DEV Community

Sia Karamalegos
Sia Karamalegos

Posted on • Edited on

Day 25 of⚡️ #30DaysOfWebPerf ⚡️: Jank

Liquid error: internal




This article was originally published on sia.codes. Head over there if you like this post and want to read others like it, or sign up for my newsletter to be notified of new posts!

Top comments (1)

Collapse
 
thegreengreek profile image
Sia Karamalegos

I got some good questions on Twitter, so here's more info:

Q: Oh I like this! Do you have a favorite tool that displays the FPS on a component/page level?

A:
The performance tab in Chrome Dev Tools is a great tool. The frames section shows you frames and if you hover on the green area, the net fps. Then you can look in the other sections to see what might be happening. The main thread section shows you long running JS.

The red triangles help highlight problematic areas - see video below where I tried to show all this. I can upload to youtube if twitter doesn't save with good enough quality. (see video in tweet below)