[PATCH v3 09/15] docs: add io_queue as isolcpus options

Daniel Wagner
2024-08-06T12:07:33Z

isolcpus learned a new io_queue options. Explain what it does.

Signed-off-by: Daniel Wagner <dwagner@suse.de>
---
Documentation/admin-guide/kernel-parameters.txt | 9 +++++++++
1 file changed, 9 insertions(+)

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index f1384c7b59c9..a416cc969e97 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -2446,6 +2446,15 @@
housekeeping CPUs has no influence on those
queues.

+ io_queue
+ Isolate CPUs from IO queue placement by
+ multiqueue drivers. Multiqueue drivers are
+ allocating and distributing IO queues on all
+ CPUs. When this option is set, the drivers will
+ allocated only IO queues on the housekeeping
+ CPUs. This option can't be used toghether with
+ managed_irq, use one or the other.
+
The format of <cpu-list> is described above.

iucv= [HW,NET]

--
2.46.0