheService nearCacheService) {
this.enabled = enabled;
this.timeService = timeService;
this.nearCacheService = nearCacheService;
if (nearCacheService != null)
nearCacheService.setInvalidationCallback(this::incrementNearCacheInvalidations);
}
ClientStatistics(boolean enabled, TimeService timeService) {
this(enabled, timeService, null);
}
public boolean isEnabled() {
return enabled;
}
@Override
public long getRemoteHits() {
return counters.get(StripeB.remoteCacheHitsFieldUpdater);
}
@Override
public long getRemoteMisses() {
return counters.get(StripeB.remoteCacheMissesFieldUpdater);
}
@Override
public long getAverageRemoteReadTime() {
long total = counters.get(StripeB.remoteCacheHitsFieldUpdater) + counters.get(StripeB.remoteCacheMissesFieldUpdater);
if (total == 0)
return 0;
total = (counters.get(StripeB.remoteCacheHitsTimeFieldUpdater) + counters.get(StripeB.remoteCacheMissesTimeFieldUpdater)) / total;
return TimeUnit.NANOSECONDS.toMillis(total);
}
@Override
public long getRemoteStores() {
return counters.get(StripeB.remoteCacheStoresFieldUpdater);
}
@Override
public long getAverageRemoteStoreTime() {
long total = counters.get(StripeB.remoteCacheStoresFieldUpdater);
if (total == 0)
return 0;
total = counters.get(StripeB.remoteCacheStoresTimeFieldUpdater) / total;
return TimeUnit.NANOSECONDS.toMillis(total);
}
@Override
public long getRemoteRemoves() {
return counters.get(StripeB.remoteCacheRemovesFieldUpdater);
}
@Override
public long getAverageRemoteRemovesTime() {
long total = counters.get(StripeB.remoteCacheRemovesFieldUpdater);
if (total == 0)
return 0;
total = counters.get(StripeB.remoteCacheRemovesTimeFieldUpdater) / total;
return TimeUnit.NANOSECONDS.toMillis(total);
}
@Override
public long getNearCacheHits() {
return counters.get(StripeB.nearCacheHitsFieldUpdater);
}
@Override
public long getNearCacheMisses() {
return counters.get(StripeB.nearCacheMissesFieldUpdater);
}
@Override
public long getNearCacheInvalidations() {
return counters.get(StripeB.nearCacheInvalidationsFieldUpdater);
}
@Override
public long getNearCacheSize() {
return nearCacheService != null ? nearCacheService.size() : 0;
}
public long time() {
return timeService.time();
}
public void dataRead(boolean foundValue, long startTimeNanoSeconds, int count) {
long duration = timeService.timeDuration(startTimeNanoSeconds, TimeUnit.NANOSECONDS);
StripeB stripe = counters.stripeForCurrentThread();
if (foundValue) {
counters.add(StripeB.remoteCacheHitsTimeFieldUpdater, stripe, duration);
counters.add(StripeB.remoteCacheHitsFieldUpdater, stripe, count);
} else {
counters.add(StripeB.remoteCacheMissesTimeFieldUpdater, stripe, duration);
counters.add(StripeB.remoteCacheMissesFieldUpdater, stripe, count);
}
}
public void dataStore(long startTimeNanoSeconds, int count) {
long duration = timeService.timeDuration(startTimeNanoSeconds, TimeUnit.NANOSECONDS);
StripeB stripe = counters.stripeForCurrentThread();
counters.add(StripeB.remoteCacheStoresTimeFieldUpdater, stripe, duration);
counters.add(StripeB.remoteCacheStoresFieldUpdater, stripe, count);
}
public void dataRemove(long startTimeNanoSeconds, int count) {
long duration = timeService.timeDuration(startTimeNanoSeconds, TimeUnit.NANOSECONDS);
StripeB stripe = counters.stripeForCurrentThread();
counters.add(StripeB.remoteCacheRemovesTimeFieldUpdater, stripe, duration);
counters.add(StripeB.remoteCacheRemovesFieldUpdater, stripe, count);
}
public void incrementNearCacheMisses() {
counters.increment(StripeB.nearCacheMissesFieldUpdater, counters.stripeForCurrentThread());
}
public void incrementNearCacheHits() {
counters.increment(StripeB.nearCacheHitsFieldUpdater, counters.stripeForCurrentThread());
}
public void incrementNearCacheInvalidations() {
counters.increment(StripeB.nearCacheInvalidationsFieldUpdater, counters.stripeForCurrentThread());
}
@Override
public void resetStatistics() {
counters.reset(StripeB.remoteCacheHitsFieldUpdater);
counters.reset(StripeB.remoteCacheHitsTimeFieldUpdater);
counters.reset(StripeB.remoteCacheMissesFieldUpdater);
counters.reset(StripeB.remoteCacheMissesTimeFieldUpdater);
counters.reset(StripeB.remoteCacheRemovesFieldUpdater);
counters.reset(StripeB.remoteCacheRemovesTimeFieldUpdater);
counters.reset(StripeB.remoteCacheStoresFieldUpdater);
counters.reset(StripeB.remoteCacheStoresTimeFieldUpdater);
counters.reset(StripeB.nearCacheHitsFieldUpdater);
counters.reset(StripeB.nearCacheMissesFieldUpdater);
counters.reset(StripeB.nearCacheInvalidationsFieldUpdater);
startNanoseconds.set(timeService.time());
resetNanoseconds.set(startNanoseconds.get());
}
@Override
public long getTimeSinceReset() {
return timeService.timeDuration(resetNanoseconds.get(), TimeUnit.SECONDS);
}
/**
* It returns a {@link ClientStatistics} instance to be used when the statistics aren't needed.
*
* @return a disabled {@link ClientStatistics} instance.
*/
public static ClientStatistics dummyClientStatistics(TimeService timeService) {
return new ClientStatistics(false, timeService);
}
private static class StripeA {
@SuppressWarnings("unused")
private long slack1, slack2, slack3, slack4, slack5, slack6, slack7, slack8;
}
@SuppressWarnings("VolatileLongOrDoubleField")
private static class StripeB extends StripeA {
static final AtomicLongFieldUpdater remoteCacheHitsFieldUpdater =
AtomicLongFieldUpdater.newUpdater(StripeB.class, "remoteCacheHits");
static final AtomicLongFieldUpdater remoteCacheHitsTimeFieldUpdater =
AtomicLongFieldUpdater.newUpdater(StripeB.class, "remoteCacheHitsTime");
static final AtomicLongFieldUpdater remoteCacheMissesFieldUpdater =
AtomicLongFieldUpdater.newUpdater(StripeB.class, "remoteCacheMisses");
static final AtomicLongFieldUpdater remoteCacheMissesTimeFieldUpdater =
AtomicLongFieldUpdater.newUpdater(StripeB.class, "remoteCacheMissesTime");
static final AtomicLongFieldUpdater remoteCacheRemovesFieldUpdater =
AtomicLongFieldUpdater.newUpdater(StripeB.class, "remoteCacheRemoves");
static final AtomicLongFieldUpdater remoteCacheRemovesTimeFieldUpdater =
AtomicLongFieldUpdater.newUpdater(StripeB.class, "remoteCacheRemovesTime");
static final AtomicLongFieldUpdater remoteCacheStoresFieldUpdater =
AtomicLongFieldUpdater.newUpdater(StripeB.class, "remoteCacheStores");
static final AtomicLongFieldUpdater remoteCacheStoresTimeFieldUpdater =
AtomicLongFieldUpdater.newUpdater(StripeB.class, "remoteCacheStoresTime");
static final AtomicLongFieldUpdater nearCacheHitsFieldUpdater =
AtomicLongFieldUpdater.newUpdater(StripeB.class, "nearCacheHits");
static final AtomicLongFieldUpdater nearCacheMissesFieldUpdater =
AtomicLongFieldUpdater.newUpdater(StripeB.class, "nearCacheMisses");
static final AtomicLongFieldUpdater nearCacheInvalidationsFieldUpdater =
AtomicLongFieldUpdater.newUpdater(StripeB.class, "nearCacheInvalidations");
private volatile long remoteCacheHits = 0;
private volatile long remoteCacheHitsTime = 0;
private volatile long remoteCacheMisses = 0;
private volatile long remoteCacheMissesTime = 0;
private volatile long remoteCacheRemoves = 0;
private volatile long remoteCacheRemovesTime = 0;
private volatile long remoteCacheStores = 0;
private volatile long remoteCacheStoresTime = 0;
private volatile long nearCacheHits = 0;
private volatile long nearCacheMisses = 0;
private volatile long nearCacheInvalidations = 0;
}
private static final class StripeC extends StripeB {
@SuppressWarnings("unused")
private long slack1, slack2, slack3, slack4, slack5, slack6, slack7, slack8;
}
}