Re: Performance improvement with 6d740fb01b9f0f5ea7a82f4d5e458d91940a19ee

[Stefan Hajnoczi]

On Thu, 25 May 2023 at 06:18, Lukáš Doktor <ldoktor@redhat.com> wrote:
> the perf-ci detected and bisected the 6d740fb - aio-posix: do not nest poll 
> handlers - as a performance improvement when using multiple concurrent jobs 
> and 4k (22%) as well as 1024k (63%) blocks on aarch64 (on a slow rotational 
> disk).
>
>     
> https://ldoktor.github.io/tmp/RedHat-virtlab-arm09/v8.0.0/150-improvement.html
>
> Based on the commit message I guess it's expected so take this just as a 
> record of an improvement.

The commit was not intended to change performance and I'm not sure why
it happens!

Thanks for letting me know.

Stefan