Interval between heartbeat pulses (ms)


Linux Kernel Configuration
└─>Device Drivers
└─>Graphics support
└─>drm/i915 Profile Guided Optimisation
└─>Interval between heartbeat pulses (ms)
In linux kernel since version 4.14.326 (release Date: 2023-09-23)  
The driver sends a periodic heartbeat down all active engines to
check the health of the GPU and undertake regular house-keeping of
internal driver state.

This is adjustable via

May be 0 to disable heartbeats and therefore disable automatic GPU
hang detection.