New comment by bbonev on void-packages repository

https://github.com/void-linux/void-packages/issues/34663#issuecomment-1008428531

Comment:
> They had the issue and solved it: [Tomas-M/iotop#21](https://github.com/Tomas-M/iotop/issues/21)
> 
> Apparently `iotop` needs `kernel.task_delayacct` to be enabled, however since kernel 5.15 it seems to be disabled https://www.kernel.org/doc/html/v5.15/accounting/delay-accounting.html

The above link points to the C rewrite of `iotop` (packaged as `iotop-c` in many Linux distributions but not in Void Linux) while the python one is located at https://repo.or.cz/iotop.git; the OP obviously talks about the python version of `iotop`.
The fix mentioned above is for the C version where the user can toggle the `task_delayacct` sysctl with a shortcut. The python version only gives a warning in case the sysctl is off and SWAPIN/IO do not work (the fix is not in a released version yet, one option is to package the HEAD of the python iotop's repo).

Hope I could reduce the confusion...