Re: [PATCH 0/2] optimise iov_iter

[Pavel Begunkov]

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@xxxxxxxxx>

-- 
Pavel Begunkov