Taking Memory Usage Periodically

[Arka Sharma]

Hi,

I want to take memory usage within two hours time interval of an enterprise application ?

Regards,
Arka

[Sudheer Bhat]

Do you want to do that in Java?
you can monitor a process via a cron job scheduled to run periodically at 2 hour intervals.

[William Brogden]

Presumably you are familiar with the java.lang.Runtime methods related to memory, right?

Is that the kind of information you want to record?

Bill

[Arka Sharma]

Actually the scenario is that the application is deployed in JBoss.JBoss will be up and running.Now I want to check the nenory usage details within two hour time interval.Now in linux what I do to take the memory usage is view the content of /proc/meminfo.Once before running the application once after running the application.Now since there are no other application will be running it almost give me a rough estimate of the memory usage of the application.In my local machine I also use VisualVM to do the same.But what I want this process to be automated and run within two hour interval both in Window and Linux environment.

[Rishi Shehrawat]

You can look at -Xloggc option. It will log garbage collection information to seperate file & does not have much overhead. You can use tools like gc viewer to view the file.