But for other configurations it is worse:
config NO_HZ_FULL
bool "Full dynticks system (tickless)"
...
This is implemented at the expense of some overhead in user <-> kernel
transitions: syscalls, exceptions and interrupts. Even when it's
dynamically off.
Say N.
Upstream commit 176b8906 changed the description regarding NO_HZ_FULL:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=176b8906c399a170886ea4bad5b24763c6713d61
> By default, without passing the nohz_full parameter, this behaves just
> like NO_HZ_IDLE.
>
> If you're a distro say Y.
