Are Compositing Window Managers Lightweight?
With the recent talk about developing a lightweight KDE desktop, the KWin maintainer, Martin Gräßlin, is talking out to try to clarify whether the compositing window manager is lightweight.
In a new blog post Martin has rebuked these claims of KWin not being up to lightweight tasks.
Martin explains that the window manager / compositor don't go through too much system memory, the biggest cost is likely using the XComposite extension but this is avoided with Wayland, and that even if the compositing window manager goes through a bit more system memory it generally comes with using less CPU usage than a non-composited desktop environment.
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