Navigation: Linux Kernel Driver DataBase - web LKDDB: Main index - N index
The Linux kernel configuration item CONFIG_NO_HZ_FULL
:
( CONFIG_SMP ) && ( CONFIG_HAVE_CONTEXT_TRACKING_USER ) && ( CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN )
Adaptively try to shutdown the tick whenever possible, even when the CPU is running tasks. Typically this requires running a single task on the CPU. Chances for running tickless are maximized when the task mostly runs in userspace and has few kernel activity.
You need to fill up the nohz_full boot parameter with the desired range of dynticks CPUs to use it. This is implemented at the expense of some overhead in user <-> kernel transitions: syscalls, exceptions and interrupts.
By default, without passing the nohz_full parameter, this behaves just like NO_HZ_IDLE.
If you're a distro say Y.
Raw data from LKDDb:
(none)
This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).
The data is retrived from:
Popular queries:
Navigation: Linux Kernel Driver DataBase - web LKDDB: main index - N index
Automatically generated (in year 2024). See also LKDDb sources on GitLab