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| /openbmc/linux/io_uring/ |
| H A D | rsrc.c | b000ae0e Wed Feb 22 08:36:50 CST 2023 Pavel Begunkov <asml.silence@gmail.com> io_uring/rsrc: optimise single entry advance
Iterating within the first bvec entry should be essentially free, but we
use iov_iter_advance() for that, which shows up in benchmark profiles
taking up to 0.5% of CPU. Replace it with a hand coded version.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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