Update client-side stats to use light weight Hashtable#11382

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dougqh/conflating-metrics-background-workfrom

dougqh/optimize-metric-key

Commits on May 18, 2026

Add Hashtable and LongHashingUtils to datadog.trace.util

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Add AggregateTable + AggregateEntry backed by Hashtable

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Swap LRUCache for AggregateTable in Aggregator + route disable() clear

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Eliminate MetricKey: inline its fields onto AggregateEntry

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Add unit tests for Hashtable and LongHashingUtils

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Apply spotless formatting to Hashtable and LongHashingUtils

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Add JMH benchmarks for Hashtable.D1 and D2

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Add benchmark results to HashtableBenchmark header

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Commits on May 19, 2026

Commits on May 20, 2026

Commits on May 21, 2026