Interface  Description 

Sample 
A statistically representative sample of a data stream.

Class  Description 

Clock 
An abstraction for how time passes.

Clock.CpuTimeClock 
A clock implementation which returns the current thread's CPU time.

Clock.UserTimeClock 
A clock implementation which returns the current time in epoch nanoseconds.

EWMA 
An exponentiallyweighted moving average.

ExponentiallyDecayingSample 
An exponentiallydecaying random sample of
long s. 
Histogram 
A metric which calculates the distribution of a value.

Meter 
A meter metric which measures mean throughput and one, five, and fifteenminute
exponentiallyweighted moving average throughputs.

Snapshot 
A statistical snapshot of a
Snapshot . 
Timer 
A timer metric which aggregates timing durations and provides duration statistics, plus
throughput statistics via
Meter . 
TimerContext 
A timing context.

UniformSample 
A random sample of a stream of
long s. 
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