Performance Lab 3.1.0

Does Performance Lab work with WordPress 6.5.3 and PHP 8.1.12? A smoke test was performed on .


No PHP errors, warnings or notices
No JavaScript exceptions
All test pages loaded successfully
No resource errors
Looks good! No problems were detected.

Memory usage: 39.43 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.

WordPress version6.5.3
PHP version8.1.12
MySQL version10.6.10
PHP memory limit512M
Plugin Info
Last updated
Active installs 100,000+ page

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Pages 4

Plugins ‹ Test site — WordPress

Page screenshot: 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=c4eafa2246
Aspect after-activation
HTTP status 200
Load time 0.506 s
Memory usage 3.42 MiB
JS errors None
Resource errors None

Tools → Server-Timing

Page screenshot: Tools → Server-Timing
URL /wp-admin/tools.php?page=perflab-server-timing
Aspect menu-item
HTTP status 200
Load time 0.157 s
Memory usage 3.4 MiB
JS errors None
Resource errors None

Settings → Performance

Page screenshot: Settings → Performance
URL /wp-admin/options-general.php?page=performance-lab
Aspect menu-item
HTTP status 200
Load time 0.526 s
Memory usage 3.81 MiB
JS errors None
Resource errors None

Test site – Just another WordPress site

Page screenshot: Test site – Just another WordPress site
Aspect front-page
HTTP status 200
Load time 0.230 s
Memory usage 3.41 MiB
JS errors None
Resource errors None


URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php0.392 s0.320 s-0.072 s3.44 MiB3.49 MiB+ 52.56 KiB
/wp-admin/edit.php0.222 s0.205 s-0.017 s3.46 MiB3.51 MiB+ 52.56 KiB
/wp-admin/post-new.php0.946 s0.587 s-0.359 s5.59 MiB5.64 MiB+ 55.27 KiB
/wp-admin/upload.php0.602 s0.478 s-0.124 s3.38 MiB3.41 MiB+ 35.16 KiB
/wp-admin/options-writing.php0.235 s0.210 s-0.025 s3.37 MiB3.4 MiB+ 27.12 KiB
/wp-admin/media-new.php0.311 s0.254 s-0.057 s3.35 MiB3.4 MiB+ 47.34 KiB
/wp-admin/edit-tags.php?taxonomy=category0.200 s0.196 s-0.004 s3.37 MiB3.42 MiB+ 52.52 KiB
/wp-admin/post-new.php?post_type=page0.618 s0.580 s-0.038 s5.59 MiB5.63 MiB+ 50.86 KiB
/wp-admin/options-discussion.php0.332 s0.476 s+0.144 s3.36 MiB3.39 MiB+ 35.65 KiB
/wp-admin/edit-comments.php0.253 s0.221 s-0.032 s3.39 MiB3.43 MiB+ 35.15 KiB
/0.354 s0.209 s-0.145 s3.42 MiB3.41 MiB- 10.5 KiB
Average 0.406 s0.340 s-0.066 s3.79 MiB3.83 MiB+ 39.43 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.

Language % Lines of code Comment lines Files
Total 2,107 1,227 19

PHP Code Analysis | More results »

Lines of code 2,107
Total complexity 349
Median class complexity 17.5
Median method complexity 2.0
Most complex class Perflab_Server_Timing
Most complex function perflab_render_plugin_card()
Classes 2
Methods 13
Functions 72


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

The log file is empty.

See also: All tests for this plugin, How to Hide Performance Lab Admin Menus