Report - Performance Lab 4.0.0

Does Performance Lab work with WordPress 6.9 and PHP 8.1.12? A smoke test was performed on 2025-12-02 22:51:20 UTC.

Summary

Errors

4	PHP deprecation warnings
	No JavaScript exceptions
	All test pages loaded successfully
	No resource errors

Performance

Memory usage: 52.15 KiB
The average PHP memory usage increased by this amount after activating by the plugin.

Page speed impact: insignificant.
The plugin didn't make the site noticeably slower.

Environment

WordPress version	6.9
PHP version	8.1.12
MySQL version	10.6.10
PHP memory limit	512M

Plugin Info

Last updated	2025-12-02T22:34:00+00:00
Active installs	200,000+
WordPress.org page	https://wordpress.org/plugins/performance-lab/
Badges	Get badge code

Pages 4

Plugins ‹ Test site — WordPress

URL	/wp-admin/plugins.php?plugin_status=all&paged=1&s
Requested URL	/wp-admin/plugins.php?action=activate&plugin=performance-lab%2Fload.php&plugin_status=all&paged=1&s&_wpnonce=8de5b4d01d
Aspect	after-activation
HTTP status	200
Load time	0.397 s
Memory usage	3.78 MiB
JS errors	None
Resource errors	None

Tools → Server-Timing

URL	/wp-admin/tools.php?page=perflab-server-timing
Aspect	menu-item
HTTP status	200
Load time	0.269 s
Memory usage	3.76 MiB
JS errors	None
Resource errors	None

Settings → Performance

URL	/wp-admin/options-general.php?page=performance-lab
Aspect	menu-item
HTTP status	200
Load time	0.416 s
Memory usage	4.08 MiB
JS errors	None
Resource errors	None

Test site – Just another WordPress site

URL	/
Aspect	front-page
HTTP status	200
Load time	0.196 s
Memory usage	4.15 MiB
JS errors	None
Resource errors	None

Benchmark

URL	Load time			Memory usage
URL	Inactive	Active	Change	Inactive	Active	Change
/wp-admin/index.php	0.451 s	0.398 s	-0.053 s	3.78 MiB	3.83 MiB	+ 52.8 KiB
/wp-admin/edit.php	0.385 s	0.288 s	-0.097 s	3.78 MiB	3.83 MiB	+ 48.73 KiB
/wp-admin/post-new.php	0.821 s	1.138 s	+0.317 s	6.31 MiB	6.41 MiB	+ 108.14 KiB
/wp-admin/upload.php	0.556 s	0.425 s	-0.131 s	3.74 MiB	3.77 MiB	+ 31.32 KiB
/wp-admin/options-writing.php	0.331 s	0.309 s	-0.022 s	3.71 MiB	3.75 MiB	+ 35.31 KiB
/wp-admin/media-new.php	0.548 s	0.297 s	-0.251 s	3.7 MiB	3.74 MiB	+ 43.51 KiB
/wp-admin/edit-tags.php?taxonomy=category	0.331 s	0.301 s	-0.030 s	3.72 MiB	3.77 MiB	+ 54.18 KiB
/wp-admin/post-new.php?post_type=page	0.718 s	0.813 s	+0.095 s	6.3 MiB	6.4 MiB	+ 101.63 KiB
/wp-admin/options-discussion.php	0.339 s	0.335 s	-0.004 s	3.71 MiB	3.75 MiB	+ 31.81 KiB
/wp-admin/edit-comments.php	0.336 s	0.334 s	-0.002 s	3.73 MiB	3.76 MiB	+ 31.31 KiB
/	0.292 s	0.199 s	-0.093 s	4.12 MiB	4.15 MiB	+ 34.86 KiB
Average	0.464 s	0.440 s	-0.025 s	4.24 MiB	4.29 MiB	+ 52.15 KiB

Code Statistics

Note: Third-party libraries and minified JS/CSS files are excluded from these statistics where possible, so the numbers you see here may be lower than those reported by other tools.

PHP

Language		%	Lines of code	Comment lines	Files
	PHP	97.7%	2,983	1,629	26
	JavaScript	2.3%	69	21	1
Total			3,052	1,650	27

PHP Code Analysis | More results »

Lines of code	2,979
Total complexity	448
Median class complexity	19.5
Median method complexity	2.0
Most complex class	Perflab_Server_Timing
Most complex function	perflab_render_plugin_card()

Classes	2
Methods	15
Functions	89

Additions

Things that the plugin adds to the site. This section is not intended to be comprehensive. The test tool only looks for a few specific types of added content.

No new entries found.

PHP Error Log 4 lines

[02-Dec-2025 22:51:42 UTC] PHP Deprecated:  Function WP_Dependencies-&gt;add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers. in /wp-includes/functions.php on line 6131
[02-Dec-2025 22:51:42 UTC] PHP Deprecated:  Function WP_Dependencies-&gt;add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers. in /wp-includes/functions.php on line 6131
[02-Dec-2025 22:51:52 UTC] PHP Deprecated:  Function WP_Dependencies-&gt;add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers. in /wp-includes/functions.php on line 6131
[02-Dec-2025 22:51:52 UTC] PHP Deprecated:  Function WP_Dependencies-&gt;add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers. in /wp-includes/functions.php on line 6131