Files
linux/Documentation
Paul E. McKenney db4cb76861 doc: Remove obsolete kernel-per-CPU-kthreads RCU_FAST_NO_HZ advice
This document advises building with both CONFIG_NO_HZ=y and
CONFIG_RCU_FAST_NO_HZ=y.  However, CONFIG_NO_HZ=y offloads callbacks from
all nohz_full CPUs, and CPUs with offloaded callbacks do not benefit from
CONFIG_RCU_FAST_NO_HZ=y.  Quite the opposite: CONFIG_RCU_FAST_NO_HZ=y
simply adds a bit of idle entry/exit overhead.

This commit therefore changes that advice to only CONFIG_NO_HZ=y.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-11-30 17:23:06 -08:00
..
2021-09-02 18:04:17 +02:00
2021-08-27 00:56:34 +10:00
2021-09-13 16:32:46 -07:00