Web Performance Calendar day 15 with @nicj.net, @cliffcrocker.bsky.social and @karlijnlowik.bsky.social Löwik presenting an update on W3's RUM Community Group and YOU
calendar.perfplanet.com/2025/rumcg-a...
Built my first federated app. Each new publicly hosted instace announces their existence, and if correctly configured, will be accepted into the mesh of the meshes ... already seeing eight instances in different regions.
Modernized my 25+ year web-hosting habit by Docker'ing all the things. My contribution to a Apache+PHP container: github.com/nicjansma/do...
W3C RUM Community Group's discussion on HTTP Header Adoption (Timing-Allow-Origin and Server-Timing) was fun! Minutes, slides, recording and transcript are here:
w3c-cg.github.io/rum/meetings/
TLDR: Goal to provide guides on adopting headers, a Server-Timing registry, and outreach to popular 3Ps.
It's more like I'm upgrading my server, PHP and MediaWiki versions and need to debug other code and take over ownership of abandoned extensions!
I was this many years old when I finally learned how to debug PHP "properly" (step debugging via XDebug using VSCode on a remote container). Until now I've only ever debugged PHP via echo or error_log() statements. I've been writing PHP code since ~1998. I'm living in the FUTURE everyone! :P
Painful. You have my empathy Adam! But remember they can't take away the YOU from you. Keep focusing on being the amazing person, developer, advocate you are.
Experimentation in the homelab! Switched from #Prometheus + #Thanos to just #VictoriaMetrics (w/ migration of 2yrs of data), much happier! Prom would die on larger dashboards/queries, OOM. VM is 20% of the size of Prom, and queries insanely fast! 30s+ queries in Prom/Thanos, now taking <1s in VM.
Daily uploads and a two year review! rumarchive.com/blog/2025-01... #webperf
My latest post on the Performance Advent Calendar is now live: calendar.perfplanet.com/2024/when-us...
This one talks about the elephant in the rüm of user interactions.
#perfmatters #webperf #rum #ux #cwv #inp
Hail!
In our meeting yesterday, we decided to adopt Element Timing (and the followup Container Timing work) into the working group. CfC coming up!!
We also discussed some upcoming improvements to the crash reporting API (still in incubation).
Minutes: w3c.github.io/web-performa...
So even though you've satisfied all of those conditions, there's a hidden condition of characters you can't use?
You know, because, you can't be trusted to use -
Would you want core web vitals In Safari? Can you help me understand how you would use them and why numbers in one browser isn’t enough?
(These may sound like silly questions, but I’d love to understand *your* specific context and use cases)
Yes! Our RUM customers (mPulse) repeatedly ask for CWV support in Safari and wonder why the data isn't there. They've invested in tracking CWVs because they're easy to understand and help measure UX directly. As sites optimize for them, I don't want that to be biased towards Chrome/Firefox only.
#PerfNow: My favorite nerd week of the year! ❤️
The performance panel custom tracks @jackfranklin.bsky.social talks about open up some exciting possibilities!! It would be neat to standardize the values :D
#perfnow
We've just published a new set of widgets to help analyze your core web vitals on mPulse: blog.akamai-mpulse.com/blog/2024-11... #webperf #perfmatters
Thanks for the shout out! Also, the RUM Archive has 3P resources data, so you can see the history of some of these over time.
rumarchive.com/blog/2023-11...
Took 2 mins at #PerfNow to talk about the RUM Community Group in W3C for anyone doing RUM. It's free and easy to join if you're interested! www.w3.org/community/ru...
Such a great attitude for a team to take
Adored your talk, great job!
A GRAPHIC THAT READS: THE HALLWAY TRACK, BY HENRI HELVETICA. LIVE AT PERFORMANCE NOW, NOVEMBER 14 AND 15, 2024. Avatar of HENRI HELVETICA
Guess who's back? Just getting up at @perfnow.bsky.social. So, I'll be live streaming some interviews from the conference _ LIVE. Lock into the Youtube channel:
www.youtube.com/@henrihelvet...
The all new performance chapter of the 2024 Web Almanac written by Jevgenija Zigisova and @inesakrap.bsky.social
almanac.httparchive.org/en/2024/perf...
Proud of the mPulse team at #PerfNow, our first booth in a few years. Come by to learn more, enter to win one of two Zelda Switchs!
Great start to #perfnow this year with @tammyeverts.bsky.social and @csswizardry.com !
For those of you looking for the general web perf starter pack, here it is! Lots of new folks since last time I shared it
go.bsky.app/RVWSVqe
Great chart to visualize where and how Core Web Vitals are available #PerfNow
First post!
In AMS for #PerfNow. Looking forward today's pre-event WebPerfDays Unconference!