mytang0 commented on code in PR #11628:
URL: https://github.com/apache/dubbo/pull/11628#discussion_r1114513259
##########
dubbo-metrics/dubbo-metrics-default/src/main/java/org/apache/dubbo/metrics/collector/sample/SimpleMetricsCountSampler.java:
##########
@@ -38,124 +43,120 @@
public abstract class SimpleMetricsCountSampler<S, K, M extends Metric>
implements MetricsCountSampler<S, K, M> {
- private final ConcurrentMap<M, AtomicLong> lastRT = new
ConcurrentHashMap<>();
- private final ConcurrentMap<M, LongAccumulator> minRT = new
ConcurrentHashMap<>();
- private final ConcurrentMap<M, LongAccumulator> maxRT = new
ConcurrentHashMap<>();
- private final ConcurrentMap<M, AtomicLong> avgRT = new
ConcurrentHashMap<>();
- private final ConcurrentMap<M, AtomicLong> totalRT = new
ConcurrentHashMap<>();
- private final ConcurrentMap<M, AtomicLong> rtCount = new
ConcurrentHashMap<>();
+ private final ConcurrentMap<M, AtomicLong> EMPTY_COUNT = new
ConcurrentHashMap<>();
- private Map<K, ConcurrentMap<M, AtomicLong>> metricCounter = new
ConcurrentHashMap<>();
+ private final ConcurrentMap<M, LongAccumulator> minRT = new
ConcurrentHashMap<>();
+ private final ConcurrentMap<M, LongAccumulator> maxRT = new
ConcurrentHashMap<>();
+
+ // lastRT, totalRT, rtCount, avgRT share a container, can utilize the
system cache line
+ private final ConcurrentMap<M, AtomicLongArray> RTArray = new
ConcurrentHashMap<>();
Review Comment:
Already fixed
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