]> git.droids-corp.org - dpdk.git/commit
doc: simplify Linux paramter rcu_nocbs in PVP benchmark
authorTudor Brindus <me@tbrindus.ca>
Tue, 8 Feb 2022 03:50:18 +0000 (22:50 -0500)
committerThomas Monjalon <thomas@monjalon.net>
Wed, 16 Mar 2022 19:17:49 +0000 (20:17 +0100)
commit959c84ed059ed2c8db497114f976ca197a14c56b
treeaf522c88a247174f10b6e63182f4d673f24db389
parentba4132c5a4d91529f96d4f67fbe7f7c7c3c7e204
doc: simplify Linux paramter rcu_nocbs in PVP benchmark

From Documentation/admin-guide/kernel-parameters.txt, specifically the
last sentence:

 nohz_full=      [KNL,BOOT,SMP,ISOL]
        The argument is a cpu list, as described above.
        In kernels built with CONFIG_NO_HZ_FULL=y, set
        the specified list of CPUs whose tick will be stopped
        whenever possible. The boot CPU will be forced outside
        the range to maintain the timekeeping.  Any CPUs
        in this list will have their RCU callbacks offloaded,
        just as if they had also been called out in the
        rcu_nocbs= boot parameter.

The kernel or-s the nohz_full cpumask into the rcu_nocbs cpumask at
startup, and uses that.

Signed-off-by: Tudor Brindus <me@tbrindus.ca>
doc/guides/howto/pvp_reference_benchmark.rst