Re: [PATCH v2 7/9] md: introduce a new struct for IO serialization

[Song Liu <liu.song.a23@xxxxxxxxx>]

On Thu, Nov 21, 2019 at 2:37 AM <jgq516@xxxxxxxxx> wrote:
>
> From: Guoqing Jiang <guoqing.jiang@xxxxxxxxxxxxxxx>
>
> Obviously, IO serialization could cause the degradation of
> performance a lot. In order to reduce the degradation, so a
> rb interval tree is added in raid1 to speed up the check of
> collision.

Could you please share some performance measurement with and
without the new data structure?

Otherwise, the set looks good to me.

Thanks,
Song