[arch-general] KDE plasma, baloo and UI/video playback freezes
frapox at gmail.com
Sat Jun 2 12:11:30 UTC 2018
So, I finally tried the BFQ scheduler as Carsten suggested.
I tested it eg. using youtube-dl to download a big video from Vimeo (it
creates/remove quickly a lot of temp files that baloo indexes every time
causing a lot of IO), while Qbittorrent was downloading several big files...
So 100% disk activity going on (monitored with iotop).
Overloading the disk queue this way, with BFQ enabled, the result was that the
video playback of a 1080p movie by VLC was smooth and didn't hang/freeze at
all. I can assume BFQ was able to handle better all the stuff going on.
So thanks Carsten for the suggestion :) This fixed (or at least worked around)
It remains to understand why on Debian and derivs. this issue doesn't exist.
Maybe the CONFIG_PREEMPT_VOLUNTARY=y set by default on kernel's config or some
other block device related configs I don't have the skill (and the time) to
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