Although Chrome has been praised for its quick response, its thirst for memory is well known. If you are accustomed to reaching dozens of tabs at a one-time, this "fee-memory" experience will be more profound. To improve the stereotype of its "memory-hungry" people, the chrome team is considering taking "active memory" measures when the system is out of memory, such as temporarily "discarding" the user's current "least-interested" tab.
It should be noted that these tabs are not really removed, but will be loaded again when you click on them.
Chromium team member François Beaufort the latest feature through its own Google + page, and interested users can download the chromium version of the developer's preemptive experience.
If you subscribe to an experimental chromium compiled version, you can enable tab discarding in the chrome://flags/#enable-tab-discarding. As for how the "most interesting tabs" are sorted by chrome, go to "chrome://discards".
It should be noted that Chrome OS and mobile browsers have already done so.