Sharing the quiet part out loud: working on a few things, and restarting #100DaysOfPerf where I left off very shortly. BRB!
April 11, 2025 at 10:03 PM
Sharing the quiet part out loud: working on a few things, and restarting #100DaysOfPerf where I left off very shortly. BRB!
🪫📲 Day 024 #100DaysOfPerf (since I skipped ayer): in a related follow up to Day 023, this is an @oreilly.bsky.social Webcast of the white paper I shared. Again, slightly dated, but we've added more resources to the web since, and the need to parse remains.
🎥 www.youtube.com/watch?v=_uv0...
🎥 www.youtube.com/watch?v=_uv0...
O'Reilly Webcast: Who Killed My Battery - Analyzing Mobile Browser Energy Consumption
YouTube video by O'Reilly
www.youtube.com
March 30, 2025 at 8:34 PM
🪫📲 Day 024 #100DaysOfPerf (since I skipped ayer): in a related follow up to Day 023, this is an @oreilly.bsky.social Webcast of the white paper I shared. Again, slightly dated, but we've added more resources to the web since, and the need to parse remains.
🎥 www.youtube.com/watch?v=_uv0...
🎥 www.youtube.com/watch?v=_uv0...
Day 023 #100DaysOfPerf: Some years back, I read this white paper on mobile battery consumption, and it always sat with me. Essentially, it presented a correlation between resource parsing and battery usage. 🔋 tech has improved so curious what it's like today.
crypto.stanford.edu/~dabo/papers...
crypto.stanford.edu/~dabo/papers...
March 30, 2025 at 7:27 PM
Day 023 #100DaysOfPerf: Some years back, I read this white paper on mobile battery consumption, and it always sat with me. Essentially, it presented a correlation between resource parsing and battery usage. 🔋 tech has improved so curious what it's like today.
crypto.stanford.edu/~dabo/papers...
crypto.stanford.edu/~dabo/papers...
Since the mobile phone is what border agents seem to love most, a few more posts about them are deserving #100DaysOfPerf
March 30, 2025 at 7:10 PM
Since the mobile phone is what border agents seem to love most, a few more posts about them are deserving #100DaysOfPerf
Day 022 #100DaysOfPerf: in a super short follow up to yesterday's mobile performance related post, here was Pinterest around the same time as Deloitte's study, talking about changes they made to their mobile web app and why:
youtu.be/3bKMnYJzrqI?...
happy weekend !
youtu.be/3bKMnYJzrqI?...
happy weekend !
Pinterest: A modern web performance story
YouTube video by Chrome for Developers
youtu.be
March 28, 2025 at 7:36 PM
Day 022 #100DaysOfPerf: in a super short follow up to yesterday's mobile performance related post, here was Pinterest around the same time as Deloitte's study, talking about changes they made to their mobile web app and why:
youtu.be/3bKMnYJzrqI?...
happy weekend !
youtu.be/3bKMnYJzrqI?...
happy weekend !
🚀 Site speed improvements had a direct correlation to improved funnel progression. That was then, March 2020 and it remains today March 2025 📲
Day 021. #100DaysOfPerf
Day 021. #100DaysOfPerf
March 28, 2025 at 1:59 AM
🚀 Site speed improvements had a direct correlation to improved funnel progression. That was then, March 2020 and it remains today March 2025 📲
Day 021. #100DaysOfPerf
Day 021. #100DaysOfPerf
💸 Day 021 #100DaysOfPerf: in 2016, mobile traffic > desktop traffic. A few years ago this week, Deloitte released a study confirming the idea that a faster site not only improved sales, but increased session lengths and more...
✨ Milliseconds Make Millions ✨
www.deloitte.com/content/dam/...
✨ Milliseconds Make Millions ✨
www.deloitte.com/content/dam/...
March 27, 2025 at 5:07 PM
💸 Day 021 #100DaysOfPerf: in 2016, mobile traffic > desktop traffic. A few years ago this week, Deloitte released a study confirming the idea that a faster site not only improved sales, but increased session lengths and more...
✨ Milliseconds Make Millions ✨
www.deloitte.com/content/dam/...
✨ Milliseconds Make Millions ✨
www.deloitte.com/content/dam/...
💰 Day 020 #100DaysOfPerf: in a fun follow up to yesterday's share, today's post highlights @tammyeverts.com's @oreilly.bsky.social release:
✨ TIME IS MONEY : The Business Value of Web Performance ✨
This is about how fast means good ux and happy customers! 🙃
Preview:
🔗 www.google.ca/books/editio...
✨ TIME IS MONEY : The Business Value of Web Performance ✨
This is about how fast means good ux and happy customers! 🙃
Preview:
🔗 www.google.ca/books/editio...
March 26, 2025 at 3:39 PM
💰 Day 020 #100DaysOfPerf: in a fun follow up to yesterday's share, today's post highlights @tammyeverts.com's @oreilly.bsky.social release:
✨ TIME IS MONEY : The Business Value of Web Performance ✨
This is about how fast means good ux and happy customers! 🙃
Preview:
🔗 www.google.ca/books/editio...
✨ TIME IS MONEY : The Business Value of Web Performance ✨
This is about how fast means good ux and happy customers! 🙃
Preview:
🔗 www.google.ca/books/editio...
Day 019 #100DaysOfPerf: What's better?? DOWN time or SLOW times? Data shows having a slow site is much more deleterious to customer retention w/ a near 3/10 customer NEVER returning, at GREAT finan¢ial £o$$es. @speedcurve.com's very own @tammyeverts.com opines!
🔗 www.speedcurve.com/blog/downtim...
🔗 www.speedcurve.com/blog/downtim...
March 25, 2025 at 8:30 PM
Day 019 #100DaysOfPerf: What's better?? DOWN time or SLOW times? Data shows having a slow site is much more deleterious to customer retention w/ a near 3/10 customer NEVER returning, at GREAT finan¢ial £o$$es. @speedcurve.com's very own @tammyeverts.com opines!
🔗 www.speedcurve.com/blog/downtim...
🔗 www.speedcurve.com/blog/downtim...
Day 018 #100DaysOfPerf: 🎂 This is a simple but significant share. 5 yrs ago yesterday, the very 1st commit for what would become the Core Web Vitals, was posted by @philipwalton.com, and would help in addressing and understanding real user performance issues around a threesome of metrics. 🙃
March 24, 2025 at 3:57 PM
Day 018 #100DaysOfPerf: 🎂 This is a simple but significant share. 5 yrs ago yesterday, the very 1st commit for what would become the Core Web Vitals, was posted by @philipwalton.com, and would help in addressing and understanding real user performance issues around a threesome of metrics. 🙃
Running since 2018 (with a covid break), they made immediate impact with modern discussions around performance and user experience, and have become the de facto perf event with some of the great minds attending/speaking.
Content? Yes! More soon... #100DaysOfPerf
🎥:
www.youtube.com/@WebConferen...
Content? Yes! More soon... #100DaysOfPerf
🎥:
www.youtube.com/@WebConferen...
March 21, 2025 at 6:17 PM
Running since 2018 (with a covid break), they made immediate impact with modern discussions around performance and user experience, and have become the de facto perf event with some of the great minds attending/speaking.
Content? Yes! More soon... #100DaysOfPerf
🎥:
www.youtube.com/@WebConferen...
Content? Yes! More soon... #100DaysOfPerf
🎥:
www.youtube.com/@WebConferen...
Day 017 #100DaysOfPerf: Since I talked about #Velocity Con for Day 016, it's only just that I also bring up @perfnow.bsky.social , the other conference that has made it's mark in performance. They emerged in a push for smaller, more indie perf events as Velocity was dissolved. 🧵⬇️
March 21, 2025 at 6:13 PM
Day 017 #100DaysOfPerf: Since I talked about #Velocity Con for Day 016, it's only just that I also bring up @perfnow.bsky.social , the other conference that has made it's mark in performance. They emerged in a push for smaller, more indie perf events as Velocity was dissolved. 🧵⬇️
Though the conference is no longer in running, the content reminds. Some of the talks are on Youtube, and others are on the @oreilly.bsky.social platform. But the ability to go back to watch them is THE 🔑, and provides perspective.
✨ Velocity Conference ✨
Link in previous post!
#100DaysOfPerf
✨ Velocity Conference ✨
Link in previous post!
#100DaysOfPerf
March 21, 2025 at 4:41 PM
Though the conference is no longer in running, the content reminds. Some of the talks are on Youtube, and others are on the @oreilly.bsky.social platform. But the ability to go back to watch them is THE 🔑, and provides perspective.
✨ Velocity Conference ✨
Link in previous post!
#100DaysOfPerf
✨ Velocity Conference ✨
Link in previous post!
#100DaysOfPerf
Day 016 #100DaysOfPerf: Since @oreilly.bsky.social has come up quite a bit w/ all the publications IU shared, let's give the ✨ Velocity Conference ✨ its flowers.
This is likely where it all got started for so many in the field. The content is also available 🧵⬇️ :
🎥 www.youtube.com/results?sear...
This is likely where it all got started for so many in the field. The content is also available 🧵⬇️ :
🎥 www.youtube.com/results?sear...
March 21, 2025 at 4:35 PM
Day 016 #100DaysOfPerf: Since @oreilly.bsky.social has come up quite a bit w/ all the publications IU shared, let's give the ✨ Velocity Conference ✨ its flowers.
This is likely where it all got started for so many in the field. The content is also available 🧵⬇️ :
🎥 www.youtube.com/results?sear...
This is likely where it all got started for so many in the field. The content is also available 🧵⬇️ :
🎥 www.youtube.com/results?sear...
Even as IMG size + compression isn't emphasized as a key bottleneck like before, requests might be ⬇️, but payloads are still ⬆️. Some of this is now being automated.
✨ High Performance Images: SHRINK, LOAD, AND DELIVER IMAGES FOR SPEED ✨ from @oreilly.bsky.social needs your attention. #100DaysOfPerf
✨ High Performance Images: SHRINK, LOAD, AND DELIVER IMAGES FOR SPEED ✨ from @oreilly.bsky.social needs your attention. #100DaysOfPerf
March 19, 2025 at 11:50 PM
Even as IMG size + compression isn't emphasized as a key bottleneck like before, requests might be ⬇️, but payloads are still ⬆️. Some of this is now being automated.
✨ High Performance Images: SHRINK, LOAD, AND DELIVER IMAGES FOR SPEED ✨ from @oreilly.bsky.social needs your attention. #100DaysOfPerf
✨ High Performance Images: SHRINK, LOAD, AND DELIVER IMAGES FOR SPEED ✨ from @oreilly.bsky.social needs your attention. #100DaysOfPerf
Day 015 #100DaysOfPerf : I went through a heavy IMG performance/codec phase and this was a book I looked fwd to as it was being written. Though browser APIs have changed, great lessons in codecs remain.
✨ High Performance Images ✨ belongs on your book shelf.
🧵⬇️
books.google.ca/books?id=G8V...
✨ High Performance Images ✨ belongs on your book shelf.
🧵⬇️
books.google.ca/books?id=G8V...
March 19, 2025 at 11:35 PM
Day 015 #100DaysOfPerf : I went through a heavy IMG performance/codec phase and this was a book I looked fwd to as it was being written. Though browser APIs have changed, great lessons in codecs remain.
✨ High Performance Images ✨ belongs on your book shelf.
🧵⬇️
books.google.ca/books?id=G8V...
✨ High Performance Images ✨ belongs on your book shelf.
🧵⬇️
books.google.ca/books?id=G8V...
Though release some time back, the concepts remain the same:
🔸 defining a *good performance*
🔸 testing regularly!
🔸 looking at data, and not guesswork.
Basically, foundations on becoming a PerfOps
Found a link where you can read it for free:
📚 theswissbay.ch/pdf/Books/Co...
Enjoy
#100DaysOfPerf
🔸 defining a *good performance*
🔸 testing regularly!
🔸 looking at data, and not guesswork.
Basically, foundations on becoming a PerfOps
Found a link where you can read it for free:
📚 theswissbay.ch/pdf/Books/Co...
Enjoy
#100DaysOfPerf
March 19, 2025 at 7:25 PM
Though release some time back, the concepts remain the same:
🔸 defining a *good performance*
🔸 testing regularly!
🔸 looking at data, and not guesswork.
Basically, foundations on becoming a PerfOps
Found a link where you can read it for free:
📚 theswissbay.ch/pdf/Books/Co...
Enjoy
#100DaysOfPerf
🔸 defining a *good performance*
🔸 testing regularly!
🔸 looking at data, and not guesswork.
Basically, foundations on becoming a PerfOps
Found a link where you can read it for free:
📚 theswissbay.ch/pdf/Books/Co...
Enjoy
#100DaysOfPerf
Day 014 #100DaysOfPerf : *some* might recall the VELOCITY conference. This performance conf is how many of us cut our teeth early. Added, curators @oreilly.bsky.social used to release short little books as PDFs to promote the conference.
✨ Web Performance Warrior: The Business of Speed ✨
🧵⬇️
✨ Web Performance Warrior: The Business of Speed ✨
🧵⬇️
March 19, 2025 at 7:20 PM
Day 014 #100DaysOfPerf : *some* might recall the VELOCITY conference. This performance conf is how many of us cut our teeth early. Added, curators @oreilly.bsky.social used to release short little books as PDFs to promote the conference.
✨ Web Performance Warrior: The Business of Speed ✨
🧵⬇️
✨ Web Performance Warrior: The Business of Speed ✨
🧵⬇️
Day 013 #100DaysOfPerf : ✨ RESPONSIBLE JAVASCRIPT ✨ is a book by Jeremy Wagner that discusses how to use JS in a performant, accessible, and ultimate responsible way. Published by @alistapart.bsky.social, it was based on a 3 part series of blog posts published prior.
responsiblejs.dev for more info
responsiblejs.dev for more info
March 18, 2025 at 7:40 PM
Day 013 #100DaysOfPerf : ✨ RESPONSIBLE JAVASCRIPT ✨ is a book by Jeremy Wagner that discusses how to use JS in a performant, accessible, and ultimate responsible way. Published by @alistapart.bsky.social, it was based on a 3 part series of blog posts published prior.
responsiblejs.dev for more info
responsiblejs.dev for more info
Day 012 #100DaysOfPerf: One thing that made me curious about the #JAMstack was the performance claim. So we poked around. There was validity to the architecture's performant abilities. So this was covered in the Almanac. ✨ JAMstack ✨chapter : 🧵⬇️
almanac.httparchive.org/en/2024/jams...
almanac.httparchive.org/en/2024/jams...
March 17, 2025 at 6:56 PM
Day 012 #100DaysOfPerf: One thing that made me curious about the #JAMstack was the performance claim. So we poked around. There was validity to the architecture's performant abilities. So this was covered in the Almanac. ✨ JAMstack ✨chapter : 🧵⬇️
almanac.httparchive.org/en/2024/jams...
almanac.httparchive.org/en/2024/jams...
With a growing number of resources being shipped using CDNs, we are also seeing significantly more H2 and higher support and use. This also means the more you use CDNs, the more you take advantage of the modern networking feature and so much more:
almanac.httparchive.org/en/2024/http
#100DaysOfPerf
almanac.httparchive.org/en/2024/http
#100DaysOfPerf
HTTP | 2024 | The Web Almanac by HTTP Archive
The HTTP chapter of the 2024 Web Almanac covers data on historical versions of HTTP used across the web, as well as the uptick in adoption of HTTP/2 and HTTP/3 from alt-svc and DNS HTTPS records. Addi...
almanac.httparchive.org
March 17, 2025 at 12:14 AM
With a growing number of resources being shipped using CDNs, we are also seeing significantly more H2 and higher support and use. This also means the more you use CDNs, the more you take advantage of the modern networking feature and so much more:
almanac.httparchive.org/en/2024/http
#100DaysOfPerf
almanac.httparchive.org/en/2024/http
#100DaysOfPerf
as Robin says: "HTTP remains the cornerstone of the web ecosystem, providing the foundation for exchanging data and enabling various types of internet services." As a chemist might say. HTTP is the *limiting reagent*. Noting much (at all?) happens w/o it. #100DaysOfPerf 🧵⬇️
March 16, 2025 at 11:46 PM
as Robin says: "HTTP remains the cornerstone of the web ecosystem, providing the foundation for exchanging data and enabling various types of internet services." As a chemist might say. HTTP is the *limiting reagent*. Noting much (at all?) happens w/o it. #100DaysOfPerf 🧵⬇️
Day 011 #100DaysOfPerf: I shared the hpbn book (Day 002) that wall about levelling up on HTTP. Well, let's look at CURRENT HTTP data from the @httparchive.org's Web Almanac. On deck ✨ HTTP ✨ by none other than @programmingart.bsky.social. Let's take a look: 🧵⬇️
almanac.httparchive.org/en/2024/http
almanac.httparchive.org/en/2024/http
March 16, 2025 at 11:40 PM
Day 011 #100DaysOfPerf: I shared the hpbn book (Day 002) that wall about levelling up on HTTP. Well, let's look at CURRENT HTTP data from the @httparchive.org's Web Almanac. On deck ✨ HTTP ✨ by none other than @programmingart.bsky.social. Let's take a look: 🧵⬇️
almanac.httparchive.org/en/2024/http
almanac.httparchive.org/en/2024/http
Put out a few late night posts yesterday for #100DaysOfPerf whilst watching 🏀 + 🎥 😂. For those curious.
Day 009
bsky.app/profile/henr...
Day 010
bsky.app/profile/henr...
Day 009
bsky.app/profile/henr...
Day 010
bsky.app/profile/henr...
March 16, 2025 at 8:23 PM
Put out a few late night posts yesterday for #100DaysOfPerf whilst watching 🏀 + 🎥 😂. For those curious.
Day 009
bsky.app/profile/henr...
Day 010
bsky.app/profile/henr...
Day 009
bsky.app/profile/henr...
Day 010
bsky.app/profile/henr...
That said, you add video and you have a media macédoine that requires attention, as your are likely serving more bytes than needed. This chapter covers a lot of data which again factors into performance. Another fascinating read. ENJOY
🔗 almanac.httparchive.org/en/2024/media
#100DaysOfPerf
🔗 almanac.httparchive.org/en/2024/media
#100DaysOfPerf
Media | 2024 | The Web Almanac by HTTP Archive
Media chapter of the 2024 Web Almanac covering how images and videos are currently being encoded, embedded, styled, and delivered on the web.
almanac.httparchive.org
March 16, 2025 at 5:16 AM
That said, you add video and you have a media macédoine that requires attention, as your are likely serving more bytes than needed. This chapter covers a lot of data which again factors into performance. Another fascinating read. ENJOY
🔗 almanac.httparchive.org/en/2024/media
#100DaysOfPerf
🔗 almanac.httparchive.org/en/2024/media
#100DaysOfPerf