private static void checkStats(CacheStats stats, long requestCount, long hitCount, double hitRate, long missCount, double missRate, long loadSuccessCount, long loadFailureCount, double loadExceptionRate, long loadCount, long totalLoadTime, double averageLoadPenalty, long evictionCount, long evictionWeight) { assertThat(stats.requestCount(), is(requestCount)); assertThat(stats.hitCount(), is(hitCount)); assertThat(stats.hitRate(), is(hitRate)); assertThat(stats.missCount(), is(missCount)); assertThat(stats.missRate(), is(missRate)); assertThat(stats.loadSuccessCount(), is(loadSuccessCount)); assertThat(stats.loadFailureCount(), is(loadFailureCount)); assertThat(stats.loadFailureRate(), is(loadExceptionRate)); assertThat(stats.totalLoadTime(), is(totalLoadTime)); assertThat(stats.averageLoadPenalty(), is(averageLoadPenalty)); assertThat(stats.evictionCount(), is(evictionCount)); assertThat(stats.evictionWeight(), is(evictionWeight)); }
@Override public void doMonitor(ServiceEmitter emitter) { final CacheStats oldStats = priorStats.get(); final CacheStats newStats = cache.stats(); final CacheStats deltaStats = newStats.minus(oldStats); final ServiceMetricEvent.Builder builder = ServiceMetricEvent.builder(); emitter.emit(builder.build("query/cache/caffeine/delta/requests", deltaStats.requestCount())); emitter.emit(builder.build("query/cache/caffeine/total/requests", newStats.requestCount())); emitter.emit(builder.build("query/cache/caffeine/delta/loadTime", deltaStats.totalLoadTime())); emitter.emit(builder.build("query/cache/caffeine/total/loadTime", newStats.totalLoadTime())); emitter.emit(builder.build("query/cache/caffeine/delta/evictionBytes", deltaStats.evictionWeight())); emitter.emit(builder.build("query/cache/caffeine/total/evictionBytes", newStats.evictionWeight())); if (!priorStats.compareAndSet(oldStats, newStats)) { // ISE for stack trace log.warn( new IllegalStateException("Multiple monitors"), "Multiple monitors on the same cache causing race conditions and unreliable stats reporting" ); } }
statsForGarbageCollected[MISS_COUNT.ordinal()] += stats.missCount(); statsForGarbageCollected[EVICTION_COUNT.ordinal()] += stats.evictionCount(); statsForGarbageCollected[EVICTION_WEIGHT.ordinal()] += stats.evictionWeight(); statsForGarbageCollected[LOAD_SUCCESS_COUNT.ordinal()] += stats.loadSuccessCount(); statsForGarbageCollected[LOAD_FAILURE_COUNT.ordinal()] += stats.loadFailureCount();
/** * Increments all counters by the values in {@code other}. * * @param other the counter to increment from */ public void incrementBy(@NonNull StatsCounter other) { CacheStats otherStats = other.snapshot(); hitCount.add(otherStats.hitCount()); missCount.add(otherStats.missCount()); loadSuccessCount.add(otherStats.loadSuccessCount()); loadFailureCount.add(otherStats.loadFailureCount()); totalLoadTime.add(otherStats.totalLoadTime()); evictionCount.add(otherStats.evictionCount()); evictionWeight.add(otherStats.evictionWeight()); }
CaffeineMetrics(MeterRegistry parent, MeterIdPrefix idPrefix) { this.parent = requireNonNull(parent, "parent"); this.idPrefix = requireNonNull(idPrefix, "idPrefix"); final String requests = idPrefix.name("requests"); parent.more().counter(requests, idPrefix.tags("result", "hit"), this, func(HIT_COUNT, ref -> ref.cacheStats.hitCount())); parent.more().counter(requests, idPrefix.tags("result", "miss"), this, func(MISS_COUNT, ref -> ref.cacheStats.missCount())); parent.more().counter(idPrefix.name("evictions"), idPrefix.tags(), this, func(EVICTION_COUNT, ref -> ref.cacheStats.evictionCount())); parent.more().counter(idPrefix.name("evictionWeight"), idPrefix.tags(), this, func(EVICTION_WEIGHT, ref -> ref.cacheStats.evictionWeight())); parent.gauge(idPrefix.name("estimatedSize"), idPrefix.tags(), this, func(null, ref -> ref.estimatedSize)); }
@Override protected boolean matchesSafely(CacheContext context, Description description) { if (!context.isRecordingStats()) { return true; } CacheStats stats = context.stats(); desc = new DescriptionBuilder(description); ForkJoinPool.commonPool().awaitQuiescence(10, TimeUnit.SECONDS); switch (type) { case HIT: return desc.expectThat(type.name(), stats.hitCount(), is(count)).matches(); case MISS: return desc.expectThat(type.name(), stats.missCount(), is(count)).matches(); case EVICTION_COUNT: return desc.expectThat(type.name(), stats.evictionCount(), is(count)).matches(); case EVICTION_WEIGHT: return desc.expectThat(type.name(), stats.evictionWeight(), is(count)).matches(); case LOAD_SUCCESS: return desc.expectThat(type.name(), stats.loadSuccessCount(), is(count)).matches(); case LOAD_FAILURE: return desc.expectThat(type.name(), stats.loadFailureCount(), is(count)).matches(); default: throw new AssertionError("Unknown stats type"); } }
/** * Gets the sum of the weights of evicted entries from the class cache. */ public long getClassCacheEvictionWeight() { return classMap.stats().evictionWeight(); }
Assert.assertNull(cache.get(key2)); Assert.assertEquals(0, cache.getCache().stats().evictionWeight()); Assert.assertNull(cache.get(key1)); Assert.assertArrayEquals(val2, cache.get(key2)); Assert.assertEquals(34, cache.getCache().stats().evictionWeight());
public void testSingle() { CacheStats stats = new CacheStats(11, 13, 17, 19, 23, 27, 54); assertEquals(24, stats.requestCount()); assertEquals(11, stats.hitCount()); assertEquals(11.0/24, stats.hitRate()); assertEquals(13, stats.missCount()); assertEquals(13.0/24, stats.missRate()); assertEquals(17, stats.loadSuccessCount()); assertEquals(19, stats.loadFailureCount()); assertEquals(19.0/36, stats.loadFailureRate()); assertEquals(17 + 19, stats.loadCount()); assertEquals(23, stats.totalLoadTime()); assertEquals(23.0/(17 + 19), stats.averageLoadPenalty()); assertEquals(27, stats.evictionCount()); assertEquals(54, stats.evictionWeight()); }
public void testPlus() { CacheStats one = new CacheStats(11, 13, 15, 13, 11, 9, 18); CacheStats two = new CacheStats(53, 47, 41, 39, 37, 35, 70); CacheStats sum = two.plus(one); assertEquals(124, sum.requestCount()); assertEquals(64, sum.hitCount()); assertEquals(64.0/124, sum.hitRate()); assertEquals(60, sum.missCount()); assertEquals(60.0/124, sum.missRate()); assertEquals(56, sum.loadSuccessCount()); assertEquals(52, sum.loadFailureCount()); assertEquals(52.0/108, sum.loadFailureRate()); assertEquals(56 + 52, sum.loadCount()); assertEquals(48, sum.totalLoadTime()); assertEquals(48.0/(56 + 52), sum.averageLoadPenalty()); assertEquals(44, sum.evictionCount()); assertEquals(88, sum.evictionWeight()); assertEquals(sum, one.plus(two)); } }
public void testMinus() { CacheStats one = new CacheStats(11, 13, 17, 19, 23, 27, 54); CacheStats two = new CacheStats(53, 47, 43, 41, 37, 31, 62); CacheStats diff = two.minus(one); assertEquals(76, diff.requestCount()); assertEquals(42, diff.hitCount()); assertEquals(42.0/76, diff.hitRate()); assertEquals(34, diff.missCount()); assertEquals(34.0/76, diff.missRate()); assertEquals(26, diff.loadSuccessCount()); assertEquals(22, diff.loadFailureCount()); assertEquals(22.0/48, diff.loadFailureRate()); assertEquals(26 + 22, diff.loadCount()); assertEquals(14, diff.totalLoadTime()); assertEquals(14.0/(26 + 22), diff.averageLoadPenalty()); assertEquals(4, diff.evictionCount()); assertEquals(8, diff.evictionWeight()); assertEquals(new CacheStats(0, 0, 0, 0, 0, 0, 0), one.minus(two)); }
cacheEvictionWeight.addMetric(cacheName, stats.evictionWeight()); } catch (Exception e) {
/** * Increments all counters by the values in {@code other}. * * @param other the counter to increment from */ public void incrementBy(@Nonnull StatsCounter other) { CacheStats otherStats = other.snapshot(); hitCount.add(otherStats.hitCount()); missCount.add(otherStats.missCount()); loadSuccessCount.add(otherStats.loadSuccessCount()); loadFailureCount.add(otherStats.loadFailureCount()); totalLoadTime.add(otherStats.totalLoadTime()); evictionCount.add(otherStats.evictionCount()); evictionWeight.add(otherStats.evictionWeight()); }
/** * Gets the sum of the weights of evicted entries from the class cache. */ public long getClassCacheEvictionWeight() { return classMap.stats().evictionWeight(); }
@Override public void serialize(CacheStats value, JsonGenerator gen, SerializerProvider provider) throws IOException { gen.writeStartObject(); gen.writeNumberField("requestCount", value.requestCount()); gen.writeNumberField("hitCount", value.hitCount()); gen.writeNumberField("hitRate", value.hitRate()); gen.writeNumberField("missCount", value.missCount()); gen.writeNumberField("missRate", value.missRate()); gen.writeNumberField("loadCount", value.loadCount()); gen.writeNumberField("loadSuccessCount", value.loadSuccessCount()); gen.writeNumberField("loadFailureCount", value.loadFailureCount()); gen.writeNumberField("loadFailureRate", value.loadFailureRate()); gen.writeNumberField("totalLoadTime", value.totalLoadTime()); gen.writeNumberField("averageLoadPenalty", value.averageLoadPenalty()); gen.writeNumberField("evictionCount", value.evictionCount()); gen.writeNumberField("evictionWeight", value.evictionWeight()); gen.writeEndObject(); } }
@Override public void serialize(CacheStats value, JsonGenerator gen, SerializerProvider provider) throws IOException { gen.writeStartObject(); gen.writeNumberField("requestCount", value.requestCount()); gen.writeNumberField("hitCount", value.hitCount()); gen.writeNumberField("hitRate", value.hitRate()); gen.writeNumberField("missCount", value.missCount()); gen.writeNumberField("missRate", value.missRate()); gen.writeNumberField("loadCount", value.loadCount()); gen.writeNumberField("loadSuccessCount", value.loadSuccessCount()); gen.writeNumberField("loadFailureCount", value.loadFailureCount()); gen.writeNumberField("loadFailureRate", value.loadFailureRate()); gen.writeNumberField("totalLoadTime", value.totalLoadTime()); gen.writeNumberField("averageLoadPenalty", value.averageLoadPenalty()); gen.writeNumberField("evictionCount", value.evictionCount()); gen.writeNumberField("evictionWeight", value.evictionWeight()); gen.writeEndObject(); } }
@Override public void serialize(CacheStats value, JsonGenerator gen, SerializerProvider provider) throws IOException { gen.writeStartObject(); gen.writeNumberField("requestCount", value.requestCount()); gen.writeNumberField("hitCount", value.hitCount()); gen.writeNumberField("hitRate", value.hitRate()); gen.writeNumberField("missCount", value.missCount()); gen.writeNumberField("missRate", value.missRate()); gen.writeNumberField("loadCount", value.loadCount()); gen.writeNumberField("loadSuccessCount", value.loadSuccessCount()); gen.writeNumberField("loadFailureCount", value.loadFailureCount()); gen.writeNumberField("loadFailureRate", value.loadFailureRate()); gen.writeNumberField("totalLoadTime", value.totalLoadTime()); gen.writeNumberField("averageLoadPenalty", value.averageLoadPenalty()); gen.writeNumberField("evictionCount", value.evictionCount()); gen.writeNumberField("evictionWeight", value.evictionWeight()); gen.writeEndObject(); } }
@Override public void doMonitor(ServiceEmitter emitter) { final CacheStats oldStats = priorStats.get(); final CacheStats newStats = cache.stats(); final CacheStats deltaStats = newStats.minus(oldStats); final ServiceMetricEvent.Builder builder = ServiceMetricEvent.builder(); emitter.emit(builder.build("query/cache/caffeine/delta/requests", deltaStats.requestCount())); emitter.emit(builder.build("query/cache/caffeine/total/requests", newStats.requestCount())); emitter.emit(builder.build("query/cache/caffeine/delta/loadTime", deltaStats.totalLoadTime())); emitter.emit(builder.build("query/cache/caffeine/total/loadTime", newStats.totalLoadTime())); emitter.emit(builder.build("query/cache/caffeine/delta/evictionBytes", deltaStats.evictionWeight())); emitter.emit(builder.build("query/cache/caffeine/total/evictionBytes", newStats.evictionWeight())); if (!priorStats.compareAndSet(oldStats, newStats)) { // ISE for stack trace log.warn( new IllegalStateException("Multiple monitors"), "Multiple monitors on the same cache causing race conditions and unreliable stats reporting" ); } }
@Override public void doMonitor(ServiceEmitter emitter) { final CacheStats oldStats = priorStats.get(); final CacheStats newStats = cache.stats(); final CacheStats deltaStats = newStats.minus(oldStats); final ServiceMetricEvent.Builder builder = ServiceMetricEvent.builder(); emitter.emit(builder.build("query/cache/caffeine/delta/requests", deltaStats.requestCount())); emitter.emit(builder.build("query/cache/caffeine/total/requests", newStats.requestCount())); emitter.emit(builder.build("query/cache/caffeine/delta/loadTime", deltaStats.totalLoadTime())); emitter.emit(builder.build("query/cache/caffeine/total/loadTime", newStats.totalLoadTime())); emitter.emit(builder.build("query/cache/caffeine/delta/evictionBytes", deltaStats.evictionWeight())); emitter.emit(builder.build("query/cache/caffeine/total/evictionBytes", newStats.evictionWeight())); if (!priorStats.compareAndSet(oldStats, newStats)) { // ISE for stack trace log.warn( new IllegalStateException("Multiple monitors"), "Multiple monitors on the same cache causing race conditions and unreliable stats reporting" ); } }