Performance Lab 1.9.0

Does Performance Lab work with WordPress 6.1.1 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: 41.96 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 version6.1.1
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 3

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=3436ff4248
Aspect after-activation
HTTP status 200
Load time 0.232 s
Memory usage 3.04 MiB
JS errors None
Resource errors None

Settings → Performance

Page screenshot: Settings → Performance
URL /wp-admin/options-general.php?page=perflab-modules
Aspect menu-item
HTTP status 200
Load time 0.145 s
Memory usage 3.07 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 0.185 s
Memory usage 2.99 MiB
JS errors None
Resource errors None


URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php0.270 s0.228 s-0.042 s3.05 MiB3.1 MiB+ 50.2 KiB
/wp-admin/edit.php0.177 s0.175 s-0.002 s3.07 MiB3.12 MiB+ 49.83 KiB
/wp-admin/post-new.php0.755 s0.613 s-0.142 s4.97 MiB5.02 MiB+ 53.4 KiB
/wp-admin/upload.php0.666 s0.514 s-0.152 s2.99 MiB3.02 MiB+ 32.42 KiB
/wp-admin/options-writing.php0.168 s0.204 s+0.036 s2.99 MiB3.01 MiB+ 19.04 KiB
/wp-admin/media-new.php0.268 s0.225 s-0.043 s2.97 MiB3.01 MiB+ 44.61 KiB
/wp-admin/edit-tags.php?taxonomy=category0.185 s0.176 s-0.009 s2.98 MiB3.03 MiB+ 49.78 KiB
/wp-admin/post-new.php?post_type=page0.625 s0.602 s-0.023 s4.96 MiB5.01 MiB+ 48.98 KiB
/wp-admin/options-discussion.php0.194 s0.189 s-0.005 s2.98 MiB3.01 MiB+ 32.88 KiB
/wp-admin/edit-comments.php0.196 s0.191 s-0.005 s3 MiB3.03 MiB+ 32.41 KiB
/0.293 s0.206 s-0.087 s2.94 MiB2.99 MiB+ 47.95 KiB
Average 0.345 s0.302 s-0.043 s3.35 MiB3.4 MiB+ 41.96 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 6,093 3,747 46

PHP Code Analysis | More results »

Lines of code 5,739
Total complexity 1,276
Median class complexity 36.0
Median method complexity 2.0
Most complex class Perflab_SQLite_PDO_Engine
Most complex function webp_uploads_remove_sources_files()
Classes 11
Methods 168
Functions 109


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