We have recently introduced a new feature of Microsoft Edge, that the company is currently working on, called "Sleeping Tabs". The feature when activated moves the background tabs of the browser to a sleeping state and thus improves the overall system performance.


Microsoft shared more lights on this feature and shared some benchmark data that says a reduction in CPU and memory utilization after activating Sleeping Tabs for Microsoft Edge. Let's discuss how it is going to improve your laptop battery life.


Here's how the new sleeping tabs of Microsoft Edge will result in excellent battery savings


Microsoft reports that the early internal testing of devices with Microsoft Edge's sleeping tabs has shown a 26% reduction in memory usage of the browser. The internal testing has also shown a 29% reduction of CPU utilization than a normal background tab.


The sleeping tabs is based on Chrome's "freezing" technology, but way better than that. Freezing pauses a tab's script timers to minimize resource usage. A sleeping tab resumes automatically when clicked, which is different than discarded tabs, which require the page to fully be reloaded.


This feature allows inactive background tabs to "go to sleep", releasing system resources after a set amount of time. These resources include both memory and CPU and can be used for new or existing tabs or other applications running on your device.


By default, Microsoft sets the tabs to go to sleep after two hours of inactivity. If two hours isn't right for you, you can choose a different time interval for the Microsoft Edge tab to go to sleep.



Once activated, it will decrease in resource and battery usage to create a better browsing experience for users running Microsoft Edge (Chromium) on Windows 10. Here's a report shared by Microsoft, based on performance data aggregated across ~13000 devices:


Microsoft's benchmark report on sleeping tabs of Microsoft Edge


The feature is coming soon to the Canary and Dev Channels. If you are running Microsoft Edge version 87.0.643.0 or above, you can enable this feature right now by enabling a hidden flag as mentioned in this article. Microsoft is looking for feedback from the Edge Insiders before rolling it out to the Stable release channel.


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