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SubjectRe: [PATCH 0/2] optimise iov_iter
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On 19/11/2020 16:46, Jens Axboe wrote:
> On 11/19/20 8:29 AM, Pavel Begunkov wrote:
>> The first patch optimises iov_iter_npages() for the bvec case, and the
>> second helps code generation to kill unreachable code.
>>
>> Pavel Begunkov (2):
>> iov_iter: optimise iov_iter_npages for bvec
>> iov_iter: optimise iter type checking
>>
>> include/linux/uio.h | 10 +++++-----
>> lib/iov_iter.c | 10 +++++-----
>> 2 files changed, 10 insertions(+), 10 deletions(-)
>
> Nice! Tested this and confirmed both the better code generation,
> and reduction in overhead in iov_iter_npages().

Thanks! Did you find t-put/etc. boost with your setup?

>
> Reviewed-by: Jens Axboe <axboe@kernel.dk>

--
Pavel Begunkov

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