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80 lines
1.6 KiB
Markdown
80 lines
1.6 KiB
Markdown
# A Quick Start Guide
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This guide provides instructions for running the SCX schedulers as a systemd service and checking its logs.
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## Getting Started
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At the very beginning, configure the /etc/default/scx file:
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- in the SCX_SCHEDULER variable, select the scheduler you are interested in
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- in the SCX_FLAGS variable, specify the flags you want to add. To do this, execute and read what flags you can add.
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```
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scx_SCHEDNAME --help
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```
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To start the SCX scheduler at boot, you need to run the systemd service as root. Here are the steps:
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- Enable the service:
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```
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systemctl enable scx.service
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```
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- Start the service:
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```
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systemctl start scx.service
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```
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Alternatively, you can use a shortened version of these commands:
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```
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systemctl enable --now scx.service
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```
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- To check the status of the service, use the following command:
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```
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systemctl status scx.service
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```
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## Override global configuration
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It is possible to override the global scx settings using systemd environment
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variables `SCX_SCHEDULER_OVERRIDE` and `SCX_FLAGS_OVERRIDE`.
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Example:
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```
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systemctl set-environment SCX_SCHEDULER_OVERRIDE=scx_rustland
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systemctl set-environment SCX_FLAGS_OVERRIDE="-s 10000"
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systemctl restart scx
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```
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If you want to restore the default value from the `/etc/default/scx` file execute:
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```
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systemctl unset-environment SCX_SCHEDULER_OVERRIDE
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systemctl unset-environment SCX_FLAGS_OVERRIDE
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systemctl restart scx
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```
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## Checking journald Logs
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- To view the logs, use the following command:
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```
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journalctl -u scx.service
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```
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- To view the logs of the current session use the command
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```
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journalctl -u scx.service -b 0
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```
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