Mathieu Lamiot

Celery worker stuck with unack mutex and high network usage with Kombu & Redis

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**Context** We have an app running on Django and Celery 5.3.1, with a Broker on Redis. The producers submit jobs (basically an image and some context) to the workers who...

Optimize Lazyload Background CSS regex finding selectors

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**Context** Following reports of High CPU usage and latency linked to the Lazyload background CSS feature, in the context of [this original issue](https://github.com/wp-media/wp-rocket/issues/6408), we identify a regex that is suffering...

As a support team member, I want to know the last time a RUCSS-related Async action started and ended so that I know if AS is running as exepcted

3

**Context** As part of building a RUCSS Debug tool, some information must be stored while in WP Rocket Debug mode so that it can be monitored easily by the support...

As a support team member, I want to know the last time each RUCSS-related CRON job started and ended so that I know if CRON are running as exepcted

3

**Context** As part of building a RUCSS Debug tool, some information must be stored while in WP Rocket Debug mode so that it can be monitored easily by the support...

As a support team member, I want to know the last time an entry was added to wpr_rucss_used_css table with the status on-submit so that I can check if the RUCSS feature is properly triggered

4

**Context** As part of building a RUCSS Debug tool, some information must be stored while in WP Rocket Debug mode so that it can be monitored easily by the support...

Register only the relevant 3rdParty Theme class in the 3rdPartyTheme provider

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**Context** Reduce the plugin CPU usage: https://wp-media.slack.com/archives/CUT7FLHF1/p1704447166535709 There is only up to one theme used on a WordPress website but we currently register (and load) all 3dr party theme compatiblity...

As a support team member, I want a dedicated interface to have an overview of SaaS usage status from a website

4

**Context** As part of building a RUCSS Debug tool, some information must be stored while in WP Rocket Debug mode so that it can be monitored easily by the support...

Review uses of WP_Query and consider using no_found_rows , update_post_term_cache and update_post_meta_cache to speed up processing and reduce SQL workload

2

**Context** A user suggested the following through the Support: > Your query on line 245 of /inc/functions/posts.php can be made 5-10x faster with no_found_rows => true being added. Since you...

3.16 - Improve the LCP/ATF detection of the beacon script

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**Context** @mostafa-hisham already tried to run an equivalent of the beacon script on the SaaS and prepared some enhancements to make the script more reliable, more efficient and accurate: see...

Preload adaptative batch

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## Description When preparing preload batches, the batch size will be adapted based on the average duration of a request to avoid flooding servers with requests if they take too...