Alex Russell

APRIL 29, 2021

As an engineer on a browser team, I'm privy to the blow-by-blow of various performance projects, benchmark fire drills, and the ways performance marketing (deeply) impacts engineering priorities. With each team, benchmarks lost are understood as bugs. All modern browsers are fast, Chromium and Safari/WebKit included. position: sticky.

Media 145

Media Games Education Engineering 145

Alex Russell

MAY 9, 2022

This is a complex topic, but to borrow from a recent post , web performance expands access to information and services by reducing latency and variance across interactions in a session, with a particular focus on the tail of the distribution (P75+). Consistent performance matters just as much as low average latency.

Performance 86

Performance Latency Metrics Engineering 86

Alex Russell

JANUARY 30, 2024

Speedtest.net's data for India shows dramatic gains, for example , and analysts credit this to improved infrastructure density, expanded spectrum, and back-haul improvements related to the 5G rollout — all of which is to say that 4G users are getting better experiences than they did last year because of 5G's role in reducing contention.

Performance 90

Performance Network Mobile Speed 90

Alex Russell

MARCH 6, 2021

In 2016, Jio swept over the subcontinent like a monsoon dropping a torrent of 4G infrastructure and free data rather than rain. Using a global ASP as a benchmark can further mislead thanks to the distorting effect of ultra-high-end prices rising while shipment volumes stagnate. Today, either method returns a similar answer.

Performance 124

Performance Network Cache Metrics 124