Remove Server-Timing metric for the autoloaded options query time #1456
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Summary
The Server-Timing metric to capture the time that the autoloaded options query takes was initially introduced primarily to get a better idea for how severe the problem of autoloading options is across WordPress sites. This research was completed more than a year ago and has since already led to several WP core projects and enhancements, see e.g. https://make.wordpress.org/core/2024/06/18/options-api-disabling-autoload-for-large-options/.
At this point, there's no longer a good reason to keep this very specific Server-Timing metric in the Performance Lab plugin, so we can remove it - particularly since it's now slightly incorrect given that WordPress 6.6 introduced additional autoload values than
yes
that would need to be considered. It's not worth updating this though, it just made me remember this existed and should probably be removed now.