CONFIG_NO_HZ: Old Idle dynticks config

General informations

The Linux kernel configuration item CONFIG_NO_HZ has multiple definitions:

Old Idle dynticks config found in kernel/time/Kconfig

The configuration item CONFIG_NO_HZ:

• prompt: Old Idle dynticks config
• type: bool
• depends on: (none)
• defined in kernel/time/Kconfig
• found in Linux kernels: 3.10–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.8, 6.9-rc+HEAD

Help text

This is the old config entry that enables dynticks idle. We keep it around for a little while to enforce backward compatibility with older config files.

Tickless System (Dynamic Ticks) found in kernel/time/Kconfig

The configuration item CONFIG_NO_HZ:

• prompt: Tickless System (Dynamic Ticks)
• type: bool
• depends on: ! CONFIG_ARCH_USES_GETTIMEOFFSET && CONFIG_GENERIC_CLOCKEVENTS
• defined in kernel/time/Kconfig
• found in Linux kernels: 2.6.21–2.6.39, 3.0–3.9

Help text

This option enables a tickless system: timer interrupts will only trigger on an as-needed basis both when the system is busy and when the system is idle.

Hardware

LKDDb

Raw data from LKDDb:

• (none)

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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