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

Announcements

• Welcome to our new members of #core-performance
• 3.1.0 launched on June 6 to include new performance plugin assets
• Early WordPress 6.6 Beta 1 performance results [GitHub issue]
  • Early investigations did NOT show a regression at all, but instead shows that 6.6 Beta 1 is improved from 6.5.3 (conversation to be continued on the GitHub issue)
• Contributor Day at WordCamp Europe, Turin, Italy on Thursday June 13

Priority Items

• WordPress performance Trac tickets
  • Current release (WP 6.6)
• Performance Lab plugin (and other performance plugins)
  • Auto-Sizes for Lazy-Loaded Images
  • Embed Optimizer
  • Fetchpriority
  • Image Placeholders
  • Modern Image Formats
  • Optimization Detective
  • Performant Translations
  • Speculative Loading
• Active priority projects

WordPress Performance Trac Tickets

• 5 open tickets still in this release milestone
• @joemcgill I plan on going through these and trying to close out what we can later today. #53167 is ready for commit but I’m unsure if @adamsilverstein or @spacedmonkey are planning to take care of that one
• @thekt12 New PR for #57789 will address remainder of #59600

Performance Lab Plugin (and other Performance Plugins)

• Performance Lab plugin and the following performance plugins:
  • Auto-sizes for Lazy-loaded Images
  • Embed Optimizer
  • Fetchpriority
  • Image Placeholders
  • Modern Image Formats
  • Optimization Detective (Developer Preview)
  • Performant Translations
  • Speculative Loading

• @mukesh27 PR that ready for review:
  • PR #1298 – Audit Autoloaded Options Site Health should extend Core’s check if available
• @joemcgill Also worth noting that Chrome 126 is scheduled to ship today with auto-sizes support turned on, so we should be able to get better testing feedback soon from folks using that feature plugin.
  • @westonruter opened https://github.com/WordPress/performance/pull/1296 in order to do a quick minor release of Optimization Detective and could use reviews

Active Priority Projects

Improving the calculation of image size attributes

• @mukesh27 has been working on improved image sizes algorithm
  • PRs merged:
    • PR #1250 – Initial implementation of improved image sizes algorithm
  • PRs ready for review:
    • PR #1290 – improved image sizes for left/right alignment
    • PR #1252 – Use correct sizes for small images

Optimized Autoloaded Options

• @joemcgill Made a few updates to the dev-note draft based on feedback from @peterwilsoncc yesterday. I think it’s ready to publish at this point. @pbearne will create a draft post

Improved template loading

• @thekt12 I have raised a new bug #61405 (with a POC that currently breaks some tests ). Same pattern was also observed in WP_Theme_JSON_Data::$theme_json, but I am not sure of the performance impact it will have. PR#6781 will address the remainder of #57789 and #59600 ; estimated to give at least 3% improvement.

Open Floor

• @joemcgill This issue has been flagged as something that could use help investigating: https://github.com/WordPress/gutenberg/issues/10169
  • Good suggested ticket for contributor day!

Our next chat will be held on Tuesday, June 18, 2024 at 15:00 UTC in the #core-performance channel in Slack.

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