Question Slow execution of open, search and reply after move to 5.1.12.1

Rich,

Thank you for your suggestion.

I have turned on debugging and loaded a page containing images. The information points to the afterRenderComponent as the process taking the time.

Does that help at all?

With thanks
David

[hr]

Time to create page: 40.780 seconds


Time: 30.15 ms / 30.15 ms Memory: 1.711 MB / 2.10 MB Application: afterLoad
Time: 139.33 ms / 169.48 ms Memory: 7.109 MB / 9.21 MB Application: afterInitialise
Time: 49.49 ms / 218.97 ms Memory: 1.656 MB / 10.86 MB Application: afterRoute
Time: 3.50 ms / 222.47 ms Memory: 0.018 MB / 10.88 MB Application: beforeRenderComponent com_kunena
Time: 108.15 ms / 330.61 ms Memory: 4.208 MB / 15.09 MB Application: Before Access::preloadComponents (all components)
Time: 1.46 ms / 332.07 ms Memory: 0.059 MB / 15.15 MB Application: After Access::preloadComponents (all components)
Time: 0.06 ms / 332.13 ms Memory: 0.000 MB / 15.15 MB Application: Before Access::getAssetRules (id:2833 name:com_kunena)
Time: 1.14 ms / 333.27 ms Memory: 0.026 MB / 15.17 MB Application: After Access::getAssetRules (id:2833 name:com_kunena)
Time: 40671.28 ms / 41004.55 ms Memory: 7.065 MB / 22.24 MB Application: afterRenderComponent com_kunena
Time: 3.33 ms / 41007.89 ms Memory: 0.024 MB / 22.26 MB Application: afterDispatch
Time: 8.10 ms / 41015.99 ms Memory: 0.072 MB / 22.33 MB Application: beforeRenderModule mod_breadcrumbs (Breadcrumb)
Time: 3.02 ms / 41019.01 ms Memory: 0.060 MB / 22.39 MB Application: afterRenderModule mod_breadcrumbs (Breadcrumb)
Time: 0.05 ms / 41019.06 ms Memory: 0.000 MB / 22.39 MB Application: Before Access::getAssetRules (id:1 name:root.1)
Time: 0.02 ms / 41019.08 ms Memory: 0.002 MB / 22.39 MB Application: After Access::getAssetRules (id:1 name:root.1)
Time: 2.20 ms / 41021.29 ms Memory: 0.080 MB / 22.47 MB Application: beforeRenderModule mod_menu (Main Menu)
Time: 9.14 ms / 41030.43 ms Memory: 0.200 MB / 22.67 MB Application: afterRenderModule mod_menu (Main Menu)
Time: 3.84 ms / 41034.27 ms Memory: 0.000 MB / 22.65 MB Application: beforeRenderModule mod_login (Login or create an account)
Time: 5.16 ms / 41039.42 ms Memory: 0.027 MB / 22.67 MB Application: afterRenderModule mod_login (Login or create an account)
Time: 3.79 ms / 41043.22 ms Memory: 0.015 MB / 22.69 MB Application: beforeRenderModule mod_menu (topmenu)
Time: 3.68 ms / 41046.90 ms Memory: 0.031 MB / 22.72 MB Application: afterRenderModule mod_menu (topmenu)
Time: 3.86 ms / 41050.76 ms Memory: 0.000 MB / 22.72 MB Application: beforeRenderModule mod_search (Search)
Time: 3.03 ms / 41053.80 ms Memory: 0.023 MB / 22.74 MB Application: afterRenderModule mod_search (Search)
Time: 22.39 ms / 41076.19 ms Memory: 0.484 MB / 23.23 MB Application: afterRender

Database

Queries total: 35.07 ms

Memory usage
24.15 MB (25,327,248 Bytes)

Database queries
65 Queries Logged 35.07 ms

@djb I'm not saying this will solve your problem, because I'm not sure what your problem is.
But after see your website, I notice several things that are slowing down your site.

I would suggest to you:
1. Enable gzip compression
2. Leverage browser caching
3. Combine images using CSS sprites
4. Minify CSS

Also, I would suggest to:
Reinstall Joomla again to override any defective file
Reinstall Kunena again to override any defective file
Repair database via phpMyAdmin
Optimize database via phpMyAdmin
Clear all cookies in your browser (Ctrl + Shift + Del)
Clear all cache in your browser (Ctrl + F5)
Upgrade to PHP 7.3.7 (if not done yet)
Upgrade to MySQL 5.7.26 (if not done yet)
Upgrade to SSD (if still using traditional hard drives)

Also, make sure your server does have a defective hard drive
More ideas after your reply

ssh,

Many thanks for your messages. These are useful suggestions that will speed up most sites.

You reminded me that I have disables JCH Optimise as part of my testing so I have re-enabled that which will cover items 3 and 4 on your list.

My version of PHP is 7.2.20.

I will continue to work through your list. I think the problem has its root with the last version of the forum and I see a new version has been released so I will install that now ...

With thanks again
David

I have just upgraded to 5.1.13.1 and verified that my problem of slow loading pages containing images persists.

For the page: www.angloboerwar.com/forum/2-introductio...-imperial-volunteers

5.1.12.1: Time to create page: 35.746 seconds
5.1.13.1: Time to create page: 35.724 seconds

Almost identical.

Please change this setting temporary, just to see the difference in load time:
Backend->Kunena Forum->Configuration->Frontend->Messages Per Page = 1