org.apache.calcite.util

Class Benchmark

java.lang.Object

org.apache.calcite.util.Benchmark

public class Benchmark
extends Object

Helps to run benchmarks by running the same task repeatedly and averaging the running times.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Benchmark.Statistician Collects statistics for a test that is run multiple times.

Field Summary

Fields

Modifier and Type	Field and Description
static org.slf4j.Logger	LOGGER Certain tests are enabled only if logging is enabled at debug level or higher.

Constructor Summary

Constructors

Constructor and Description
Benchmark(String description, org.apache.calcite.linq4j.function.Function1<Benchmark.Statistician,Void> function, int repeat)

Method Summary

Modifier and Type	Method and Description
static boolean	enabled() Returns whether performance tests are enabled.
void	run()

Methods inherited from class java.lang.Object

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

Field Detail

LOGGER

public static final org.slf4j.Logger LOGGER

Certain tests are enabled only if logging is enabled at debug level or higher.

Constructor Detail

Benchmark

public Benchmark(String description,
                 org.apache.calcite.linq4j.function.Function1<Benchmark.Statistician,Void> function,
                 int repeat)

Method Detail

enabled

public static boolean enabled()

Returns whether performance tests are enabled.

run

public void run()