Significantly worsened keyboard auto-repeat performance in Fx 124.0.1
Categories
(Core :: Performance: General, defect)
Tracking
()
People
(Reporter: jseward, Unassigned)
References
Details
I first noticed this in 124.0.1; it may also exist in 124. I don't remember
it in 123 or earlier.
I run Fx on a very slow but just-about-adequate machine, an Intel Celeron
N4000 (2 x Goldmont Plus cores) at around 2.6 GHz.
In text boxes, keyboard auto-repeat performance is significantly worse than it
was in 123. This is somewhat noticeable in Bugzilla text-boxes and is
extremely noticeable in the text input field in our Element/Matrix instance,
both adding text and backspacing -- holding down a key (or backspace) causes a
repeat rate of around 1/sec, which is unusable.
The strange thing is that perf monitors (gkrellm, top) do not show any thread
or process anywhere close to 100% CPU utilisation whilst a key is held down,
which makes me wonder if there has been some change to keyboard-event
scheduling somewhere.
For the rest of the desktop (xterm, emacs, etc) keyboard auto-repeat works
just fine.
My setup:
Intel Celeron N4000
Debian 12 (64-bit)
KDE 5 / Plasma
and I'm using Xorg, not Wayland
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Updated•2 years ago
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Description
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