Re: IO performance information taken out of kernel

Michel Verdier <[email protected]> Tue, 21 Jul 2026 06:38:18 +0200
Newsgroups gmane.linux.debian.user
Message-ID <[email protected]>
On 2026-07-21, C.T.F. Jansen wrote:

> iotop and iotop-c don't collect IO wait information anymore unless one "opts
> in" by setting up the relevant variable in /etc/default/grub. This is the
> wrong way round for running a server.

Which kernel version do you use ?
Man page says "kernel.task_delayacct sysctl enabled". You can set it in
/etc/sysctl.d/*. If you used /etc/sysctl.conf it could have been removed
during procps upgrade.