Re: [PATCH net-next v2 0/2] add benchmark selftest and optimization for ptr_ring

[Michael S. Tsirkin]

On Fri, Jun 25, 2021 at 11:18:54AM +0800, Yunsheng Lin wrote:
> Patch 1: add a selftest app to benchmark the performance
>          of ptr_ring.
> Patch 2: make __ptr_ring_empty() checking more reliable
>          and use the just added selftest to benchmark the
>          performance impact.
> 
> V2: add patch 1 and add performance data for patch 2.

Thanks for the patches!
There are some things to improve there - I sent comments
in response to invididual patches.

> Yunsheng Lin (2):
>   selftests/ptr_ring: add benchmark application for ptr_ring
>   ptr_ring: make __ptr_ring_empty() checking more reliable
> 
>  MAINTAINERS                                      |   5 +
>  include/linux/ptr_ring.h                         |  25 ++-
>  tools/testing/selftests/ptr_ring/Makefile        |   6 +
>  tools/testing/selftests/ptr_ring/ptr_ring_test.c | 249 +++++++++++++++++++++++
>  tools/testing/selftests/ptr_ring/ptr_ring_test.h | 150 ++++++++++++++
>  5 files changed, 426 insertions(+), 9 deletions(-)
>  create mode 100644 tools/testing/selftests/ptr_ring/Makefile
>  create mode 100644 tools/testing/selftests/ptr_ring/ptr_ring_test.c
>  create mode 100644 tools/testing/selftests/ptr_ring/ptr_ring_test.h
> 
> -- 
> 2.7.4