Performance Chat Summary: 9 July 2024

Meeting agenda here and the full chat log is available beginning here on Slack.


  • Welcome to our new members of #core-performance
  • The next Performance Lab release will take place on Mon Jul 15, see
  • WordPress 6.6 RCrelease candidate One of the final stages in the version release cycle, this version signals the potential to be a final release to the public. Also see alpha (beta). 3 happening today, ahead of the main release scheduled for Tue Jul 16

Priority Items

  • WordPress performance TracTrac An open source project by Edgewall Software that serves as a bug tracker and project management tool for WordPress. tickets
    • Current release (WP 6.6)
    • Future release
  • Performance Lab pluginPlugin A plugin is a piece of software containing a group of functions that can be added to a WordPress website. They can extend functionality or add new features to your WordPress websites. WordPress plugins are written in the PHP programming language and integrate seamlessly with WordPress. These can be free in the Plugin Directory or can be cost-based plugin from a third-party (and other performance plugins)
    • Auto-Sizes for Lazy-Loaded Images
    • Embed Optimizer
    • Image Prioritizer
    • Image Placeholders
    • Modern Image Formats
    • Optimization Detective
    • Performant Translations
    • Speculative Loading
  • Active priority projects

WordPress Performance Trac Tickets

Performance Lab Plugin (and other Performance Plugins)

  • @westonruter For Embed Optimizer, this PR will be ready for review this morning. I just need to add the description to detail the changes:
    • This includes fundamental enhancements to Optimization Detective to make it much more powerful to be able to make optimizations to a document (e.g. what Embed Optimizer requires)
  • @westonruter I think the plugin with the most need is Modern Image Formats as there are a couple bugs needing to be fixed:
  • @mukesh27 the updated sizes feature from auto-sizes is ready for this release, some final PRs ready for review:
    • PR #1335 – Plugin rename
    • PR #1329 – Merge feature branchbranch A directory in Subversion. WordPress uses branches to store the latest development code for each major release (3.9, 4.0, etc.). Branches are then updated with code for any minor releases of that branch. Sometimes, a major version of WordPress and its minor versions are collectively referred to as a "branch", such as "the 4.0 branch". to trunktrunk A directory in Subversion containing the latest development code in preparation for the next major release cycle. If you are running "trunk", then you are on the latest revision.
  • @joemcgill there’s also a proposed name change for the Auto-Sizes plugin

Active Priority Projects

Improving the calculation of image size attributes

  • Discussed above

Improved template loading

  • @joemcgill The template loading work is mainly wrapped up in 6.6. There are a few minor follow-up issues that I think we’ll continue to track but I’ll work on summarizing next steps and closing up those GH issues.
    • The two things that are on my mind in the short term are:
      • Supporting the Plugin Check project as the Plugin Review team are working to get it integrated into their systems.
      • Improving our performance metrics for both CoreCore Core is the set of software required to run WordPress. The Core Development Team builds WordPress. and GB.

Plugin Check

  • @joemcgill For Plugin Check, I’d like to get more eyes on this conversation., which may end up being a requirement for them to do the integration

Open Floor

  • @mukesh27 Do we have any open issue for Improving our performance metrics for both Core and GB 
  • @joemcgill raised that @swissspidy mentioned one last week that included both misc improvements and shared performance tooling and asked about whether we should separate these issues
    • I do think it would serve us well to put some focus on this early in the 6.7 cycle so we can more easily pinpoint which commits have server timing performance implications. That’s been a big challenge the past 2 releases. (In the GB repo specifically)
  • @pbearne I am thinking of suggesting that WP has an infrastructure release where we update/re-organize the PHPUnit tests etc. as without core committers actively making the changes it will never get done. The performance testing could be part of this
    • @joemcgill I would suggest proposing the infrastructure changes you have in mind and whether those become a release focus or not, could be secondary.

Our next chat will be held on Tuesday, July 16, 2024 at 15:00 UTC in the #core-performance channel in Slack.

#core-performance, #performance, #performance-chat, #summary