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6d35969a55
zephyr/kernel
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Krzysztof Chruściński 6d35969a55 kernel: sched: Optimize sleeping function 
Accessing system timer registers can be costly and it shall be avoided
if possible. When thread is waken up in z_tick_sleep it may be because
timeout expired or because thread was waken up before sleeping period
passed.

Add function to detect if timeout is aborted (before it was expired).
Use it in the sleep function and avoid reading system ticks if timeout
was not aborted.

Signed-off-by: Krzysztof Chruściński <krzysztof.chruscinski@nordicsemi.no>
2025-04-15 19:09:33 +02:00
..
include kernel: sched: Optimize sleeping function 2025-04-15 19:09:33 +02:00
paging
atomic_c.c
banner.c
busy_wait.c
CMakeLists.txt kernel: make order_key field in thread conditional 2025-03-08 03:38:37 +01:00
compiler_stack_protect.c security: Add default stack protection level 2024-12-20 12:37:20 +01:00
condvar.c kernel: condvar: broadcast does not always need reschedule 2025-02-03 19:51:20 +01:00
cpu_mask.c
device.c device: add new device_deinit API 2025-03-10 21:32:40 +01:00
dynamic_disabled.c
dynamic.c kernel: dynamic: simplify dynamic stack allocation 2024-12-11 21:33:00 +01:00
errno.c Revert "arch: deprecate _current" 2025-01-10 07:49:08 +01:00
events.c
fatal.c Revert "arch: deprecate _current" 2025-01-10 07:49:08 +01:00
float.c
futex.c kernel: futex: Allow for fast return on k_futex_wake() 2025-02-03 19:51:20 +01:00
idle.c llext: export spinlock debugging symbols to extensions 2025-02-11 10:11:31 +01:00
init_static.c
init.c device: allow initializing any device 2025-03-10 21:32:40 +01:00
ipi.c Revert "arch: deprecate _current" 2025-01-10 07:49:08 +01:00
irq_offload.c
Kconfig kernel: rename 'dumb' scheduler and simply call it 'simple' 2025-03-15 00:34:58 +01:00
Kconfig.device
Kconfig.init
Kconfig.mem_domain
Kconfig.obj_core kernel: Rewrite k_pipe_* API 2025-01-17 19:43:44 +01:00
Kconfig.smp
Kconfig.vm arch: mmu: do not make MMU user configurable 2025-02-19 04:59:19 +01:00
kheap.c kernel: kheap: workaround for Percepio's TraceRecorder kludge 2025-04-01 22:13:04 +02:00
mailbox.c Revert "arch: deprecate _current" 2025-01-10 07:49:08 +01:00
main_weak.c
mem_domain.c Revert "arch: deprecate _current" 2025-01-10 07:49:08 +01:00
mem_slab.c Revert "arch: deprecate _current" 2025-01-10 07:49:08 +01:00
mempool.c kernel: mempool: decouple simple alloc from aligned_alloc 2025-04-01 22:13:04 +02:00
mmu.c Revert "arch: deprecate _current" 2025-01-10 07:49:08 +01:00
msg_q.c kernel: msgq: Allow for fast returns 2025-02-03 19:51:20 +01:00
mutex.c Revert "arch: deprecate _current" 2025-01-10 07:49:08 +01:00
nothread.c kernel: Add Z_IS_TIMEOUT_RELATIVE() macro 2025-03-17 02:21:02 +01:00
obj_core.c
pipe.c k_pipe: fix trace point for blocking writes 2025-01-28 14:13:14 +01:00
pipes.c kernel: Propagate z_handle_obj_poll_events() return 2025-02-03 19:51:20 +01:00
poll.c kernel: Change z_handle_obj_poll_events() return type 2025-02-03 19:51:20 +01:00
priority_queues.c
queue.c kernel: queue: Allow for fast return 2025-02-03 19:51:20 +01:00
sched.c kernel: sched: Optimize sleeping function 2025-04-15 19:09:33 +02:00
sem.c kernel: Allow for fast return on k_sem_reset() 2025-02-03 19:51:20 +01:00
smp.c kernel: mark z_smp_current_get() with the const attribute 2025-01-10 07:49:08 +01:00
spinlock_validate.c llext: export spinlock debugging symbols to extensions 2025-02-11 10:11:31 +01:00
stack.c Revert "arch: deprecate _current" 2025-01-10 07:49:08 +01:00
system_work_q.c kernel: system_work_q: make k_work_queue_config cfg as static const 2025-04-04 21:15:40 +02:00
thread_monitor.c kernel: thread_monitor: reafactor and remove duplicate code 2025-04-04 07:42:20 +02:00
thread.c kernel: thread: fix warning of always false 2025-02-10 22:25:32 +01:00
timeout.c kernel: sched: Optimize sleeping function 2025-04-15 19:09:33 +02:00
timer.c kernel: Add Z_IS_TIMEOUT_RELATIVE() macro 2025-03-17 02:21:02 +01:00
timeslicing.c Revert "arch: deprecate _current" 2025-01-10 07:49:08 +01:00
usage.c
userspace_handler.c Revert "arch: deprecate _current" 2025-01-10 07:49:08 +01:00
userspace.c Revert "arch: deprecate _current" 2025-01-10 07:49:08 +01:00
version.c
work.c Revert "arch: deprecate _current" 2025-01-10 07:49:08 +01:00
xip.c soc: stm32: handle CCM in LINKER_GENERATOR 2025-03-07 19:54:24 +01:00