kvm: add support for dpdk-accelerated openvswitch-backed NICs in VMs #1605
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This was referenced Aug 27, 2021
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Hello,
This patch further builds on #1604 to implement support for dpdk-accelerated openvswitch-backed NICs in VMs. As persistent hugepages support is required for this feature, this also includes the patch from #1604.
DPDK-accelerated OVS might not be for everyone, but if you're handling lots of small packets (routing, RTC etc) and depending on your workload, you might see anywhere from 2x to 10x the performance of regular tap devices in VMs.
Again, this is way too hacky to consider for merge right now, but I'd like to investigate if there's interest from the community for further development (perhaps @sipgate might want to take a look if they're still on the ganeti train?).
To help facilitate testing, I've packaged this PR for debian bullseye and written some generic instructions to set it up (hopefully) quickly here: https://github.com/modulus-sa/ganeti/wiki
I'll try to further elaborate on this in the coming weeks in this PR.