Performance Chat Summary: 13 February 2024

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


  • Welcome to our new members of #core-performance
  • Release 2.9.0 of the 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 is scheduled for Monday February 19
  • Call for opinions on the naming of the ‘Image Loading Optimizations’ plugin [see here]

Priority Projects

Server Response Time

Notes from today’s meeting:

  • @thekt12 This is something I was working on, new changes has caused some test to fail. The issue is with older test cases. I’ll give a final look tomorrow
  • @joemcgill I ran some profiling on the improvements we made to blockBlock Block is the abstract term used to describe units of markup that, composed together, form the content or layout of a webpage using the WordPress editor. The idea combines concepts of what in the past may have achieved with shortcodes, custom HTML, and embed discovery into a single consistent API and user experience. varations (#59969) and am showing that this has made a noticeable reduction to server response times, e.g. ~5-7%
  • @joemcgill Yesterday, I also identified an issue with the new Plugin Dependencies feature that was negatively impacting server timing. #60518 is fixed for betaBeta A pre-release of software that is given out to a large group of users to trial under real conditions. Beta versions have gone through alpha testing in-house and are generally fairly close in look, feel and function to the final product; however, design changes often occur as part of the process. 1 and it looks like we’ve mostly recovered from the regressions that were previously discovered, but we’ll take new benchmarks after Beta 1 is released today

Database Optimization

Notes from today’s meeting:

  • No updates this week

JavaScriptJavaScript JavaScript or JS is an object-oriented computer programming language commonly used to create interactive effects within web browsers. WordPress makes extensive use of JS for a better user experience. While PHP is executed on the server, JS executes within a user’s browser. & CSSCSS Cascading Style Sheets.

  • Link to the GitHub project board
  • Contributors: @mukesh27 @flixos90 @westonruter @thelovekesh
  • Projects from the 2024 roadmap:
    • INP opportunities research
    • Interactivity APIAPI An API or Application Programming Interface is a software intermediary that allows programs to interact with each other and share data in limited, clearly defined ways.
    • Speculative prerendering
    • Embed Optimizer

Notes from today’s meeting:


Notes from today’s meeting:


Notes from today’s meeting:

  • @joemcgill Nothing specific to report against those milestones. Now that we’re getting into the part of the release cycle where we’ll be doing lots of benchmarks, I suspect we’ll identify some opportunities to streamline things a bit. I also think that @oandregal was working on some improvements to the GB tests that would have caught some regressions that were not caught until after the sync. I’d be curious to know if there are ways we can support that work for the future?
  • @joemcgill Some initial performance benchmarks for 6.5-beta1 against 6.4.3, for anyone interested:

Ecosystem Tools

  • Link to the GitHub repo for Plugin Checker
  • Contributors: @mukesh27 @swissspidy
  • Projects from the 2024 roadmap:
    • Creating standalone plugins milestone 2
    • Plugin checker
    • Reusable testing environment

Notes from today’s meeting:

Open Floor

  • Suggestion from @joemcgill and @swissspidy to rethink the structure of the chat to align with the Core Dev Chat
    • For the past couple of weeks, the Core Dev-chat has attempted to spend more time synchronously discussing a proposal or pending issue, and having most updates linked in the agenda with the expectation that folks are reading the information ahead of the meeting. So far, it’s led to more engaging chats. Perhaps there are ways to do something similar here?
  • @clarkeemily is away on holiday next week, so @joemcgill will run the chat

Our next chat will be held on Tuesday, February 20, 2024 at 16:00 UTC in the #core-performance channel in Slack.

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