On 2/4/21 10:02 AM, Emil Dico wrote:
Hello,
Anyone had issues with openstack on computes, having the ovs-vswitchd
showing cpu usage very high? Even without instances, it's showing
sometimes 500%, looks like when bonding is set.
ovs-vswitchd (Open vSwitch) 2.12.0
DPDK 18.11.2
--
*Regards,*
**
*Dico Emil
It may be that traffic data is being routed through the kernel rather
than using data fastpath. When using DPDK you need user-space bridges
with type netdev and user-space bonds. Using OVS bridges without setting
the type to netdev will not use fastpath for data, and attaching a Linux
kernel bond or using traditional OVS bonding will also not use fastpath
data.
Details for using OVS with DPDK are here:
https://docs.openvswitch.org/en/latest/howto/dpdk/
If you are using a Linux distribution that uses ifcfg files for network
interfaces you want TYPE=OVSUserBridge for the bridge and
TYPE=OVSDPDKBond for the bond interface configuration file.
--
Dan Sneddon | Senior Principal Software Engineer
dsned...@redhat.com | redhat.com/cloud
dsneddon:irc | @dxs:twitter
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