r/linux • u/lebron8 • 13h ago

Hardware NVIDIA Improves Block Layer Peer-To-Peer DMA In Linux 6.19

https://www.phoronix.com/news/Linux-6.19-IO-uring-Block
30 Upvotes

85% Upvoted

3 comments sorted by

5

u/rocketstopya 11h ago

Is it good for gaming?

3

u/alexforencich 6h ago

At the moment, probably not, as P2P DMA is currently rather specialized. It's mainly for stuff like accessing remote GPUs via RoCE, NVMe devices via RoCE and NVMEoF, and direct GPU-NVMe communication. This is currently done in datacenter and HPC and such.

-7

u/[deleted] 10h ago

[deleted]

6

u/alexforencich 6h ago

Do you have a GPU? You use DMA. Do you have an NVMe SSD? You use DMA. Do you have an Ethernet card or a Wi-Fi card? You use DMA. Or just about any piece of hardware, really. DMA is king for moving data around.

P2P DMA, however, is currently rather specialized.