[PATCH 1/1] nvme-rdma: Use unlikely macro in the fast path

[Max Gurtovoy]

On 8/15/2017 12:08 PM, Sagi Grimberg wrote:
>> This patch slightly improves performance (mainly for small block sizes).
>
> This looks fine,
>
> Looks fine,
>
> Reviewed-by: Sagi Grimberg <sagi at grimberg.me>
>
> Since you mentioned it, can you quantify what that bought us?

1 subsystem, 1 ns (null blk backing device)


bs      (w/w.o)
---    ---------
512:    912k/900k
1k:     912k/900k
2k :    911k/901k
4k:     922k/906k
8k:     568k/569k
16k:    288k/288k

-Max