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Containers access disks and devices the same as anything on the host. For networking there's just as many options as with VMs. You can directly pass a specific
by ecnahc515 7y ago
Containers access disks and devices the same as anything on the host. For networking there's just as many options as with VMs. You can directly pass a specific NIC to the container without any overhead, and you can also use other options that have no more overhead than a regular network interface on the host.
There's no way virtualized access to IO should be better than the host, so the containers should be no worse than that.
- nullwasamistake 7y agoThere's more software overhead for container networking because the host needs to maintain NAT between the containers and host network. With SR-IOV on VM's each gets it's own network stack and it's handled in hardware by the NIC. VM networking is as fast as the host. Container networking is not