com.github.benmanes.caffeine.cache.simulator

Class Simulator

java.lang.Object

akka.actor.AbstractActor

com.github.benmanes.caffeine.cache.simulator.Simulator

All Implemented Interfaces:

akka.actor.Actor

public final class Simulator
extends akka.actor.AbstractActor

A simulator that broadcasts the recorded cache events to each policy and generates an aggregated report. See reference.conf for details on the configuration.

The simulator reports the hit rate of each of the policy being evaluated. A miss may occur due to,

• Conflict: multiple entries are mapped to the same location
• Compulsory: the first reference misses and the entry must be loaded
• Capacity: the cache is not large enough to contain the needed entries
• Coherence: an invalidation is issued by another process in the system

It is recommended that multiple access traces are used during evaluation to see how the policies handle different workload patterns. When choosing a policy some metrics that are not reported may be relevant, such as the cost of maintaining the policy's internal structures.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Simulator.Message

Nested classes/interfaces inherited from class akka.actor.AbstractActor

akka.actor.AbstractActor.ActorContext, akka.actor.AbstractActor.Receive

Nested classes/interfaces inherited from interface akka.actor.Actor

akka.actor.Actor.emptyBehavior$, akka.actor.Actor.ignoringBehavior$

Constructor Summary

Constructors

Constructor and Description
Simulator()

Method Summary

Modifier and Type	Method and Description
akka.actor.AbstractActor.Receive	createReceive()
static void	main(String[] args)
void	preRestart(Throwable t, Optional<Object> message)
void	preStart()

Methods inherited from class akka.actor.AbstractActor

akka$actor$Actor$_setter_$context_$eq, akka$actor$Actor$_setter_$self_$eq, aroundPostRestart, aroundPostStop, aroundPreRestart, aroundPreStart, aroundReceive, context, emptyBehavior, getContext, getSelf, getSender, postRestart, postStop, preRestart, receive, receiveBuilder, self, sender, supervisorStrategy, unhandled

Methods inherited from class java.lang.Object

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

Methods inherited from interface akka.actor.Actor

$init$, noSender

Constructor Detail

Simulator

public Simulator()

Method Detail

preStart

public void preStart()

Specified by:

preStart in interface akka.actor.Actor

Overrides:

preStart in class akka.actor.AbstractActor

preRestart

public void preRestart(Throwable t,
                       Optional<Object> message)

Overrides:

preRestart in class akka.actor.AbstractActor

createReceive

public akka.actor.AbstractActor.Receive createReceive()

Specified by:

createReceive in class akka.actor.AbstractActor

main

public static void main(String[] args)