Joe McGill 1:44 am on August 29, 2024
Tags: core-performance ( 100 ), performance ( 353 ), performance-chat, summary ( 878 )

Performance Chat Summary: 27 August 2024

The full chat log is available beginning here on Slack.

Upcoming WordPress 6.7 release

We reviewed the 6.7 milestone for performance focus tickets.

#61103 (marked as an early ticketticket Created for both bug reports and feature development on the bug tracker.) – @flixos90 had just reviewed, and @pbiron will update the PR.
#61847 – @mukesh27 is working on a PR for this.
@adamsilverstein shared that he had a couple of small AVIF fixes that he’s planning to move to the milestone

Next Performance Lab release

The current milestones can be found at https://github.com/WordPress/performance/milestones, and the release date is Sept 16. @joemcgill questioned whether this date will conflictconflict A conflict occurs when a patch changes code that was modified after the patch was created. These patches are considered stale, and will require a refresh of the changes before it can be applied, or the conflicts will need to be resolved. with WCUS that week.

@adamsilverstein is working on a PR for the Modern Images 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 to include converting upload PNGs in addition to JPEGs that I hope will be ready for the next release.
@thelovekesh is working on Web Worker Offloading(WWO) plugin to make it ready for WPOrg. Ongoing tasks:
- https://github.com/WordPress/performance/issues/1468
- https://github.com/WordPress/performance/issues/1455

Priority Projects

Refer to the overview issues in our GH Project board.

Investigate INP improvements (@adamsilverstein)
- Nothing new, Adam is planning to do a follow up post about INP to the WP developer blogblog (versus network, site)
Improving the calculation of image sizes attributes (@joemcgill)
- @mukesh27 is working on defining the next phase of work related to accounting for ancestor blocks
Enable client side modern image generation (@swissspidy)
- Pascal is working on smaller GB PRs for client-side media, all step by step for easier reviews.
Enhance onboarding experience for Performance Lab
- @flixos90 would like to see this get more focus and asked for folks to give feedback to his proposal in issue 1032.
- @swissspidy suggested that we do more user research during WCUS before spending too much more time on this effort. This was discussed during open floor but no actions were decided.

Open floor

Conversation about priority projects bled over into open floor. No other items were discussed.

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

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

Emily Clarke 4:06 pm on August 20, 2024
Tags: core-performance ( 100 ), performance ( 353 ), performance-chat, summary ( 878 )

Performance Chat Summary: 20 August 2024

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

Announcements

Welcome to our new members of #core-performance
Performance Lab 3.4.0 was released yesterday

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 (6.7)
- Future releases
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)
- Next milestone
Active priority projects
- Project board

WordPress Performance Trac Tickets

There are currently 23 performance issues in 6.7
@westonruter for #61734 I’d appreciate a second pair of eyes to validate or invalidate my findings for adding fetchpriority=low to the 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. module scripts. In theory this should improve performance and I swear I saw it did at first, but then I didn’t see improvement but regressionregression A software bug that breaks or degrades something that previously worked. Regressions are often treated as critical bugs or blockers. Recent regressions may be given higher priorities. A "3.6 regression" would be a bug in 3.6 that worked as intended in 3.5.. Please help with my sanity
@westonruter the auto-sizes ticketticket Created for both bug reports and feature development on the bug tracker. #61847 is still assigned to Future Release – this should be tagged with 6.7 – this has now been completed

Performance Lab Plugin (and other Performance Plugins)

Performance Lab plugin and the following performance plugins:

@westonruter For Embed Optimizer I’m happy to share I finally got the PR in a workable state to reserve space for embeds to reduce (even entirely eliminate) layout shift. I haven’t yet fleshed out the PR description but I did add a before/after videos: https://github.com/WordPress/performance/pull/1373
@westonruter Something else I’m excited about is a PR for Image Prioritizer which adds fetchpriority=low to images which are in the initial viewport but which are not visible, such as when they are in subsequent carousel slides: https://github.com/WordPress/performance/pull/1482

Active Priority Projects

Improving the calculation of image size attributes

@mukesh27 I have been working on the definition for follow-up work to improve the image sizes algorithm. will share more update in upcoming weeks.
- Develop a system to incorporate layout constraints from ancestor blocks (e.g., group, row, columns, etc) into the sizes calculation.

Plugin Check

@mukesh27 The next release for Plugin Check version 1.1.0 is ready, with only one issue remaining. You can check the milestone here: Plugin Check Milestone 1.1.0

Open Floor

@adamsilverstein I have been working on measuring the impact of the features we have been developing by querying public datasets to measure CWV metrics for sites that installed each of our plugins. In my colab, I take each feature (identified by the generator tags we add) and find a set of sites that have enabled that feature. I compare their CWV pass rates to a date before they added the feature, then subtract out the CWV changes from a set of sites that _didn’t_ install the feature.
- Here is the colab for those curious about the queries – https://gist.github.com/adamsilverstein/20fbb28b6db2c280089b79b9fadb2ca1
- The results so far show an improvement across the board – https://gist.github.com/adamsilverstein/0aa9fba8fb7685ebf0224df7eb08079b (Changes are absolute percentage changes in pass rates).
- One caveat is that sites may have installed multiple features/plugins at once and my queries aren’t taking that into account. It would be interesting to see if I can find sites that installed only a single feature to measure the impact in isolation.
@annezazu Another topic/nudge for open floor: Starting the 6.7 roadmap post and wanted to pingPing The act of sending a very small amount of data to an end point. Ping is used in computer science to illicit a response from a target server to test it’s connection. Ping is also a term used by Slack users to @ someone or send them a direct message (DM). Users might say something along the lines of “Ping me when the meeting starts.” to see what might be on ya’ll’s radar. Can you share there with me? I see the above Current release (6.7) focus for now.
- @flixos90 There are probably more items worth including in the roadmap post in https://core.trac.wordpress.org/query?focuses=~performance&milestone=6.7&order=priority, so let’s take a look async and we can share with Anne in the thread
- Also worth checking whether everything we want to land in 6.7 has a ticket in that list
@flixos90 just sharing a brief not really performance-related but potentially interesting query result I implemented yesterday: https://github.com/GoogleChromeLabs/wpp-research/pull/150
This shows that almost 80% of WordPress sites use a “static front pageStatic Front Page A WordPress website can have a dynamic blog-like front page, or a “static front page” which is used to show customized content. Typically this is the first page you see when you visit a site url, like wordpress.org for example.” rather than displaying their “latest posts” on the home page. I believe that’s what most of us would expect in this age, but it begs the question why “latest posts” is still the default for new sites, when it’s only a good default for 20% of sites.

Our next chat will be held on Tuesday, August 27, 2024 at 15:00 UTC in the #core-performance channel in Slack.

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

Emily Clarke 11:53 am on August 20, 2024
Tags: agenda ( 1,045 ), meeting ( 391 ), performance ( 353 ), performance-chat

Performance Chat Agenda: 20 August 2024

Here is the agenda for this week’s performance team meeting scheduled for August 20, 2024 at 15:00 UTC.

Announcements
- Welcome to our new members of #core-performance
- Performance Lab 3.4.0 was released yesterday
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
  - 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 WordPress.org Plugin Directory https://wordpress.org/plugins/ or can be cost-based plugin from a third-party (and other performance plugins) including:
  - Enhanced Responsive Images
  - Embed Optimizer
  - Image Prioritizer
  - Image Placeholders
  - Modern Image Formats
  - Optimization Detective
  - Performant Translations
  - Speculative Loading
- Active priority projects
Open floor
- Update on collecting impact metrics

If you have any topics you’d like to add to this agenda, please add them in the comments below.

This meeting happens in the #core-performance channel. To join the meeting, you’ll need an account on the Make WordPress Slack.

#agenda, #meeting, #performance, #performance-chat

Joe McGill 5:18 pm on August 13, 2024
Tags: core-performance ( 100 ), performance ( 353 ), performance-chat, summary ( 878 )

Performance Chat Summary: 13 August 2024

The full chat log is available beginning here on Slack.

Upcoming Release

The next release for Performance Lab and related performance plugins is scheduled for Monday, August 19 at 1:00 PM EDT

Related milestones

@westonruter shared a pulse check on Monday noting that the milestones are on average 55% complete. During the meeting he mentioned that the Modern Image Formats issues still needs to most eyes.

@flixos90: “It seems there have been quite a few bugs piling up from the picture element support, but I haven’t been able to look closely yet. Is there an overarching theme that these fall into? E.g. ecosystem compatibility, or edge-cases, or compatibility with other image features of the 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?”

@adamsilverstein: “…the picture element support missed a few things we could have caught before launching. we also did already fix a few compatibility issues that would have been hard to catch”

This led to a longer conversation about the goal of experimenting with picture support from a performance point of view.

@flixos90: “My concern with this is mostly about how much of a priority it should be compared to everything else we have on our plate as a team. Of course there’s value in exploring picture element in CoreCore Core is the set of software required to run WordPress. The Core Development Team builds WordPress., but for instance if it doesn’t help much with AVIF, I question that we prioritize it this much. It’s by no means a simple feature to implement and land, and the bugs require a lot of attention that is taken away from the other things we’re working on (e.g. better responsive image sizes handling) which IMO have a greater performance benefit”

Active Priority Projects

Optimization Detective: Server-applied optimizations informed by client-side detection (overview issue)
- @westonruter confirmed that this is mostly complete. He’ll create follow-up issues and close this one.
Improving the calculation of image sizes attributes (overview issue)
- @mukesh27 did not have any updates this week, will share more next week.
- @mukesh27 opened #61847 to propose adding auto-sizes to WP Core
Investigate INP improvements (overview issue)
- @adamsilverstein had no updates, plans to publish a post on make/core next
Enable client side modern image generation (overview issue)
- @swissspidy has been working on this via https://github.com/WordPress/gutenberg/issues/61447
- He’s been working on a draft PR, but needs to revise it for easier reviews.

Open Floor

@clorith raised the following:

“I’m thinking about making a new core ticketticket Created for both bug reports and feature development on the bug tracker. to introduce a Sustainabiliuty classification to the Site Health checks, as some of the performance ones, when there’s no real performance problem as is, but the recommendations would be good for sustainability., Just wanted to voice it with y’all first before I started throginw out ideas to change your classifications”

@flixos90: “Definitely some overlap between the two, but I like the idea. Sustainability is a different motivator than performance and some checks may apply more to one than the other. Either way, it’s a good way to promote certain checks and of course sustainability”

Next step is that @clorith plans to open a ticket with recommendations for which checks to possibly reclassify to get input.

Our next chat will be held on Tuesday, August 20, 2024 at 15:00 UTC in the #core-performance channel in Slack.

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

Emily Clarke 4:02 pm on August 6, 2024
Tags: core-performance ( 100 ), performance ( 353 ), performance-chat, summary ( 878 )

Performance Chat Summary: 6 August 2024

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

Announcements

Welcome to our new members of #core-performance

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 (6.7)
- Future releases
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

There are currently 20 performance issues in 6.7
@joemcgill would love to get a review on #61532 if possible. @adamsilverstein possibly relevant to your interests
- @adamsilverstein Great idea to cache that, will review
@pbearne requested feedback on any tickets in his name please, specifically #61103 which he is aiming to get in early
- @joemcgill aiming to review later this week

Performance Lab Plugin (and other Performance Plugins)

Performance Lab plugin and the following performance plugins:

@mukesh27 has been working on the following
- Modern Image Formats plugin:
- PR #1408 – Picture element: Correct the fallback image – Ready for review
- PR #1437 – Picture element: Full size image is missing in PICTURE > SOURCE srcset (Blocked by above PR 1408)
- Issue #1439 – Picture element: Small image size issues – Open for discussion
@thelovekesh PR for web worker offloading plugin is merged – https://github.com/WordPress/performance/pull/1247
- @westonruter this has not yet been added to wp.org as ideally it would first have some built-in feature to offload a frontend script to the worker. Like offloading gtag. The challenge is that there is no consistent way that other plugins add gtag to the page. However, the output buffer and/or tagtag A directory in Subversion. WordPress uses tags to store a single snapshot of a version (3.6, 3.6.1, etc.), the common convention of tags in version control systems. (Not to be confused with post tags.) visitor infrastructure provided Optimization Detective could be used to rewrite external gtag scripts to use Partytown. This would be another nice cross-plugin integration in Performance Lab, as is also seen in Embed Optimizer and Enhanced Responsive Images.
- @joemcgill Is there a simple example use case that could be used to demo the 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. that developers would need to use to offload their own scripts using this plugin? Maybe a coreCore Core is the set of software required to run WordPress. The Core Development Team builds WordPress. 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. that adds some non-critical JSJS JavaScript, a web scripting language typically executed in the browser. Often used for advanced user interfaces and behaviors.?
- @westonruter Yes, it is in the readme, or at least in the PR description. The readme’s instructions should be fleshed out with the same content as the PR description
- @adamsilverstein We could also document how to leverage with some of the top plugins eg analytics plugins
- @westonruter Yeah. We could look at how the most popular plugins are adding gtag to the page (e.g. Site Kit), and specifically target them.
@westonruter There are quite a few bugs for Modern Image Formats, some of which are listed above, so let’s investigate that
- Otherwise, Modern Image Formats seems like it needs the most attention as of now, given it seems to have the most bugs and support topics.

Active Priority Projects

Improving the calculation of image size attributes

@joemcgill advised that he and @mukesh27 have discussed creating a ticketticket Created for both bug reports and feature development on the bug tracker. to propose adding auto-sizes to core

Plugin Check

@mukesh27 advised that @swissspidy and other contributors are working on an issue for 1.1.0 – https://github.com/WordPress/plugin-check/milestone/13

Open Floor

There were 2 tickets we wanted to discuss today
- #42743
  - @pbearne I have been trying to find a good way to Disable wp_options autoload for inactive widgets. Any suggestions are welcome
  - We can turn it off if wp_use_widgets_block_editor() returns false
    but with the widgets_block_editor code, the inactive widgets are kept with the active
- #60414
  - @joemcgill This came up during Dev Chat last week as well. For this to move forward it really needs at least one committercommitter A developer with commit access. WordPress has five lead developers and four permanent core developers with commit access. Additionally, the project usually has a few guest or component committers - a developer receiving commit access, generally for a single release cycle (sometimes renewed) and/or for a specific component. (likely several) to shepherd it into 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., which includes helping build consensus about any open questions that still need to be resolved.
  - From a Performance Team point of view, we’ve not prioritized it on our roadmap because the performance benefit is theoretical at this point. If someone could show the likely performance benefit of these changes, then it would be worth putting more effort into. As an aside, I do really think WP should implement this personally, but don’t have time myself to take this on.
@joemcgill If we have time, I wanted to ask if we want to have a Performance Team specific table at WCUS this year? I assume yes, but wanted to confirm before letting the organizing team know.
- @adamsilverstein has volunteered to lead the table! (Thanks Adam!)
@joemcgill will be leading this meeting next week

Our next chat will be held on Tuesday, August 13, 2024 at 15:00 UTC in the #core-performance channel in Slack.

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

Emily Clarke 12:22 pm on August 6, 2024
Tags: agenda ( 1,045 ), meeting ( 391 ), performance ( 353 ), performance-chat

Performance Chat Agenda: 6 August 2024

Here is the agenda for this week’s performance team meeting scheduled for August 6, 2024 at 15:00 UTC.

Announcements
- Welcome to our new members of #core-performance
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
  - 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 WordPress.org Plugin Directory https://wordpress.org/plugins/ or can be cost-based plugin from a third-party (and other performance plugins) including:
  - Enhanced Responsive Images
  - Embed Optimizer
  - Image Prioritizer
  - Image Placeholders
  - Modern Image Formats
  - Optimization Detective
  - Performant Translations
  - Speculative Loading
- Active priority projects
Open floor
- #42743 discussion
- #60414 discussion

If you have any topics you’d like to add to this agenda, please add them in the comments below.

This meeting happens in the #core-performance channel. To join the meeting, you’ll need an account on the Make WordPress Slack.

#agenda, #meeting, #performance, #performance-chat

Emily Clarke 3:45 pm on July 30, 2024
Tags: core-performance ( 100 ), performance ( 353 ), performance-chat, summary ( 878 )

Performance Chat Summary: 30 July 2024

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

Announcements

Welcome to our new members of #core-performance
The team has posted the WordPress 6.6 Performance Improvements blogblog (versus network, site) post

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 (6.7)
- Future releases
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

There are currently 18 performance issues in 6.7
@spacedmonkey called out #59516 #57496 and #58001 most of them have pull requests. I am not sure I am going to have time to work on them, but there are nearly there. If anyone want to help get them across the line.

Performance Lab Plugin (and other Performance Plugins)

Performance Lab plugin and the following performance plugins:

@mukesh27 has been working on the following
- Performance Lab plugin:
  - PR #1374 – Autoloaded Options Health Check: Disabled options reappear in Site Health after external update – Merged
- Modern Image Formats plugin:
  - PR #1354 – Picture element: The accurate sizes improvement for images not working – Merged
  - PR #1408 – Picture element: Unit testunit test Code written to test a small piece of code or functionality within a larger application. Everything from themes to WordPress core have a series of unit tests. Also see regression. to check IMG src – Ready for review
  - Open issue Picture element: Full size image is missing in PICTURE > SOURCE srcset
@westonruter Continuing to make progress in Embed Optimizer reserving space for embeds that cause layout shift: https://github.com/WordPress/performance/pull/1373
- Some aspects of it I split into a prerequisite PR which I just merged: https://github.com/WordPress/performance/pull/1411

Active Priority Projects

Improving the calculation of image size attributes

@mukesh27 For Improving the calculation of image size attributes i have been working on:
- PR #1382 – Update wp_calculate_image_sizes to Reflect Changes in sizes attribute
- Issue #1389 – Accurate sizes improvement didn’t account for the disable filterFilter Filters are one of the two types of Hooks https://codex.wordpress.org/Plugin_API/Hooks. They provide a way for functions to modify data of other functions. They are the counterpart to Actions. Unlike Actions, filters are meant to work in an isolated manner, and should never have side effects such as affecting global variables and output. for sizes – Merged

Plugin Check

@mukesh27 advised that @swissspidy and other contributors are working on an issue for 1.1.0 – https://github.com/WordPress/plugin-check/milestone/13

Open Floor

@adamsilverstein I have one update: my PR adding User Timing metrics for the 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. was approved and merged: https://github.com/WordPress/gutenberg/pull/60522 this is hidden behind a debug flag until the API is stable and also only available in the plugin for now

Our next chat will be held on Tuesday, August 6, 2024 at 15:00 UTC in the #core-performance channel in Slack.

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

Emily Clarke 8:44 am on July 30, 2024
Tags: agenda ( 1,045 ), meeting ( 391 ), performance ( 353 ), performance-chat

Performance Chat Agenda: 30 July 2024

Here is the agenda for this week’s performance team meeting scheduled for July 30, 2024 at 15:00 UTC.

Announcements
- Welcome to our new members of #core-performance
- The team has posted the WordPress 6.6 Performance Improvements blogblog (versus network, site) post
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
  - 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 WordPress.org Plugin Directory https://wordpress.org/plugins/ or can be cost-based plugin from a third-party (and other performance plugins) including:
  - Enhanced Responsive Images
  - Embed Optimizer
  - Image Prioritizer
  - Image Placeholders
  - Modern Image Formats
  - Optimization Detective
  - Performant Translations
  - Speculative Loading
- Active priority projects
Open floor

If you have any topics you’d like to add to this agenda, please add them in the comments below.

This meeting happens in the #core-performance channel. To join the meeting, you’ll need an account on the Make WordPress Slack.

#agenda, #meeting, #performance, #performance-chat

Emily Clarke 10:15 am on July 24, 2024
Tags: core-performance ( 100 ), performance ( 353 ), performance-chat, summary ( 878 )

Performance Chat Summary: 23 July 2024

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

Announcements

Welcome to our new members of #core-performance

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 (6.7)
- Future releases
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)
- Enhanced Responsive Images
- Embed Optimizer
- Image Prioritizer
- Image Placeholders
- Modern Image Formats
- Optimization Detective
- Performant Translations
- Speculative Loading
Active priority projects

WordPress Performance Trac Tickets

There are currently 16 performance issues in 6.7
@pbearne I need input on this ticketticket Created for both bug reports and feature development on the bug tracker. as I made opinionated changes as to which option should not be autoloaded #61103
- @joemcgill I plan on digging into that PR to give you feedback, but am going to be out on holiday for a bit. If anyone else has time to look at this in the mean time, please do so.
- @mukesh27 I will take a look this week
- @joemcgill One thing that will be good to understand, is that if we aren’t autoloading options that are only needed in the adminadmin (and super admin), how do we make sure the editor experience isn’t negatively affected. I think you’re already planning on priming all of those options in the admin, but would be good to get some performance measurements of the before/after of both the front end and admin.
- @pbearne I have a patchpatch A special text file that describes changes to code, by identifying the files and lines which are added, removed, and altered. It may also be referred to as a diff. A patch can be applied to a codebase for testing. to load the admin options in back on wp_int

Performance Lab Plugin (and other Performance Plugins)

Performance Lab plugin and the following performance plugins:

@mukesh27 I have been working on PRs that ready for review:
- Performance Lab plugin:
  - PR #1374 – Autoloaded Options Health Check: Disabled options reappear in Site Health after external update
- Modern Image Formats plugin:
  - PR #1354 – Picture element: The accurate sizes improvement for images not working
@westonruter It seems like we’re getting increasing reports of issues with image generation in Modern Image Formats
- In GitHub and support forums
- @westonruter Might be related to the issue of AVIF generation taking a very long time sometimes?
- @joemcgill Ah, I do remember cases a long time ago where image generation could take longer than the max PHPPHP The web scripting language in which WordPress is primarily architected. WordPress requires PHP 5.6.20 or higher timeout on some hosts and result in the attachment data being created in the DB while the actual image generation failed. I wonder if something like that is happening?
- @westonruter That’s being discussed here: https://github.com/WordPress/performance/issues/371
- @adamsilverstein this could also be a support detection issue, (where format support for AVIF gives a false negative or positive), interesting they say it falls back to WebP
- @westonruter I wonder if the AVIF generation should be moved a background process? Use the JPEG immediately upon upload and then use the AVIF once it is available
- @adamsilverstein we already have a way of generating images in multiple passes, but it needs to be able to process one image completely before the timeout
- @joemcgill That’s a good idea. There is prior art for generating missing intermediate sizes that could be referenced.
- @pbearne Idea: we need a long process control for wp-admin that can be used for any task that takes a long time (images gen, post delete, etc.)
- @adamsilverstein https://github.com/WordPress/performance/issues/490 was part of that previous effort, there is also a trac ticket
- @westonruter I thought that was primarily for regenerating the entire media library
- @adamsilverstein yes, but part of that was the ability to regenerate images in i the background #6814 16 year old ticket
- @joemcgill It’s not totally accurate anymore, after #40439
- @adamsilverstein true, we partially solved the issue with that, as long as the user agent remains present to trigger the retries
- @joemcgill I’ve played with using WP_Cron for this a looooooong time ago, but that can cause failures to affect end-user front-end requests, which we’d want to avoid

Active Priority Projects

Improving the calculation of image size attributes

@mukesh27 For Improving the calculation of image size attributes i have been working on:
- PR #1382 – Update wp_calculate_image_sizes to Reflect Changes in sizes attribute
- Issue #1389 – Accurate sizes improvement didn’t account for the disable filterFilter Filters are one of the two types of Hooks https://codex.wordpress.org/Plugin_API/Hooks. They provide a way for functions to modify data of other functions. They are the counterpart to Actions. Unlike Actions, filters are meant to work in an isolated manner, and should never have side effects such as affecting global variables and output. for sizes
- @joemcgill I’m reviewing those this morning

Plugin Check

@swissspidy there is 1 new performance-related check being worked on that’s ready for code review: https://github.com/WordPress/plugin-check/pull/519. There are more PRs some other contributors are working on, but nothing performance-specific.

Open Floor

WordPress 6.6 performance analysis
- @adamsilverstein Yes… I have been working on a post for 6.6 performance changes and will share a draft here for feedback soon!
- one challenge has been identifying the source of the slight regressions we see in 6.6 (the numbers haven’t changed much since I shared results here for an 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). a few weeks ago)
- part of the challenges is tracking changes that originate in the GutenbergGutenberg The Gutenberg project is the new Editor Interface for WordPress. The editor improves the process and experience of creating new content, making writing rich content much simpler. It uses ‘blocks’ to add richness rather than shortcodes, custom HTML etc. https://wordpress.org/gutenberg/ project and are then merged over to coreCore Core is the set of software required to run WordPress. The Core Development Team builds WordPress.. our automated tests haven’t highlighted issues, nor are the Gutenberg performance tests
- some ideas: it might be because the regressions are very small and spread out over a number of commits, or it might be related to the difference in how we are doing automated tests. in case, it points to an area we can improve
- @joemcgill Agreed. There are a number of improvements that we could make to our CI infrastructure in both the GB repo and in Core that would help. We’ve already got https://github.com/WordPress/performance/issues/1380 as a place to discuss a set of improvements we want to focus on next. I’d love to see more discussion there so we can define and prioritize some next steps.
- One of the questions that I still have is whether the benchmarks that we have been taking at the end of each release are providing us with useful info, or if they are obscuring what is really happening in the field. @adamsilverstein I’m curious if we could get some HTTPArchive data after 6.6 has been out a while to see if our lab benchmarks relate to real user data or not.
- @adamsilverstein that is a good point, I’m happy to work on that. we should have enough data in a few months.
- some performance improvements we are adding will really only become apparent in the field data, and our automated testing can’t really measure those

Our next chat will be held on Tuesday, July 30, 2024 at 15:00 UTC in the #core-performance channel in Slack.

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

Emily Clarke 8:48 am on July 23, 2024
Tags: agenda ( 1,045 ), meeting ( 391 ), performance ( 353 ), performance-chat

Performance Chat Agenda: 23 July 2024

Here is the agenda for this week’s performance team meeting scheduled for July 23, 2024 at 15:00 UTC.

Announcements
- Welcome to our new members of #core-performance
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
  - 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 WordPress.org Plugin Directory https://wordpress.org/plugins/ or can be cost-based plugin from a third-party (and other performance plugins) including:
  - Enhanced Responsive Images
  - Embed Optimizer
  - Image Prioritizer
  - Image Placeholders
  - Modern Image Formats
  - Optimization Detective
  - Performant Translations
  - Speculative Loading
- Active priority projects
Open floor
- WordPress 6.6 performance analysis

If you have any topics you’d like to add to this agenda, please add them in the comments below.

This meeting happens in the #core-performance channel. To join the meeting, you’ll need an account on the Make WordPress Slack.

#agenda, #meeting, #performance, #performance-chat

Welcome!

Communication

Upcoming WordPress 6.7 release

Next Performance Lab release

Priority Projects

Open floor

Announcements

Priority Items

WordPress Performance Trac Tickets

Performance Lab Plugin (and other Performance Plugins)

Active Priority Projects

Improving the calculation of image size attributes

Plugin Check

Open Floor

Upcoming Release

Active Priority Projects

Open Floor

Announcements

Priority Items

WordPress Performance Trac Tickets

Performance Lab Plugin (and other Performance Plugins)

Active Priority Projects

Improving the calculation of image size attributes

Plugin Check

Open Floor

Announcements

Priority Items

WordPress Performance Trac Tickets

Performance Lab Plugin (and other Performance Plugins)

Active Priority Projects

Improving the calculation of image size attributes

Plugin Check

Open Floor

Announcements

Priority Items

WordPress Performance Trac Tickets

Performance Lab Plugin (and other Performance Plugins)

Active Priority Projects

Improving the calculation of image size attributes

Plugin Check

Open Floor