Re: [PATCH v2] t/io_uring: Vectored fixed buffer test support for nvme passthrough path

On Wed, 17 Sep 2025 06:58:38 +0000, Xiaobing Li wrote:
> The current kernel NVMe passthrough path already supports vectored IO
> when using fixed buffers, but fio has not yet adapted it. This patch
> aims to add a corresponding test interface in fio.
> 
> Test results:
> 
> taskset -c 1 t/io_uring -b512 -d64 -c2 -s2 -p1 -F1 -B1 -O0 -n1 -V1 -u1 -r4 /dev/ng1n1
> submitter=0, tid=6179, file=/dev/ng1n1, nfiles=1, node=-1
> polled=1, fixedbufs=1, register_files=1, buffered=1, QD=64
> Engine=io_uring, sq_ring=64, cq_ring=64
> IOPS=289.78K, BW=141MiB/s, IOS/call=1/1
> IOPS=294.68K, BW=143MiB/s, IOS/call=1/1
> IOPS=295.26K, BW=144MiB/s, IOS/call=1/1
> Exiting on timeout
> Maximum IOPS=295.26K
> 
> [...]

Applied, thanks!

[1/1] t/io_uring: Vectored fixed buffer test support for nvme passthrough path
      commit: 80d72cb05a6c54ea1b256dcd69e3e4fdc9294f4f

Best regards,
-- 
Jens Axboe