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cb8928260e
Currently if the scx.service is failing to launch due issues, systemd will try to start the scheduler all the time. This results into a massive flood to the kernel and does not bring the service up again. explanation of the changes: The StartLimitBurst=2 and StartLimitIntervalSec=30 settings tell systemd that if the service unsuccessfully tries to restart itself twice within 30 seconds, it should enter a failed state and no longer try to restart. This ensures that if the service is truly broken, systemd won't continuously try to restart it. Signed-off-by: Peter Jung <admin@ptr1337.dev> |
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| .. | ||
| openrc | ||
| systemd | ||
| README.md | ||
| scx | ||
A Quick Start Guide
This guide provides instructions for running the SCX schedulers as a systemd service and checking its logs.
Getting Started
At the very beginning, configure the /etc/default/scx file:
-
in the SCX_SCHEDULER variable, select the scheduler you are interested in
-
in the SCX_FLAGS variable, specify the flags you want to add. To do this, execute and read what flags you can add.
scx_SCHEDNAME --help
To start the SCX scheduler at boot, you need to run the systemd service as root. Here are the steps:
- Enable the service:
systemctl enable scx.service
- Start the service:
systemctl start scx.service
Alternatively, you can use a shortened version of these commands:
systemctl enable --now scx.service
- To check the status of the service, use the following command:
systemctl status scx.service
Checking Journald Logs
The SCX schedulers do not log to the default journald namspace. Instead, they save logs in a dedicated sched-ext namespace.
This is where you should look for information about possible errors.
- To view the logs, use the following command:
journalctl --namespace=sched-ext
- To find logs from another system startup and identify when a potential error might have occurred, use:
journalctl --namespace=sched-ext --list-boots
- To verify the amount of space taken up by the logs, use:
journalctl --namespace=sched-ext --disk-usage