Lines Matching refs:PI

1 Lightweight PI-futexes
6  - in the user-space fastpath a PI-enabled futex involves no kernel work
7    (or any other PI complexity) at all. No registration, no extra kernel
13  - the in-kernel PI implementation is streamlined around the mutex
22 The short reply: user-space PI helps achieving/improving determinism for
24 determinism and well-bound latencies. Even in the worst-case, PI will
65 Currently (without PI), if a high-prio and a low-prio task shares a lock
77 As mentioned before, the userspace fastpath of PI-enabled pthread
93 own TID into the futex value], and attaches a 'PI state' structure to
94 the futex-queue. The pi_state includes an rt-mutex, which is a PI-aware,
112 Note that under this approach, contrary to previous PI-futex approaches,
113 there is no prior 'registration' of a PI-futex. [which is not quite
116 Also, under this scheme, 'robustness' and 'PI' are two orthogonal
118 robust-futex, PI-futex, robust+PI-futex.