Performance Chat Summary: 26 November 2024

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

Announcements

  • Welcome to our new members of #core-performance
  • Last week (Nov 20) saw the release of Performance Lab 3.6.1

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
  • 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 WordPress.org Plugin Directory https://wordpress.org/plugins/ or can be cost-based plugin from a third-party (and other performance plugins)
  • Active priority projects

WordPress Performance Trac Tickets

Performance Lab Plugin (and other Performance Plugins)

  • @westonruter For Image Prioritizer I have a new PR which is preloading LCP background images which are defined in external CSSCSS Cascading Style Sheets. files or in stylesheets in STYLE tags. Up until now, it would only preload background images which were defined inline with style attributes. This was a big limitation since from what I’ve seen page builders very frequently use non-inline styles, for example to be able to do viewport-specific images on mobile and desktop. My finding is that this can improve LCP by 20% on an Elementor-built page! https://github.com/WordPress/performance/pull/1697 
    • This also improves LCP for coreCore Core is the set of software required to run WordPress. The Core Development Team builds WordPress. themes like Twenty Thirteen that have a CSS background image for the headerHeader The header of your site is typically the first thing people will experience. The masthead or header art located across the top of your page is part of the look and feel of your website. It can influence a visitor’s opinion about your content and you/ your organization’s brand. It may also look different on different screen sizes.. I measured a ~9% improvement. The PR is ready for review, but I still need to add tests.

Active Priority Projects

Improving the calculation of image size attributes

Enable Client Side Modern Image Generation

  • No updates this week

Enhance Onboarding Experience of Performance Lab Plugin

Open Floor

  • Agreed for the December 16 release to be skipped and a smaller special release scheduled for Dec 2
    • The next release will be scheduled for January 20, 2025
  • This meeting will not take place on:
    • Tuesday December 24
    • Tuesday December 31
    • It will resume again on Tuesday January 7, 2025

Our next chat will be held on Tuesday, December 3, 2024 at 16:00 UTC in the #core-performance channel in Slack.

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