Swift Performance Lite 2.0.7

Does Swift Performance Lite work with WordPress 5.1.1 and PHP 7.0.16? A smoke test was performed on .

Summary

Errors
4PHP warnings
2JavaScript exceptions
All test pages loaded successfully
No resource errors
Performance

Memory usage: 603.07 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 version5.1.1
PHP version7.0.16
MySQL version5.7.17
PHP memory limit256M
Plugin Info
Last updated
Active installs 10,000+
WordPress.org page https://wordpress.org/plugins/swift-performance-lite/
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Pages 6

Swift Performance Lite setup

Page screenshot: Swift Performance Lite setup
URL /wp-admin/tools.php?page=swift-performance&subpage=setup
Requested URL /wp-admin/plugins.php?action=activate&plugin=swift-performance-lite%2Fperformance.php&plugin_status=all&paged=1&s&_wpnonce=66417a77c0
Aspect after-activation
HTTP status 200
Load time 0.522 s
Memory usage 3.96 MiB
JS errors None
Resource errors None

Tools → Swift Performance Lite

Page screenshot: Tools → Swift Performance Lite
URL /wp-admin/tools.php?page=swift-performance
Aspect menu-item
HTTP status 200
Load time 0.537 s
Memory usage 4.44 MiB
JS errors None
Resource errors None

Test site – Just another WordPress site

Page screenshot: Test site – Just another WordPress site
URL /
Aspect front-page
HTTP status 200
Load time 0.469 s
Memory usage 3.47 MiB
JS errors None
Resource errors None

Dashboard ‹ Test site — WordPress

Page screenshot: Dashboard ‹ Test site — WordPress
URL /wp-admin/index.php
Aspect new-meta-boxes
HTTP status 200
Load time 0.391 s
Memory usage 4.33 MiB
JS errors None
Resource errors None

Add New Post ‹ Test site — WordPress

Page screenshot: Add New Post ‹ Test site — WordPress
URL /wp-admin/post-new.php
Aspect new-meta-boxes
HTTP status 200
Load time 1.226 s
Memory usage 5.49 MiB
JS errors
[
    {
        "message": "TypeError: jQuery(...).pointer is not a function\n    at pointers (/wp-content/plugins/swift-performance-lite/js/scripts.js?ver=2.0.7:712:26)\n    at dispatch (/wp-admin/load-scripts.php?c=0&load%5B%5D=jquery-core,jquery-migrate,utils,moxiejs,plupload&ver=5.1.1:3:12444)\n    at r.handle (/wp-admin/load-scripts.php?c=0&load%5B%5D=jquery-core,jquery-migrate,utils,moxiejs,plupload&ver=5.1.1:3:9173)",
        "trace": null,
        "code": null
    }
]
Resource errors None

Add New Page ‹ Test site — WordPress

Page screenshot: Add New Page ‹ Test site — WordPress
URL /wp-admin/post-new.php?post_type=page
Aspect new-meta-boxes
HTTP status 200
Load time 0.995 s
Memory usage 5.47 MiB
JS errors
[
    {
        "message": "TypeError: jQuery(...).pointer is not a function\n    at pointers (/wp-content/plugins/swift-performance-lite/js/scripts.js?ver=2.0.7:712:26)\n    at dispatch (/wp-admin/load-scripts.php?c=0&load%5B%5D=jquery-core,jquery-migrate,utils,moxiejs,plupload&ver=5.1.1:3:12444)\n    at r.handle (/wp-admin/load-scripts.php?c=0&load%5B%5D=jquery-core,jquery-migrate,utils,moxiejs,plupload&ver=5.1.1:3:9173)",
        "trace": null,
        "code": null
    }
]
Resource errors None

Benchmark

URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php0.301 s0.371 s+0.070 s3.29 MiB4.33 MiB+ 1.05 MiB
/wp-admin/edit.php0.283 s0.201 s-0.082 s3.32 MiB3.87 MiB+ 566.17 KiB
/wp-admin/post-new.php1.142 s1.123 s-0.019 s4.92 MiB5.49 MiB+ 580.11 KiB
/wp-admin/upload.php0.587 s0.361 s-0.226 s3.15 MiB3.7 MiB+ 561.98 KiB
/wp-admin/options-writing.php0.218 s0.177 s-0.041 s3.14 MiB3.69 MiB+ 560.95 KiB
/wp-admin/media-new.php0.265 s0.269 s+0.004 s3.13 MiB3.68 MiB+ 560.95 KiB
/wp-admin/edit-tags.php?taxonomy=category0.272 s0.245 s-0.027 s3.17 MiB3.73 MiB+ 566.45 KiB
/wp-admin/post-new.php?post_type=page1.164 s1.048 s-0.116 s4.91 MiB5.47 MiB+ 572.2 KiB
/wp-admin/options-discussion.php0.271 s0.272 s+0.001 s3.14 MiB3.69 MiB+ 560.97 KiB
/wp-admin/edit-comments.php0.302 s0.255 s-0.047 s3.24 MiB3.77 MiB+ 536.25 KiB
/0.351 s0.296 s-0.055 s2.98 MiB3.47 MiB+ 495.38 KiB
Average 0.469 s0.420 s-0.049 s3.49 MiB4.08 MiB+ 603.07 KiB

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.

Database Tables 1

Options wp_options 4

Meta Boxes

{
    "dashboard": {
        "swift_dashboard_widget": {
            "title": "Swift Performance",
            "context": "normal"
        }
    },
    "post": {
        "swift_performance_meta_box": {
            "title": "Swift Performance",
            "context": "normal"
        }
    },
    "page": {
        "swift_performance_meta_box": {
            "title": "Swift Performance",
            "context": "normal"
        }
    }
}

PHP Error Log 4 lines

[17-Mar-2019 11:33:57 UTC] PHP Warning:  call_user_func_array() expects parameter 1 to be a valid callback, class 'Swift_Performance_Cache' does not have a method 'clear_cache_after_post' in /wp-includes/class-wp-hook.php on line 288
[17-Mar-2019 11:34:00 UTC] PHP Warning:  call_user_func_array() expects parameter 1 to be a valid callback, class 'Swift_Performance_Cache' does not have a method 'clear_cache_after_post' in /wp-includes/class-wp-hook.php on line 288
[17-Mar-2019 11:34:03 UTC] PHP Warning:  call_user_func_array() expects parameter 1 to be a valid callback, class 'Swift_Performance_Cache' does not have a method 'clear_cache_after_post' in /wp-includes/class-wp-hook.php on line 288
[17-Mar-2019 11:34:05 UTC] PHP Warning:  call_user_func_array() expects parameter 1 to be a valid callback, class 'Swift_Performance_Cache' does not have a method 'clear_cache_after_post' in /wp-includes/class-wp-hook.php on line 288
See also: All tests for this plugin, How to Hide the "Swift Performance" Admin Menu