Important Whoisonline makes site run slow and consumes large quantity of PHP memory

Hi all
I have just installed Kunena on one of my site. Just after installing the forum I got 500 Internal Error. I searched in this category for related topic and found that this error is related to memory so I increased the memory limit from 64 MB to 128 MB and error gone. But on next day same error appeared again I increased memory limit from 128 MB to 192 MB.
Please note
I have just installed the forum so it doesn't have any post still.
I don't have any memory eater module or extensions.
All css and javasrcipt files are minified and compressed.
This is happening only on Kunena forum index page.
So i just want to know from community members that is kunena is right choise for my site?
If without any post kunena is consuming so much memory than it would work after starting receiving post from users?
Could you please tell me how much memory would kunena require to work properly on my site?
Site URL :- computernetworkingnotes.com/forum/index
Daily Traffic: - 10,000+

*** Topic moved to K 1.7 Common Questions category ***

The answer to your question, "How much memory does Kunena require?" depends on what other Joomla extensions you have installed and what you're running on your forum pages. A guide to answering those questions is Improving Kunena performance .

Your website has a lot of Joomla extensions installed. You should seriously considered removing those extensions that do not provide you with the benefits you need to meet your site's objectives.

The error on your site reads:

Fatal error: Access to undeclared static property: JLoader::$classes in /home/compute6/public_html/libraries/loader.php on line 189

I searched the forum here and this is all I found that relates to that error: AUP integrated with kunena login module fatal error . Are you using AUP?

Hi thanks for writing
I really doesn't understand this.
“Your website has a lot of Joomla extensions installed. You should seriously considered removing those extensions that do not provide you with the benefits you need to meet your site's objectives.”

See in attached image what extensions I have installed most of them are joomla's default components.

Every plug-in and module that gets loaded in the page adds to the memory usage. Also all Apache extensions that are loaded will make your site to use more memory.

I've been successfully running Kunena in my test environment with 16M memory limit (most pages are under 10MB). But once I installed JomSocial and VirtueMart into one of the test sites, requirement went up to 64M (34MB used) for the same page.

500 errors could be related to anything -- unless the error says that you run out of memory.

Hi Matias

Thanks for writing, Yes I had seen the memory error. Anyway before installing kunena my site was running successfully on 64MB and I had never face any error. I am getting this only on index page of kunena forum. And now I have 192MB memory but still sometime I got same error and main thing is that currently I have no post what would happen when I would get posts on forum. Could you help me out to finding the faulty modules or plugin which is consuming so much memory ? In my pervious reply I have attached a screen shot of my installed extensions.

I think that easiest is to make another clean installation and just install Kunena into it. That allows us to be sure that there's no issues in Kunena itself when running in certain environment.

After that I would add the extensions, one by one and see if memory usage changes.

You listed only components -- with aren't run in the same page with Kunena, except for sh404SEF (by plug-ins). If something else than Kunena is using your memory, you should take a look into modules and plug-ins that load in the same page.