presto-raptor-legacy/src/main/java/io/prestosql/plugin/raptor/legacy/storage/organization/ShardCompactor.java/ShardCompactor/getCompactionLatencyMillis
class ShardCompactor:    @Managed
    @Nested
    public DistributionStat getCompactionLatencyMillis()
    {
        return compactionLatencyMillis;
    }