GNOME Shell Performance Improvements in Ubuntu 20.04

Desktop
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Pro tip: You can boost performance at 4K without waiting for the software updates using the two methods I am using on my 20.04 machine:

  • Make sure you have dual channel RAM installed (using both channels). Check it by running:

    sudo dmidecode -t17

  • Force Mesa to use the old driver which seems to be more aggressive with frequency scaling (in a good way):

    MESA_LOADER_DRIVER_OVERRIDE=i965

    in /etc/environment and reboot. But I aim to fix this properly in 3.38 so you don’t need to revert to the old driver.

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