System.out.println VS log4j

[Ritesh Agrawal]

Hi,

Can you please direct me to some article which discusses the performance comparison between using System.out.println and using log4j to write log outputs.

Thanks

[Joe Ess]

You should be pleased to know that when configured with the SimpleLayout performance tests have shown log4j to log as quickly as System.out.println.

Apache Log4j 1.2 Short Introduction

[Ritesh Agrawal]

Thanks. We are using log4j because on stress testing our application, we found that System.out.println is about the same as using log4j in async mode.

Appreicate your time and effort.