That is an excellent idea.
Before embarking on that endeavor I did a last control test which
involved deploying Bionic and then installing the Focal 5.4 kernel
packages, and lo and behold the system is still performant.
Redeploying Focal (with the Focal kernel obviously) makes it non-
performant again.
While still baffled by the roots of the issue I will mark this bug
Invalid for the kernel packages for now as there is obviously some
mischief somewhere else involved in the end result. Depending on what I
find the open status may or may not return.
Thank you for your support so far.
** Changed in: linux (Ubuntu)
Status: Confirmed => Invalid
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https://bugs.launchpad.net/bugs/1880943
Title:
[focal] disk I/O performance regression
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