org.apache.log4j.performance
Class NotLogging

java.lang.Object
  |
  +--org.apache.log4j.performance.NotLogging

public class NotLogging

extends Object

Measure the performance of evaluating whether to log or not to log, but not actually logging.

This program takes two arguments, a string which should be "true" for testing shipped code performance and "false" for testing debug-enabled performance the second argument is the run length of the measurement loops.

The results of the measurement (should) show that

• Category evaluation is independent of the length of the category name.

• As expected, using the isDebugEnabled and isInfoEnabled methods eliminates the overhead of message argument construction.

• Message argument construction can be an important slowing factor while evaluating whether to log or not.

Author:

Ceki Gülcü

Constructor Summary

NotLogging()

Method Summary

static void

main(String[] argv)

Methods inherited from class java.lang.Object

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

Constructor Detail

NotLogging

public NotLogging()

Method Detail

main

public static void main(String[] argv)