Don't work on linux 6.5 and 6.6 (Manjaro)

[le5h]

> sudo systemctl start set-cfs-tweaks
ob for set-cfs-tweaks.service failed because the control process exited with error code.
See "systemctl status set-cfs-tweaks.service" and "journalctl -xeu set-cfs-tweaks.service" for details.

> systemctl status set-cfs-tweaks.service
× set-cfs-tweaks.service - Set CFS tweaks
     Loaded: loaded (/usr/lib/systemd/system/set-cfs-tweaks.service; enabled; preset: disabled)
     Active: failed (Result: exit-code) since Wed 2023-11-08 04:28:48 MSK; 15s ago
    Process: 9853 ExecStart=/usr/lib/cfs-zen-tweaks/set-cfs-zen-tweaks.bash (code=exited, status=1/FAILURE)
   Main PID: 9853 (code=exited, status=1/FAILURE)
        CPU: 10ms

ноя 08 04:28:48 alexei-desktop set-cfs-zen-tweaks.bash[9853]: Targeted preemption latency for CPU-bound tasks: 4ms
ноя 08 04:28:48 alexei-desktop set-cfs-zen-tweaks.bash[9853]: Minimal preemption granularity for CPU-bound tasks: 0.4ms
ноя 08 04:28:48 alexei-desktop set-cfs-zen-tweaks.bash[9853]: Wake-up granularity: 0.5ms
ноя 08 04:28:48 alexei-desktop set-cfs-zen-tweaks.bash[9853]: Task migration cost: 0.25ms
ноя 08 04:28:48 alexei-desktop set-cfs-zen-tweaks.bash[9853]: Amount of runtime to allocate from global to local pool: 3ms
ноя 08 04:28:48 alexei-desktop set-cfs-zen-tweaks.bash[9853]: Detected kernel <5.13. Using legacy locations.
ноя 08 04:28:48 alexei-desktop set-cfs-zen-tweaks.bash[9853]: /usr/lib/cfs-zen-tweaks/set-cfs-zen-tweaks.bash: строка 57: /proc/sys/kernel/sched_latency_ns: Нет такого файла или каталога
ноя 08 04:28:48 alexei-desktop systemd[1]: set-cfs-tweaks.service: Main process exited, code=exited, status=1/FAILURE
ноя 08 04:28:48 alexei-desktop systemd[1]: set-cfs-tweaks.service: Failed with result 'exit-code'.
ноя 08 04:28:49 alexei-desktop systemd[1]: Failed to start Set CFS tweaks.

[igo95862]

Hello @le5h

This is because of the new EEVDF scheduler.

[igo95862]

@le5h I added 75cb8c2 which should add support for EEVDF scheduler and released the version 1.3.0 . Can you give it a test?

[le5h]

Thank you! Seems to be working now, at least not failing :D

[ZanDev32]

@igo95862 Hey i have similar error with with different file, might you check this out too?

here is the systemctl status output:

× set-cfs-tweaks.service - Set CFS tweaks
     Loaded: loaded (/lib/systemd/system/set-cfs-tweaks.service; enabled; vendor preset: enabled)
     Active: failed (Result: exit-code) since Sun 2024-06-23 18:30:11 WIT; 6h ago
   Main PID: 975 (code=exited, status=2)
        CPU: 28ms

Jun 23 18:30:05 {user} set-cfs-zen-tweaks.sh[975]: Wake-up granularity: 0.5ms
Jun 23 18:30:05 {user} set-cfs-zen-tweaks.sh[975]: Task migration cost: 0.25ms
Jun 23 18:30:05 {user} set-cfs-zen-tweaks.sh[975]: Amount of runtime to allocate from global to local pool: 3ms
Jun 23 18:30:05 {user} set-cfs-zen-tweaks.sh[975]: Number of tasks to iterate in a single balance run: CFS 64 EEVDF 8
Jun 23 18:30:11 {user} set-cfs-zen-tweaks.sh[975]: Detected kernel <5.13. Using legacy locations.
Jun 23 18:30:11 {user} set-cfs-zen-tweaks.sh[975]: Detected EEVDF scheduler
Jun 23 18:30:11 {user} set-cfs-zen-tweaks.sh[975]: /usr/sbin/set-cfs-zen-tweaks.sh: 73: cannot create /sys/kernel/debug/sched/base_slice_ns: Directory nonexistent
Jun 23 18:30:11 {user} systemd[1]: set-cfs-tweaks.service: Main process exited, code=exited, status=2/INVALIDARGUMENT
Jun 23 18:30:11 {user} systemd[1]: set-cfs-tweaks.service: Failed with result 'exit-code'.
Jun 23 18:30:11 {user} systemd[1]: Failed to start Set CFS tweaks.

[igo95862]

Maybe the #3 is relevant for your case.

Check if you have the debugfs mounted on /sys/kernel/debug.

[ZanDev32]

Maybe the #3 is relevant for your case.

Check if you have the debugfs mounted on /sys/kernel/debug.

Well, after checking using this command sudo mount -a -v debugfs already mounted on /sys/kernel/debug. What should i do next?

[igo95862]

Check if /sys/kernel/debug/sched/base_slice_ns exists.

[ZanDev32]

Check if /sys/kernel/debug/sched/base_slice_ns exists.

the sched directory is missing. i cannot create it using mkdir with root privilaged, what should i do?

[igo95862]

Check if you have the scheduler debug enabled in kernel:

zcat /proc/config.gz | grep 'SCHED'

...
CONFIG_SCHED_DEBUG=y
CONFIG_SCHED_INFO=y
...