bobbingwide
commented
3 years ago Here's a summary of the query elapsed time in my development machine when Saving the post that contains over a hundred image links.
The overall elapsed time for the Save was 2.88 seconds.
| Function | Count | Elapsed |
|---|---|---|
| Total | 354 | 1.4749894142151 |
| Yoast\WP\Lib\ORM::execute | 259 | 1.2082939147949 |
| add_option | 1 | 0.11339902877808 |
| wp_insert_post | 2 | 0.030858039855957 |
| wp_update_site | 2 | 0.017335176467896 |
| update_option | 2 | 0.015997886657715 |
| add_metadata | 2 | 0.015048265457153 |
| wp_load_alloptions | 1 | 0.012069940567017 |
| update_metadata | 5 | 0.0091807842254639 |
| delete_metadata | 20 | 0.0089242458343506 |
| WP_Term_Query::get_terms | 8 | 0.0055749416351318 |
| update_meta_cache | 8 | 0.0054419040679932 |
| wp_load_core_site_options | 1 | 0.0039241313934326 |
| get_option | 15 | 0.003838062286377 |
| WP_User::get_data_by | 1 | 0.0037198066711426 |
| WP_Site_Query::get_site_ids | 1 | 0.0036501884460449 |
| WP_Post::get_instance | 4 | 0.002918004989624 |
| _prime_post_caches | 1 | 0.0026938915252686 |
| get_network_option | 6 | 0.0025839805603027 |
| WP_Query::get_posts | 3 | 0.0023701190948486 |
| delete_option | 3 | 0.0017881393432617 |
| _update_post_term_count | 2 | 0.0016560554504395 |
| term_exists | 1 | 0.0011382102966309 |
| get_comment_count | 1 | 0.001129150390625 |
| wp_set_object_terms | 1 | 0.00034308433532715 |
| _prime_site_caches | 1 | 0.00032401084899902 |
| wp_unique_post_slug | 1 | 0.00028514862060547 |
| WP_Site::get_instance | 1 | 0.0002751350402832 |
| clean_term_cache | 1 | 0.0002281665802002 |
The report is grouped by calling function/method. It's automatically produced as a trace record at shutdown.
C:\apache\htdocs\wordpress\wp-content\plugins\oik-bwtrace\includes\oik-actions.php(350:0) bw_trace_saved_queries_grouped_by_function(1)
37 0 2020-11-20T15:20:10+00:00 2.875893 0.000800 cf=shutdown 9917 354 964 10485760/12582912 256M
Grouped by function 
Djennez
Please give us a description of what happened.
When Saving updates to a post my colleague noticed that Updating was taking a very long time. We traced the SQL execution time during the save. WordPress SEO was using 12 seconds.
I reproduced the problem in my development environment.
The total execution time of SQL queries run by WordPress SEO was 1.20 seconds of total SQL query execution time of 1.30.
This particular post has 120 links to external images.
Everytime the post is saved, the
wp_yoast_seo_linksare being deleted and re-inserted, even when the only change was to some text.Example HTML for one of the images.
I believe there are significant opportunities to improve the performance by reducing the number of SQL queries being performed.
Please describe what you expected to happen and why.
The time to perform the update should be minimal.
How can we reproduce this behavior?
Using a tool that can log SQL execution for the save request (*)
where $POST contains
action=editpostrepeat the experiment and summarise the results.
Technical info
In my development environment I was using the block editor in Gutenberg and subsequently just core. In the live site the Classic editor was being used.
Used versions
(*) I used my plugin oik-bwtrace to trace the server activity including saved queries.