Re: [PATCH] uio: Replace mutex info_lock with percpu_ref to improve performance

[kanie]

在 2022/2/8 15:25, Greg KH 写道:
> On Tue, Feb 08, 2022 at 03:19:20PM +0800, Guixin Liu wrote:
> > This patch includes a modification to repace mutex info_lock with
> > percpu_ref, in order to improve uio performance.
> How does it improve performance?  What benchmark are you using and what
> are the results?
>
> These changes are quite complex, you need to better describe these in
> order to be able to have them accepted.
>
> thanks,
>
> greg k-h

okay, I will supplement the performance-test result later.

Guixin Liu