Question about using Task.Run in ThreadTriggeredTaskRunHeartbeat

[LectorNoticio]

Hi,
Was looking for some examples of heartbeats and found your code. I wonder, have you found any heartbeat implementation that can survive high CPU scenarios? So far, the only approach that seems to survive relatively high cpu consumption is having a thread (not from threadpool), that does an infinite loop and SpinWait(few ms) inside. Other than that, I've tried Threading.Timer, Timers.Timer, an await Task.Delay(ms), and Quartz.Net scheduler. All those approaches fail under heavy load. I wonder what your opinion is on this matter?