JSF-Primefaces App:Memory not releasing & Performance impact

[nirajgala190]

JSF-Primefaces App: Memory not releasing & Performance impact issue

I have created Web application using JSF & Primefaces. It is consuming more memory & also not releasing memory.
Also, there is a Performance impact on the application.
Web Server: Apache Tomcat 7.0.32

Please guide me in resolving the issue.

[tandraschko]

use a profiler

[smithh032772]

Please click on ALL of the following, read ALL of them, and then proceed with the memory and performance of your app.

Increase your JSF application performance (Part 1 - Environment & Configuration)

Increase your JSF application performance (Part 2 - Design Patterns)

Improve the Performance of Java EE Applications

JSF Performance: Mojarra improves dramatically with latest release

JSF-Comparison: MyFaces vs. Mojarra

Understanding JSF 2.0 Performance - Part 1

Understanding JSF 2.0 Performance - Part 2

Understanding JSF 2.0 Performance - Part 3

search google for: java memory leak, and read as many of those articles as possible until you understand how to fix memory leaks in your app

[kukeltje]

@Howard: nice summary, maybe BalusC should create a tab for this on http://jsf.zeef.com.

But the referecence to the 'old' Mojarra vs MyFaces (the one with the hockeystick curve) should not be in there I think.

[tandraschko]

But the referecence to the 'old' Mojarra vs MyFaces (the one with the hockeystick curve) should not be in there I think.

I think/believe there is still a big difference or did they more performance improvements? I'm only aware about the issue with a big view with many components.
But maybe someone should run the benchmark again

[cagatay.civici]

Avoid component binding to a session, view scoped bean.

[kukeltje]

@Oleg: they did. The link above the one with the hockeystick curve: https://blog.oio.de/2013/05/16/jsf-perf ... t-release/

[tandraschko]

@Oleg: they did. The link above the one with the hockeystick curve: https://blog.oio.de/2013/05/16/jsf-perf ... t-release/

Thomas, not Oleg
Ahh i see, that would be the better link of course!

[nirajgala190]

Thanks for all posts.
I have read them and shared consolidated issues list below:

1. I am using Mojarra 2.2.6. Would you recommend migrating to MyFaces for better performance.

2. I am using ViewScoped Beans for my page.
I am not binding components to ViewScope Beans, instead I am mapping Component Value to beans objects.

I have noticed that while navigating from one page to other page, Beans objects are not removed from SessionScope.
(ViewScope objects are stored in SessionScope)
Would this be causing memory leaks.? Is there any alternative to this or any code that would remove Beans objects from SessionScope on page navigation.

Please share your views..!

[tandraschko]

1) yep...
3) ViewScoped beans will be released but not eagerly. I would reduce the max views in session (com.sun.faces.numberOfViewsInSession / org.apache.myfaces.NUMBER_OF_VIEWS_IN_SESSION).
If you have real memory leaks, they will of course never be released.

We can't help if you have real memory leaks. This can only be checked via a profiler.