Performance Chat Summary: 25 October 2022

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

Announcements

• @mxbclang: Upcoming time change
  • Europe changes w/c 30 October before US does – Nov 1 meeting will be one hour later at Tuesday, November 1, 2022 at 12:00 PM EDT
  • US changes w/c 6 November – meeting will shift ahead by one hour to stay at our regular time, so Nov 8 meeting will be at Tuesday, November 8, 2022 at 10:00 AM EST

Focus area updates

• @mxbclang: Results of focus area updates vote
  • Added new Database focus area – see GH label and Project
  • Renamed JavaScript focus area to JS & CSS – see GH label and Project
  • Removed Site Health focus area – added “LEGACY” to GH label and Project and moved all active issues to an appropriate new focus area
  • Working on adding a list of focus areas to the Handbook
  • Call for leads for Database – @olliejones volunteered! Will update GH accordingly

Images

@adamsilverstein @mikeschroder

GitHub project

• @mxbclang: Working on changing the image quality for WebPs in Performance Lab from 86 to 82: https://github.com/WordPress/performance/issues/563
• @pbearne: Will investigate https://github.com/WordPress/performance/issues/562 this week

Feedback requested

• See above
• Needs Discussion (10 issues)
• Needs Review (1 issue)

Object Cache

@tillkruess @spacedmonkey

GitHub project

• No updates

Feedback requested

• See above
• Needs Discussion (4 issues)
• Needs Review (1 issue)

Measurement

N/A

GitHub project

• We’re seeking 1-2 POCs for this group; if you’re interested, please comment here or ping in Slack
• @mxbclang: Work continuing on defining the Plugin Checker plugin and getting close to engineering; more updates soon

Feedback requested

• Needs Discussion (5 issues)
• Needs Review (1 issue)

JS & CSS

@aristath @sergiomdgomes

GitHub project

• No updates

Feedback requested

• Tree-shaking block styles on the frontend #41020
• Needs Discussion (4 issues)
• Needs Review (2 issues)

Database

@olliejones

GitHub project

• No updates

Feedback requested

• Needs Discussion (2 issues)
• Needs Review (2 issues)

Infrastructure

@flixos90

GitHub project

• @flixos90: Planning to get back to the Server-Timing API work this week and reviewing focus area updates in https://github.com/WordPress/performance/pull/566 today

Feedback requested

• See above
• Needs Discussion (6 issues)
• Needs Review (3 issues)

Open Floor

• @flixos90: Identified and validated the main cause of the regression with @spacedmonkey and it has been fixed. Will run another iteration of the same analysis for 6.1-RC3 today or tomorrow to verify that results have improved.
  • @olliejones: What was it?
  • @flixos90: Was caused by a bug in https://core.trac.wordpress.org/ticket/39210. Research has not yet been published as wanted to see how the situation evolves, but fair to say that we got the perfect outcome and it shows how important performance analyses are. Will write a summary with concrete numbers up next week and publish after 6.1 launch.

Our next chat will be held on Tuesday, November 1, 2022 at 12pm EDT in the #core-performance channel in Slack.

#core-js, #core-media, #performance, #performance-chat, #summary, #hosting-community

#meta