Robin Davies
37 lines
1.7 KiB
Markdown
37 lines
1.7 KiB
Markdown
### Enabling Realtime Scheduling
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The TooB Convolution Reverb and TooB Cab IR effects require realtime scheduling to be enabled for the current user
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in order process convolution data on background threads while audio is running in realtime.
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The procedure for enabling realtime scheduling varies between Linux distributions.
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Most modern distributions have the RTKIT DBus service, which allow programs to request realtime priority. But the restrictions imposed by the RTKIT
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DBus service may prevent the TooB plugins from starting. RTKIT does have configuration options, but the procedure for configuring RTKIT is unusually difficult.
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If TooB plugins exceed the limits imposed by RTKIT (or if the RTKIT service doesn't exist), the easiest solution is to grant realtime scheduling permissions to
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the current user.
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The native Linux scheduler calls require the user to have appropriate permissions. To grant permissions for the TooB plugins, make the following
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modifications to your system.
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On many Linux distros, any user of the audio group is granted realtime scheduling permissions. Check for files in the `/etc/limits.d/` directory named nn-audio.conf.
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If such a file exists, open it to see which group has been granted permissions. There should be a lime simular to the following:
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```
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@audio - rtprio 95
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```
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If the file exists, add your user-id to the audio group, and reboot to make the change take effect.
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To grant realtime scheduling permissions to your user-id , add the following line to `/etc/security/limits.conf`:
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```
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youruserid - rtprio 95
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```
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or add the following line to grant realtime scheduling permissions for all users:
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```
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* - rtprio 95
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```
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Once you have made the change, reboot to make the change take effect.
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