com.helger.schematron.benchmark

Class AbstractBenchmarkTask

java.lang.Object

com.helger.schematron.benchmark.AbstractBenchmarkTask

Direct Known Subclasses:

MainBenchmarkIsValidSchematron, MainBenchmarkSchematronGetSVRL

public abstract class AbstractBenchmarkTask
extends Object

Abstract benchmarking class.

Author:

Philip Helger

Field Summary

Fields

Modifier and Type	Field and Description
protected static Logger	s_aLogger logger to use.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractBenchmarkTask()

Method Summary

Modifier and Type	Method and Description
protected static double	benchmarkTask(Runnable aTask) Measures how long it takes to execute the run method of the task arg.
protected static void	logSystemInfo()

Methods inherited from class java.lang.Object

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

Field Detail

s_aLogger

protected static final Logger s_aLogger

logger to use.

Constructor Detail

AbstractBenchmarkTask

protected AbstractBenchmarkTask()

Method Detail

logSystemInfo

protected static void logSystemInfo()

benchmarkTask

protected static final double benchmarkTask(Runnable aTask)

Measures how long it takes to execute the run method of the task arg.

This method uses the MIN_WARMUP_CALLS and MIN_BENCHMARK_TIME constants to obtain accurate results.

This method explicitly requests garbage collection before doing each benchmark. Therefore, unless you actually want to include the effect of garbage collection in the benchmark, the JVM should use a "stop-the-world" garbage collector, if it is available. (Usually it is. With Sun's tools, this is, in fact, the default garbage collector type.) The type of garbage collectors to avoid are incremental, concurrent, or parallel ones.

Parameters:

aTask - The task to be executed

Returns:

average execution time of a single invocation of task.run, in microseconds