org.apache.brooklyn.test.performance

Class PerformanceTestUtils

java.lang.Object

org.apache.brooklyn.test.performance.PerformanceTestUtils

public class PerformanceTestUtils
extends Object

Constructor Summary

Constructors

Constructor and Description
PerformanceTestUtils()

Method Summary

Modifier and Type	Method and Description
static double	getProcessCpuAverage() Not very fine-grained so not very useful; use getProcessCpuTime(Duration)
static long	getProcessCpuTime()
static double	getProcessCpuTime(Duration period)
static Future<?>	sampleProcessCpuTime(Duration period, String loggingContext) Creates a background thread that will log.info the CPU fraction usage repeatedly, sampling at the given period.
static Future<?>	sampleProcessCpuTime(Duration period, String loggingContext, List<Double> cpuFractions)

Methods inherited from class java.lang.Object

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

Constructor Detail

PerformanceTestUtils

public PerformanceTestUtils()

Method Detail

getProcessCpuTime

public static long getProcessCpuTime()

getProcessCpuTime

public static double getProcessCpuTime(Duration period)

getProcessCpuAverage

public static double getProcessCpuAverage()

Not very fine-grained so not very useful; use getProcessCpuTime(Duration)

sampleProcessCpuTime

public static Future<?> sampleProcessCpuTime(Duration period,
                                             String loggingContext)

Creates a background thread that will log.info the CPU fraction usage repeatedly, sampling at the given period. Callers must cancel the returned future, e.g. future.cancel(true), otherwise it will keep logging until the JVM exits.

sampleProcessCpuTime

public static Future<?> sampleProcessCpuTime(Duration period,
                                             String loggingContext,
                                             List<Double> cpuFractions)