A statistically representative sample of a data stream.
An abstraction for how time passes.
A clock implementation which returns the current thread's CPU time.
A clock implementation which returns the current time in epoch nanoseconds.
An exponentially-weighted moving average.
An exponentially-decaying random sample of
A metric which calculates the distribution of a value.
A meter metric which measures mean throughput and one-, five-, and fifteen-minute exponentially-weighted moving average throughputs.
A statistical snapshot of a
A timer metric which aggregates timing durations and provides duration statistics, plus throughput statistics via
A timing context.
A random sample of a stream of
Utilities for collecting statistics
Copyright © 2000-2015 Apache Software Foundation. All Rights Reserved.