Hello Gerrit
Could you confirm the behavior of iotop?
These are my results:
$ sudo iostat ALL
Linux 5.4.0-4-amd64 (debian) 18/03/20 _x86_64_ (4 CPU)
avg-cpu: %user %nice %system %iowait %steal %idle
23,39 0,09 8,69 2,08 0,00 65,74
Device tps kB_read/s kB_wrtn/s kB_dscd/s kB_rea
d kB_wrtn kB_dscd
sda 10,26 96,15 91,01 0,00 3901930
9 36931337 0
scd0 0,00 0,00 0,00 0,00
0 0 0
$ uname -a
Linux debian 5.4.0-4-amd64 #1 SMP Debian 5.4.19-1 (2020-02-13) x86_64
GNU/Linux
There are no data for r/s, w/s, d/s or f/s. Man page for iostat states
that the result contain only data that are provided by the kernel.
AFAIK, the kernel is not collecting this info.
Greetings,
Marcos.
