<div style="text-align:center"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw==" fifu-lazy="1" fifu-data-sizes="auto" fifu-data-srcset="https://i0.wp.com/www.awordpresscommenter.com/wp-content/uploads/2023/10/performance-chat-summary-3-october-2023.png?ssl=1&w=75&resize=75&ssl=1 75w, https://i0.wp.com/www.awordpresscommenter.com/wp-content/uploads/2023/10/performance-chat-summary-3-october-2023.png?ssl=1&w=100&resize=100&ssl=1 100w, https://i0.wp.com/www.awordpresscommenter.com/wp-content/uploads/2023/10/performance-chat-summary-3-october-2023.png?ssl=1&w=150&resize=150&ssl=1 150w, https://i0.wp.com/www.awordpresscommenter.com/wp-content/uploads/2023/10/performance-chat-summary-3-october-2023.png?ssl=1&w=240&resize=240&ssl=1 240w, https://i0.wp.com/www.awordpresscommenter.com/wp-content/uploads/2023/10/performance-chat-summary-3-october-2023.png?ssl=1&w=320&resize=320&ssl=1 320w, https://i0.wp.com/www.awordpresscommenter.com/wp-content/uploads/2023/10/performance-chat-summary-3-october-2023.png?ssl=1&w=500&resize=500&ssl=1 500w, https://i0.wp.com/www.awordpresscommenter.com/wp-content/uploads/2023/10/performance-chat-summary-3-october-2023.png?ssl=1&w=640&resize=640&ssl=1 640w, https://i0.wp.com/www.awordpresscommenter.com/wp-content/uploads/2023/10/performance-chat-summary-3-october-2023.png?ssl=1&w=800&resize=800&ssl=1 800w, https://i0.wp.com/www.awordpresscommenter.com/wp-content/uploads/2023/10/performance-chat-summary-3-october-2023.png?ssl=1&w=1024&resize=1024&ssl=1 1024w, https://i0.wp.com/www.awordpresscommenter.com/wp-content/uploads/2023/10/performance-chat-summary-3-october-2023.png?ssl=1&w=1280&resize=1280&ssl=1 1280w, https://i0.wp.com/www.awordpresscommenter.com/wp-content/uploads/2023/10/performance-chat-summary-3-october-2023.png?ssl=1&w=1600&resize=1600&ssl=1 1600w" width="1920" height="857" fifu-data-src="https://i0.wp.com/www.awordpresscommenter.com/wp-content/uploads/2023/10/performance-chat-summary-3-october-2023.png?ssl=1" class="attachment-post-thumbnail size-post-thumbnail wp-post-image" alt="Performance Chat Summary: 3 October 2023" title="Performance Chat Summary: 3 October 2023" srcset="https://i0.wp.com/www.awordpresscommenter.com/wp-content/uploads/2023/10/performance-chat-summary-3-october-2023.png?ssl=1 1920w, https://www.awordpresscommenter.com/wp-content/uploads/2023/10/performance-chat-summary-3-october-2023-300x134.png 300w, https://www.awordpresscommenter.com/wp-content/uploads/2023/10/performance-chat-summary-3-october-2023-1024x457.png 1024w, https://www.awordpresscommenter.com/wp-content/uploads/2023/10/performance-chat-summary-3-october-2023-768x343.png 768w, https://www.awordpresscommenter.com/wp-content/uploads/2023/10/performance-chat-summary-3-october-2023-1536x686.png 1536w" sizes="(max-width: 1920px) 100vw, 1920px" /></div><div>
<p><a href="https://make.wordpress.org/core/2023/10/03/performance-chat-agenda-03-october-2023/">Meeting agenda here</a> and the full chat log is available <a href="https://wordpress.slack.com/archives/C02KGN5K076/p1696345193852719">beginning here on Slack</a>.</p>
<h2 class="wp-block-heading">Announcements</h2>
<ul>
<li>Welcome to our new members of <a href="http://wordpress.slack.com/messages/core-performance/">#core-performance</a></li>
<li>The Plugin Check repo is officially moved to the WordPress organization at <a rel="noreferrer noopener" href="https://github.com/WordPress/plugin-check" target="_blank">https://github.com/WordPress/plugin-check</a></li>
<li>WordPress 6.4 beta 2 is <strong>today</strong></li>
<li><strong>Benchmark results on 6.4 beta 1</strong>
<ul>
<li>Here are some 6.4 Beta 1 benchmarks that <a href="https://profiles.wordpress.org/mukesh27/" class="mention"><span class="mentions-prefix">@</span>mukesh27</a> <a href="https://profiles.wordpress.org/joemcgill/" class="mention"><span class="mentions-prefix">@</span>joemcgill</a> and <a href="https://profiles.wordpress.org/flixos90/" class="mention"><span class="mentions-prefix">@</span>flixos90</a> ran over the past few days (using the <a rel="noreferrer noopener" href="https://github.com/swissspidy/compare-wp-performance" target="_blank">https://github.com/swissspidy/compare-wp-performance</a> tool by <a href="https://profiles.wordpress.org/swissspidy/" class="mention"><span class="mentions-prefix">@</span>swissspidy</a> )
<ul>
<li>Mukesh’s benchmarks: <a rel="noreferrer noopener" href="https://docs.google.com/spreadsheets/d/17-APPEpRTRTT6p2SsGWOm1GhKF_MkoEXnQfC2ZZ-Y30/edit" target="_blank">local testing</a>, <a rel="noreferrer noopener" href="https://github.com/mukeshpanchal27/compare-wp-performance/actions/runs/6323923839" target="_blank">GH Actions</a></li>
<li>Joe’s benchmarks: <a rel="noreferrer noopener" data-hasqtip="102" aria-describedby="qtip-103" href="https://docs.google.com/spreadsheets/d/1JvOSMS8HKnSLDYgzrUgwm_xgA3vtXQ9O7g3yMH8Sqao/edit" target="_blank">local testing</a>, <a rel="noreferrer noopener" href="https://github.com/joemcgill/compare-wp-performance/actions/runs/6339345435" target="_blank">GH Actions</a></li>
<li>Felix’s benchmarks: <a rel="noreferrer noopener" href="https://gist.github.com/felixarntz/ac1ecebe22f3beda970db07440cfdb08" target="_blank">local testing with 2 iterations</a></li>
</ul>
</li>
<li>Results show excellent improvements on the server-side especially for classic themes, with improvements between 15% and 30%</li>
<li>For block themes, server side performance appears to be improved as well, though not as clearly</li>
<li>For overall LCP performance things are looking good for classic themes, but there <em>may</em> be a small regression for block themes. It’s small so we’re not entirely sure about it, but since the server performance is better for block themes, I suspect that there is a regression in client-side performance of block themes
<ul>
<li>For example, here in Joe’s benchmark the LCP-TTFB (client-side) regression for block themes is clearly visible: <a rel="noreferrer noopener" href="https://docs.google.com/spreadsheets/d/1JvOSMS8HKnSLDYgzrUgwm_xgA3vtXQ9O7g3yMH8Sqao/edit" target="_blank">https://docs.google.com/spreadsheets/d/1JvOSMS8HKnSLDYgzrUgwm_xgA3vtXQ9O7g3yMH8Sqao/edit</a>, and same in my benchmarks here <a rel="noreferrer noopener" href="https://gist.github.com/felixarntz/ac1ecebe22f3beda970db07440cfdb08" target="_blank">https://gist.github.com/felixarntz/ac1ecebe22f3beda970db07440cfdb08</a></li>
<li>In Mukesh’s benchmarks it is still slightly positive, which confirms once again that unfortunately at least the Web Vitals tooling still has <em>a lot</em> of variance</li>
<li>Felix thinks we should conduct a few more benchmarks especially focusing on client-side performance of block themes to make more sense of this data. Is there a real regression, or is it just variance and client-side performance is fine?</li>
<li><a href="https://profiles.wordpress.org/joemcgill/" class="mention"><span class="mentions-prefix">@</span>joemcgill</a> was pleasantly surprised to see such large improvements for classic themes. Do we have any assumptions as to what contributed to the large improvements?</li>
<li><a href="https://profiles.wordpress.org/flixos90/" class="mention"><span class="mentions-prefix">@</span>flixos90</a> I honestly don’t know. Neither for what contributed to the large improvements, nor what contributed to the potential client-side regression. I was surprised as well, since I didn’t encounter as major server-side improvements in individual tickets as in 6.3 and 6.2. I don’t know if that’s because we benchmarked fewer PRs manually this time, or if something in the benchmarks shared above is off</li>
</ul>
</li>
</ul>
</li>
</ul>
<h2 class="wp-block-heading" id="focus-group-updates">Priority Projects</h2>
<h3 class="wp-block-heading" id="images">Server Response Time</h3>
<p><a href="https://make.wordpress.org/performance/roadmap-2023/#category-server-response-time">Link to roadmap projects</a></p>
<p>Contributors: <a href="https://profiles.wordpress.org/joemcgill/" class="mention"><span class="mentions-prefix">@</span>joemcgill</a> <a href="https://profiles.wordpress.org/spacedmonkey/" class="mention"><span class="mentions-prefix">@</span>spacedmonkey</a> <a href="https://profiles.wordpress.org/aristath/" class="mention"><span class="mentions-prefix">@</span>aristath</a> <a href="https://profiles.wordpress.org/swissspidy/" class="mention"><span class="mentions-prefix">@</span>swissspidy</a> <a href="https://profiles.wordpress.org/thekt12/" class="mention"><span class="mentions-prefix">@</span>thekt12</a> <a href="https://profiles.wordpress.org/mukesh27/" class="mention"><span class="mentions-prefix">@</span>mukesh27</a></p>
<ul>
<li><a href="https://profiles.wordpress.org/joemcgill/" class="mention"><span class="mentions-prefix">@</span>joemcgill</a> Most of this week has been focused on landing some of the final tickets for 6.4. I did just get some feedback on some of the Theme JSON caching work we started earlier in this cycle, that will carry into 6.5</li>
<li><a href="https://profiles.wordpress.org/mukesh27/" class="mention"><span class="mentions-prefix">@</span>mukesh27</a> has been working on the refactoring of unit tests for issue <a href="https://core.trac.wordpress.org/ticket/22192">#22192</a> , and is pleased to inform that it has now been committed. Additionally, he currently working on a follow-up issue to address backward compatibility (BC) concerns, and will be opening a PR for that shortly.</li>
</ul>
<h3 class="wp-block-heading" id="images">Database Optimization</h3>
<p><a href="https://make.wordpress.org/performance/roadmap-2023/#category-database-optimization">Link to roadmap projects</a></p>
<p>Contributors: <a href="https://profiles.wordpress.org/spacedmonkey/" class="mention"><span class="mentions-prefix">@</span>spacedmonkey</a> <a href="https://profiles.wordpress.org/mukesh27/" class="mention"><span class="mentions-prefix">@</span>mukesh27</a> <a href="https://profiles.wordpress.org/thekt12/" class="mention"><span class="mentions-prefix">@</span>thekt12</a></p>
<ul>
<li><a href="https://profiles.wordpress.org/thekt12/" class="mention"><span class="mentions-prefix">@</span>thekt12</a> updates are as follows:
<ul>
<li>Good for review <a href="https://core.trac.wordpress.org/ticket/59442">#59442</a></li>
<li>Planning to conduct some more research on just the WP_Query part <a href="https://core.trac.wordpress.org/ticket/59492">#59492</a> related to larger issue <a href="https://core.trac.wordpress.org/ticket/59516">#59516</a></li>
</ul>
</li>
<li><a href="https://profiles.wordpress.org/pbearne/" class="mention"><span class="mentions-prefix">@</span>pbearne</a> would like some help testing/measuring the Autoload override code he has been working on
<ul>
<li>seeing values like these
<ul>
<li>63 options loaded/used instead of an all options count of 122</li>
<li>Plus the 63 included 3 options that were not set to be autoload or not in options</li>
<li>We used 77881 bytes saving 2868 bytes from the autoload of 80749 bytes with empty site and default themes</li>
</ul>
</li>
<li>I have created a gist for now<br /><a rel="noreferrer noopener" href="https://gist.github.com/pbearne/ce21417bf5ecfa10b84afc758092cd9f" target="_blank">https://gist.github.com/pbearne/ce21417bf5ecfa10b84afc758092cd9f</a></li>
</ul>
</li>
</ul>
<h3 class="wp-block-heading" id="object-caching">JavaScript &#038; CSS</h3>
<p><a href="https://make.wordpress.org/performance/roadmap-2023/#category-javascript-css">Link to roadmap project</a></p>
<p>Contributors: <a href="https://profiles.wordpress.org/mukesh27/" class="mention"><span class="mentions-prefix">@</span>mukesh27</a> <a href="https://profiles.wordpress.org/10upsimon/" class="mention"><span class="mentions-prefix">@</span>10upsimon</a> <a href="https://profiles.wordpress.org/westonruter/" class="mention"><span class="mentions-prefix">@</span>westonruter</a> <a href="https://profiles.wordpress.org/spacedmonkey/" class="mention"><span class="mentions-prefix">@</span>spacedmonkey</a></p>
<ul>
<li><a href="https://profiles.wordpress.org/westonruter/" class="mention"><span class="mentions-prefix">@</span>westonruter</a> completed his review and amending of the ticket to remove unload event handlers: <a href="https://core.trac.wordpress.org/ticket/55491">#55491</a>
<ul>
<li>Weston approved the pull request but it would really benefit from someone else who has experience with ancient code in WordPress</li>
</ul>
</li>
</ul>
<h3 class="wp-block-heading" id="measurement">Images</h3>
<p><a href="https://make.wordpress.org/performance/roadmap-2023/#category-images">Link to roadmap projects</a></p>
<p>Contributors: <a href="https://profiles.wordpress.org/flixos90/" class="mention"><span class="mentions-prefix">@</span>flixos90</a> <a href="https://profiles.wordpress.org/thekt12/" class="mention"><span class="mentions-prefix">@</span>thekt12</a> <a href="https://profiles.wordpress.org/adamsilverstein/" class="mention"><span class="mentions-prefix">@</span>adamsilverstein</a> <a href="https://profiles.wordpress.org/joemcgill/" class="mention"><span class="mentions-prefix">@</span>joemcgill</a> <a href="https://profiles.wordpress.org/pereirinha/" class="mention"><span class="mentions-prefix">@</span>pereirinha</a></p>
<ul>
<li><a href="https://profiles.wordpress.org/flixos90/" class="mention"><span class="mentions-prefix">@</span>flixos90</a> committed a minor fix in <a href="https://core.trac.wordpress.org/changeset/56756">[56756]</a></li>
</ul>
<h3 class="wp-block-heading" id="javascript">Measurement</h3>
<p><a href="https://make.wordpress.org/performance/roadmap-2023/#category-measurement">Link to roadmap projects</a></p>
<p>Contributors: <a href="https://profiles.wordpress.org/adamsilverstein/" class="mention"><span class="mentions-prefix">@</span>adamsilverstein</a> <a href="https://profiles.wordpress.org/joemcgill/" class="mention"><span class="mentions-prefix">@</span>joemcgill</a> <a href="https://profiles.wordpress.org/mukesh27/" class="mention"><span class="mentions-prefix">@</span>mukesh27</a> <a href="https://profiles.wordpress.org/swissspidy/" class="mention"><span class="mentions-prefix">@</span>swissspidy</a> <a href="https://profiles.wordpress.org/flixos90/" class="mention"><span class="mentions-prefix">@</span>flixos90</a></p>
<ul>
<li>No updates this week</li>
</ul>
<h3 class="wp-block-heading">Ecosystem Tools</h3>
<p><a href="https://make.wordpress.org/performance/roadmap-2023/#category-ecosystem-tools">Link to roadmap projects</a></p>
<p>Contributors: <a href="https://profiles.wordpress.org/mukesh27/" class="mention"><span class="mentions-prefix">@</span>mukesh27</a> <a href="https://profiles.wordpress.org/swissspidy/" class="mention"><span class="mentions-prefix">@</span>swissspidy</a> <a href="https://profiles.wordpress.org/westonruter/" class="mention"><span class="mentions-prefix">@</span>westonruter</a></p>
<ul>
<li>For the Plugin Checker <a href="https://profiles.wordpress.org/mukesh27/" class="mention"><span class="mentions-prefix">@</span>mukesh27</a> has been working on <a rel="noreferrer noopener" href="https://github.com/WordPress/plugin-check/issues/253" target="_blank">issue #253</a>
<ul>
<li><a rel="noreferrer noopener" href="https://github.com/WordPress/plugin-check/pull/282" target="_blank">Add application files support to </a><code>File_Type_Check</code><a rel="noreferrer noopener" href="https://github.com/WordPress/plugin-check/pull/282" target="_blank"> #282</a> – Merged</li>
<li>Open PR <a rel="noreferrer noopener" href="https://github.com/WordPress/plugin-check/pull/285" target="_blank">Add </a><code>Trademarks_Check</code><a rel="noreferrer noopener" href="https://github.com/WordPress/plugin-check/pull/285" target="_blank"> #285</a> – Ready for review</li>
</ul>
</li>
</ul>
<h3 class="wp-block-heading" id="infrastructure">Creating Standalone Plugins</h3>
<p><a href="https://github.com/WordPress/performance/issues/656">Link to GitHub overview issue</a></p>
<p>Contributors: <a href="https://profiles.wordpress.org/flixos90/" class="mention"><span class="mentions-prefix">@</span>flixos90</a> <a href="https://profiles.wordpress.org/mukesh27/" class="mention"><span class="mentions-prefix">@</span>mukesh27</a> <a href="https://profiles.wordpress.org/10upsimon/" class="mention"><span class="mentions-prefix">@</span>10upsimon</a></p>
<ul>
<li><a href="https://profiles.wordpress.org/10upsimon/" class="mention"><span class="mentions-prefix">@</span>10upsimon</a> Regarding <a rel="noreferrer noopener" href="https://github.com/WordPress/performance/issues/651" target="_blank">new UI to manage standalone plugins and built-in modules</a>:
<ul>
<li>Done some slight refactoring to address linting issues</li>
<li>Noticed a bug when there is a plugin update, which I am time boxing to sort out</li>
<li>Appears to be related to global <code>pagenow</code> var, so working on a patch to see if we can safely <em>override</em> this when on the PL > Settings screen</li>
<li>Failing that, we can push back the update functionality to another ticket as per <a href="https://profiles.wordpress.org/flixos90/" class="mention"><span class="mentions-prefix">@</span>flixos90</a> suggestion</li>
</ul>
</li>
</ul>
<h1 class="wp-block-heading">Open Floor</h1>
<ul>
<li>No updates for today</li>
</ul>
<p><strong>Our next chat will be held on <a href="https://www.timeanddate.com/worldclock/fixedtime.html?iso=20231010T1500"><abbr class="date" title="2023-10-10T15:00:00+00:00">Tuesday, October 10, 2023 at 15:00 UTC</abbr></a> in the <a href="https://wordpress.slack.com/messages/core-performance/">#core-performance channel</a> in <a href="https://make.wordpress.org/chat/">Slack</a>.</strong></p>
<p class="o2-appended-tags"><a href="https://make.wordpress.org/core/tag/core-performance/" class="tag"><span class="tag-prefix">#</span>core-performance</a>, <a href="https://make.wordpress.org/core/tag/performance/" class="tag"><span class="tag-prefix">#</span>performance</a>, <a href="https://make.wordpress.org/core/tag/performance-chat/" class="tag"><span class="tag-prefix">#</span>performance-chat</a>, <a href="https://make.wordpress.org/core/tag/summary/" class="tag"><span class="tag-prefix">#</span>summary</a></p>
</div>

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