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avatar WeibelMarc
WeibelMarc
1 Sep 2022

Steps to reproduce the issue

Apply the 4.21 Joomla update to a 4.20 website.
Compare the same pages between a 4.20 and a 4.21 instances.
For the same page (back-end or front-end, 4.21 takes 7 seconds more to display a page : SpeedIndex 9 seconds instead of 2 seconds.

Expected result

Same performance with 4.21 as with 4.20

Actual result

7 seconds more to display a page.

System information (as much as possible)

PHP 7.4 (switch t PHP 8.1 is not possible as long as there are 3.9 websites on the same server).
Same behaviour with or without Page Caching.
joomla-421-performance-issue-12-seconds
The attached screenshot is from a development website not fully optimized.

Additional comments

The server administator has checked the logs and there is no server issue.
I believe it, because another website (Joomla 3.9) is runing on the same server with fantastic performances (Lighthouse SpeedIndex <2 seconds for all pages).

avatar WeibelMarc WeibelMarc - open - 1 Sep 2022
avatar joomla-cms-bot joomla-cms-bot - change - 1 Sep 2022
Labels Added: No Code Attached Yet
avatar joomla-cms-bot joomla-cms-bot - labeled - 1 Sep 2022
avatar richard67
richard67 - comment - 1 Sep 2022

Please check pull request #38664 and the correspoinding issue #38662 . Does the problem disappear if you disable the Webauthn system plugin? If yes, it is the same issue. In this case please close your issue because ita duplicate report. And if you can, test the pull request.

In general it would be helpful if people would have a look if an issue has already been reported before open the 99th duplicate issue for it.

avatar WeibelMarc
WeibelMarc - comment - 1 Sep 2022

Hi, Many thanks, your are right, turning off the Webauthn plugin solves the issue.
About your sentence : In general it would be helpful if people would have a look if an issue has already been reported before open the 99th duplicate issue for it.
I made several attempts to find existing issues, but the issue #38664 was not among the search results.
I was searching for 'performance' and 'response time' whereas the issue #38664 was about 'delay'.
Even if I had found this problem description, I would not have understood that it is related to the Webauth plugin.
I close the issue. Thanks again for the solution.

avatar WeibelMarc WeibelMarc - change - 1 Sep 2022
Status New Closed
Closed_Date 0000-00-00 00:00:00 2022-09-01 14:09:07
Closed_By WeibelMarc
avatar WeibelMarc WeibelMarc - close - 1 Sep 2022
avatar richard67
richard67 - comment - 1 Sep 2022

@WeibelMarc Sorry, was not my intention to appear rude. Thanks for checking.

avatar WeibelMarc
WeibelMarc - comment - 1 Sep 2022

You are welcome. I just wanted to show my goodwill. Best regards.

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