Comments on: Java garbage collection logging

By: Frank

Frank — Tue, 10 Jan 2012 09:19:52 +0000

Boris, Mike, I think the file is empty simply because there has been no garbage collection during the runtime of your application.

If you add an explicit call to System.gc(); you should see something in the file.

By: Mike Christianson

Mike Christianson — Fri, 19 Mar 2010 03:51:00 +0000

Boris, what happens if you print out the args? I think you may discover something interesting!

By: Boris

Boris — Thu, 18 Mar 2010 17:17:14 +0000

Hello Mike.
I wrote simple program.
and use next command line to run
java -jar “JavaApplication1.jar” -verbose:gc -Xloggc:borisLog.log
but Log is empty Could You help me, please.

package javaapplication1;
public class Main {
public static void main(String[] args) throws InterruptedException {
System.out.println(“Start!”);
for(int i = 0; i < 10; i++) {
Thread.sleep(1000);
System.out.println("Continue!");
}
System.out.println("Finish!");
}
}

By: Ric

Ric — Mon, 15 Mar 2010 08:04:26 +0000

Simple and Concise info I can use and understand… A newbie.
Good stuff Mike… Keep Rocking
Cheers!

By: Mike Christianson

Mike Christianson — Sat, 13 Mar 2010 08:17:28 +0000

Sorry, Girish, to which link were you referring?

By: Girish

Girish — Fri, 12 Mar 2010 08:18:31 +0000

Link isnt working:(.
Can you please fix it Mike, I am eager to try it!

By: Abhishek Goyal

Abhishek Goyal — Thu, 29 Oct 2009 18:48:01 +0000

Hi Mike !! Great Job !! Simple and useful !! Thanks !!

By: Janos Vinceller

Janos Vinceller — Wed, 07 Oct 2009 19:30:33 +0000

Hi Mike! I like the way you keep it simple. Maybe you can mention the flag to add timestamps too: -XX:+PrintGCTimeStamps

By: Jeffery Strickler

Jeffery Strickler — Tue, 21 Jul 2009 18:28:55 +0000

Hi Mike! You rock! I was looking for something to show a colleague that would explain the built-in gc log and found you when I googled. Nice work man!