This is beautiful, I love the visualization and the information architecture. I hope we in other teams can make some time to study this and understand it better.
On Mon, Apr 24, 2023 at 11:47 AM Timo Tijhof <[email protected]> wrote: > == *What* == > > Flamegraphs provide insight to where and how your MediaWiki component or > extension spends its time. We instrument real web requests on the MediaWiki > app servers at WMF (using php-excimer, a low-overhead sampling profiler) > and continually publish interactive SVG visuals by entrypoint (e.g. > index.php, JobQueue, ResourceLoader load.php, or rest.php API). [1] [2] > > Read more about the Arc Lamp pipeline, introduced by Ori during the 2014 > HHVM migration [3], through our blog post: > > https://techblog.wikimedia.org/2021/03/03/profiling-php-in-production-at-scale/ > > == *What's New* == > > The user interface at https://performance.wikimedia.org/php-profiling/ > has undergone major changes. > > > - Date: You can now choose any date in the last *2+ years*. > Previously, this was limited to 2-3 weeks. In the dropdown menu, choose > "Other", and select any date using the native datepicker. Existing URLs > remain compatible. > - Source: Real-time performance data from the *MediaWiki-on-Kubernetes* > deployment is now available through here (excimer-k8s and > excimer-k8s-wall). While web traffic remains largely on bare metal (except > for test2wiki), internal MediaWiki API traffic is already partly on > Kubernetes. Refer to T333120 > <https://phabricator.wikimedia.org/T333120> for work by SRE ServiceOps > (e.g. CXServer uses MediaWiki-on-Kubernetes). > - Entrypoint: *JobQueue* (RunSingleJob) is now included in the > selector, plus the new detailed breakdowns > <https://phabricator.wikimedia.org/T253679> for *EditAction*, *PreSend*, > and *PostSend* are now promoted here. These were previously available > via the file browser only. > > > == *How* == > > The new interface is an HTML form with vanilla JavaScript to navigate you > to the right SVG. > Details at https://gerrit.wikimedia.org/r/c/performance/docroot/+/908374. > > As before, we promote "good" defaults. You don't have to make any choices > to start exploring the data. Press the big blue button to instantly view > the most recent index.php flamegraph with the default settings. > > -- > Timo Tijhof, > Performance Team, > Wikimedia Foundation. > > [1] > https://wikitech.wikimedia.org/wiki/Performance/Runbook/Arc_Lamp_service > [2] https://www.mediawiki.org/wiki/Excimer > [3] > https://techblog.wikimedia.org/2014/12/29/how-we-made-editing-wikipedia-twice-as-fast/ > _______________________________________________ > Wikitech-l mailing list -- [email protected] > To unsubscribe send an email to [email protected] > https://lists.wikimedia.org/postorius/lists/wikitech-l.lists.wikimedia.org/ >
_______________________________________________ Wikitech-l mailing list -- [email protected] To unsubscribe send an email to [email protected] https://lists.wikimedia.org/postorius/lists/wikitech-l.lists.wikimedia.org/
