Chrome will soon throttle JavaScript timers in the background, so the browser uses significantly less power. Written by Liam Tung, Contributing Writer July 6, 2020 at 4:08 a.m. PT ...

Executing JavaScript code will definitely involve the processor cache and a high-resolution timer is accessible via browser performance API.

Google is planning to add a new Chrome feature that could lead to drops of almost 30% in battery usage by throttling JavaScript timers in background tabs.

Google is testing changes to the JavaScript timers for background tabs in Chrome that improve battery usage by 13% to 28%. Users can enable the feature in the Canary version of Chrome and Edge.