qm: add documentation on configuring multiqueue for windows guests

Signed-off-by: Stefan Sterz <s.sterz@proxmox.com>

diff --git a/qm.adoc b/qm.adoc
index 86304195c3a8692f09371ae7db75f17591c777c2..711fa3f02d9729bfd7196d6f9c9b933d190f6e48 100644 (file)
--- a/qm.adoc
+++ b/qm.adoc
@@ -780,6 +780,16 @@ ethtool command:
 
 where X is the number of the number of vCPUs of the VM.
 
+To configure a Windows guest for Multiqueue install the
+https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/stable-virtio/virtio-win.iso[
+Redhat VirtIO Ethernet Adapter drivers], then adapt the NIC's configuration as
+follows. Open the device manager, right click the NIC under "Network adapters",
+and select "Properties". Then open the "Advanced" tab and select "Receive Side
+Scaling" from the list on the left. Make sure it is set to "Enabled". Next,
+navigate to "Maximum number of RSS Queues" in the list and set it to the number
+of vCPUs of your VM. Once you verified that the settings are correct, click "OK"
+to confirm them.
+
 You should note that setting the Multiqueue parameter to a value greater
 than one will increase the CPU load on the host and guest systems as the
 traffic increases. We recommend to set this option only when the VM has to