https://bugs.freedesktop.org/show_bug.cgi?id=101162

--- Comment #5 from Pekka Paalanen <ppaala...@gmail.com> ---
Hi,

The difference from 9000 to 7600 fps is the change from 111 us to 132 us, while
screen refreshes are in the order of 10000 to 20000 us, depending on refresh
rate. IMO it is proof that glxgears does not suffer from the issue described,
because 21 us cost for decorations is pretty much nothing.

Attaching decorations to the Chrome window causes a significant slowdown, but
is it only when playing video in Chrome?

If the slowdown happened regardless of web page content, I might suspect a
pixel format difference between the decorations and Chrome content.

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