On 2023-01-20 17:37:11 [+0800], Hillf Danton wrote: > > I am fine with either 4ms or 40ms, or a second. > > Given the cure, does it still work when reader bias for RT tasks is allowed? No. > If not, why keep starving waiters after they pay the 40ms price? That kind of starvation will also happen if you have only spinlock_t locks and you say 3 RT tasks that acquire the lock back to back. And a few SCHED_OTHER tasks. Those 3 will be always be in front of the queue (as they skip the line) and the following SCHED_OTHER tasks will starve and never get the lock. So it is basically the same scenario. Sebastian
