Alex Russell

MARCH 6, 2021

TL;DR: A lot has changed since 2017 when we last estimated a global baseline resource per-page resource budget of 130-170KiB. To update our global baseline from 2017, we want to update our priors on a few dimensions: The evolved device landscape. Hardware Past As Performance Prologue. The Moto G4 , for example. Hard Reset.

Performance 124

Performance Network Cache Metrics 124

Smashing Magazine

JANUARY 21, 2021

After the latest redesign in late 2017, it was Ilya Pukhalski on the JavaScript side of things (part-time), Michael Riethmueller on the CSS side of things (a few hours a week), and yours truly, playing mind games with critical CSS and trying to juggle a few too many things. The performance distribution for Largest Contentful Paint in 2020.

Performance 145

Performance Cache Mobile Network 145

Alex Russell

OCTOBER 22, 2017

— Alex Russell (@slightlylate) October 4, 2017. Our metrics at Google show a conflicted picture (which I’m working to get to clarity on). We now have everything we need to create a ballpark perf budget for a product in 2017. Maybe "ambush by JS"? 75% of of connections occur on either 2G or 3G. First Load.

Performance 68

Performance Benchmarking Network Mobile 68

Smashing Magazine

JANUARY 7, 2019

For Mac OS, we can use Network Link Conditioner , for Windows Windows Traffic Shaper , for Linux netem , and for FreeBSD dummynet. On the other hand, we have hardware constraints on memory and CPU due to JavaScript parsing times (we’ll talk about them in detail later). Lighthouse , a performance auditing tool integrated into DevTools.

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Performance Cache Metrics Network 103