On Wed, 13 Oct 2021 09:57:10 +0100, Pavel Begunkov wrote: > ./io_uring -d32 -s32 -c32 -b512 -p1 /dev/nullb0 > ~3.3 MIOPS vs 3.5 MIOPS, so gives around extra ~4-5%. > > The main part is caching struct block_device + some inlining. > > v2: without applied patches, merge previous 6/6 into the second patch > get rid of helpers (Jens, Christoph) > kill bdev_inode and move inode into bdev (Christoph) > > [...] Applied, thanks! [1/3] block: cache bdev in struct file for raw bdev IO commit: 82f652990a4ade2df9d6475ad82f4dd22a3265f6 [3/3] blk-mq: optimise *end_request non-stat path commit: e945e2edb67048c42527089cd9938454ae4f9c04 Best regards, -- Jens Axboe