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Tabs that are asleep will fade to let you know they’ve released resources. If two hours isn’t right for you, you can choose a different time interval.
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These resources include both memory and CPU and can be used for new or existing tabs or other applications running on your device.īy default, Microsoft set tabs to go to sleep after two hours of inactivity when sleeping tabs is enabled. This feature allows inactive background tabs to “go to sleep,” releasing system resources after a set amount of time. Microsoft built upon the freezing technology to create sleeping tabs.
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A sleeping tab resumes automatically when clicked, which is different than discarded tabs, which require the page to fully be reloaded. Freezing pauses a tab’s script timers to minimize resource usage. Sleeping tabs builds upon the core of Chromium’s “freezing” technology. Although individual device performance varies depending on configuration and usage, Microsoft expects the decrease in resource and battery usage to create a better browsing experience for users. These resource savings should result in excellent battery savings. Microsoft’s internal testing has also shown that a normal background tab uses 29% more CPU for Microsoft Edge than a sleeping tab. To improve memory and CPU utilization of the Microsoft Edge browser, Microsoft has developed a feature called sleeping tabs.Įarly internal testing of devices with sleeping tabs has shown a median memory usage reduction of 26% for Microsoft Edge.