Session: Real time scheduling & async KMS API

[melissawen]

• Session Introduction: Xaver (BlueSystems/KDE)

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Time: Wed 10:10-11:40 (CEST)
Lead(s): Xaver
Possible topics:

• Using real time scheduling for handling KMS update scheduling opens up many possibilities, e.g. lower latency input feedback, potentially better VRR handling, buffer synchronization before handing to KMS
• Biggest hurdle right now is "async" uAPI usage sometimes block for a substantial amount of time (10+ frames) which in the worst case causes SIGKILL
• Drivers ideally should try hard to avoid blocking on async calls, or otherwise mark the process as waiting, when waiting for something