CONFIG_TICKLESS_IDLE

This option suppresses periodic system clock interrupts whenever the kernel becomes idle. This permits the system to remain in a power saving state for extended periods without having to wake up to service each tick as it occurs.

As a policy, an architecture should always provide support for tickless in the microkernel. If an architecture also provides support for nanokernel systems, it must select the NANOKERNEL_TICKLESS_IDLE_SUPPORTED kconfig option.

Symbol:

TICKLESS_IDLE
Type:

bool
Value:

“n”
User value:

(no user value)
Visibility:

“n”
Is choice item:

false
Is defined:

true
Is from env.:

false
Is special:

false
Prompts:
  • “Tickless idle” if MICROKERNEL || NANOKERNEL_TICKLESS_IDLE_SUPPORTED (value: “y”)
Default values:
  • y (value: “y”)
  • Condition: MICROKERNEL || NANOKERNEL_TICKLESS_IDLE_SUPPORTED (value: “y”)
Selects:

(no selects)
Reverse (select-related) dependencies:
 

(no reverse dependencies)
Additional dependencies from enclosing menus and ifs:
 

ADVANCED_POWER_MANAGEMENT (value: “n”)
Locations:
  • ../kernel/Kconfig:210