Thursday, 26 January 2017

Chrome To Introduce Timer To Throttle Background Pages

Google plans to roll out a change in Chrome Stable soon that will have the browser throttle timers in background tabs to improve battery life and browsing performance. From a report: The motivation behind the chance is that some pages consume a lot of CPU when they are in the background. Google mentions JavaScript advertisements and analytics scripts explicitly but it is not limited to that. The core idea is to limit the processing power that background tabs get in Chrome once the feature lands. (1) Each WebView has a budget (in seconds) for running timers in background. (2) A timer task is only allowed to run when the budget is non-negative. (3) After a timer has executed, its run time is subtracted from the budget. (4) The budget regenerates with time (at rate of 0.01 seconds per second). (5) The only pages that appear to be exempt from the throttling are those that play audio.
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