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CONFIG_TICKLESS_IDLE

Tickless idle

Type: bool

Help

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.

Defaults

• “y” if SYS_POWER_MANAGEMENT || TICKLESS_CAPABLE

Symbols that select this symbol

• SYS_POWER_MANAGEMENT

Kconfig definition

At kernel/Kconfig:744

Included via Kconfig:10 → Kconfig.zephyr:31

Menu path: (top menu) → General Kernel Options

config TICKLESS_IDLE
    bool
    prompt "Tickless idle"
    default "y" if SYS_POWER_MANAGEMENT || TICKLESS_CAPABLE
    help
      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.

(Definitions include propagated dependencies, including from if’s and menus.)