VirtIO VSOCK MSG_ZEROCOPY To Begin Landing For Linux 6.7: More Performance

[phoronix]

Phoronix: VirtIO VSOCK MSG_ZEROCOPY To Begin Landing For Linux 6.7: More Performance

The first of three parts for MSG_ZEROCOPY preparations for the VirtIO-Vsock driver have been queued into net-next ahead of planned introduction in the Linux 6.7 kernel as another means of achieving greater performance within virtual machines...

https://www.phoronix.com/news/VirtIO-Vsock-MSG-Zerocopy

[Quackdoc]

This could be very nice, I would love to see waypipe support vsock for this, not something im super interested in, but it would be great for secure apps (such as qubes alternative)

[piorunz]

What is "MSG_ZEROCOPY feature for the VirtIO/Vsock"? No idea what I am reading about..

[andrei_me]

What is "MSG_ZEROCOPY feature for the VirtIO/Vsock"? No idea what I am reading about..

it is all related to virtualization/KVM

VirtIO contains the optimized driver/stuff for virtualization
Vsock = virtual socket

MSG_ZEROCOPY is like other zero copy stuff, instead of transmitting the data through the socket, it reads directly from memory, like dmabuf

That is my understanding of it, might be wrong though

[piorunz]

it is all related to virtualization/KVM

VirtIO contains the optimized driver/stuff for virtualization
Vsock = virtual socket

MSG_ZEROCOPY is like other zero copy stuff, instead of transmitting the data through the socket, it reads directly from memory, like dmabuf

That is my understanding of it, might be wrong though

Thanks!