It doesn't actually go through a "real network" at all, the VM speaks 9p to the ... | Hacker News

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linuxhackerman on Oct 14, 2022 | parent | context | favorite | on: Digging into a QEMU problem of slow data copying

It doesn't actually go through a "real network" at all, the VM speaks 9p to the host via a virtio pipe (not sure what the technically correct term for this is) so there's none of the overhead that you'd have with emulating a network device and encapsulating it all in Ethernet/IP/TCP.

apitman on Oct 14, 2022 [–]

Ah right I forgot QEMU has built in 9p on Linux. Sadly it's not yet available for Windows hosts, though there's a patch in the works.

You have any suggestions for getting a foothold in the QEMU codebase?

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