VMs have a very high amount of multiqueues enabled.

Solution Verified - Updated -

Issue

The VMs have a very high amount of multiqueues enabled. This can be an issue when you have big VMs with a lot of CPU and can bring more load than needed.

The VMs have 420 queues open towards the hypervisor, while we only have 4 queues per physical nic open.

# ovs-appctl dpif-netdev/pmd-rxq-show |grep vhu|wc -l
420
# ovs-appctl dpif-netdev/pmd-rxq-show |grep dpdk0|wc -l
4
# ovs-appctl dpif-netdev/pmd-rxq-show |grep dpdk1|wc -l
4

Environment

  • Red Hat Openstack Platform 17.1 (RHOSP17.1)

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.

Current Customers and Partners

Log in for full access

Log In

New to Red Hat?

Learn more about Red Hat subscriptions

Using a Red Hat product through a public cloud?

How to access this content