Am 09.08.20 um 10:15 schrieb Andrei Borzenkov:
09.08.2020 10:41, Wolfgang Rosenauer пишет:
Hi,
I was watching the issue for a few weeks now and it's bad enough to post here finally because I'm not sure if I have enough information for a bugreport.
I was running Leap 15.1 on my system - Intel(R) Core(TM) i5-4570 CPU @ 3.20GHz (4 core) - 16GiB RAM - builtin Intel graphics (i915) - SSD - Xfce
15.1 was running quite smooth for me.
Since the upgrade to 15.2 it pretty quickly (under some sort of load) gets into a state where the desktop is stuttering with everything: - mouse movement gets stuck
In case you are running btrfs, you might have some tree-balancing. This can take up an hour or two. But once it's done, you are fine. You can see a process called "btrfs-balance" or similar with ps -e, top your your process-list-window of your DE.
I had similar effects on Ubuntu after update from kernel 5.0 to 5.3. Effects appeared as soon as system started to use swap (it did not matter what amount, even several MB was already enough). Same was with kernel 5.4, I ended up using kernel 5.5.
Interesting. With openSuse 15.2. my problems with swap have finally been solved. I was struggling since the 13.x-series.
- windows do not appear instantly - switching desktops is delayed, rerendering takes quite long
The point is that I cannot even tell which type of load exactly is causing this behaviour but it is not a lot. As I'm writing this mail my load average in top shows 0,27 but still when moving my mouse it stutters. Another example: When I upload a larger amount of data to the internet my UI also seems to be affected.
I really have no idea how to track that down more but it's annoying and it started exactly after update to 15.2.
Any ideas, hints, feedback?
You may try more recent kernel to compare.
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