org.apache.paimon.benchmark.metric.cpu.clock

Class Clock

java.lang.Object

org.apache.paimon.benchmark.metric.cpu.clock.Clock

Direct Known Subclasses:

SystemClock

public abstract class Clock
extends Object

A clock that gives access to time. This clock returns two flavors of time:

Absolute Time: This refers to real world wall clock time, and it typically derived from a system clock. It is subject to clock drift and inaccuracy, and can jump if the system clock is adjusted.

Relative Time: This time advances at the same speed as the absolute time, but the timestamps can only be referred to relative to each other. The timestamps have no absolute meaning and cannot be compared across JVM processes. The source for the timestamps is not affected by adjustments to the system clock, so it never jumps.

Constructor Summary

Constructors

Constructor and Description
Clock()

Method Summary

Modifier and Type	Method and Description
abstract long	absoluteTimeMillis()
abstract long	relativeTimeMillis()
abstract long	relativeTimeNanos()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Clock

public Clock()

Method Detail

absoluteTimeMillis

public abstract long absoluteTimeMillis()

relativeTimeMillis

public abstract long relativeTimeMillis()

relativeTimeNanos

public abstract long relativeTimeNanos()