
The VFIO driver work for Linux 5.12 isn't too significant but the batched page pinning will be of interest to some. Up to now the VFIO kernel code has relied on pinning one 4K page at a time. That major efficiency bottleneck has been addressed with the batched page pinning to handle batches of 512 at a time.
With this optimization pursued by Oracle's Daniel Jordan, he found that






