Re: [PATCH v4 4/4] selftests/bpf: Add kptr-xchg benchmark

On 2026/7/29 上午10:28, Chenguang Zhao wrote:
> From: Chenguang Zhao <[email protected]>
> 
> Add a bpf selftest benchmark that exercises bpf_kptr_xchg() in a tight loop
> so helper vs inlined JIT paths can be compared on supported architectures.
> 
> Signed-off-by: Chenguang Zhao <[email protected]>
> ---
>   tools/testing/selftests/bpf/Makefile          |  2 +
>   tools/testing/selftests/bpf/bench.c           |  2 +
>   .../selftests/bpf/benchs/bench_kptr_xchg.c    | 96 +++++++++++++++++++
>   .../selftests/bpf/progs/kptr_xchg_bench.c     | 49 ++++++++++
>   4 files changed, 149 insertions(+)
>   create mode 100644 tools/testing/selftests/bpf/benchs/bench_kptr_xchg.c
>   create mode 100644 tools/testing/selftests/bpf/progs/kptr_xchg_bench.c

Hi Chenguang,

Please send this generic selftest patch to the BPF mailing list.
It should be routed through the bpf-next tree.

Also, please use the '[PATCH bpf-next]' subject prefix to specify
that this is destined for the bpf-next tree.

For more info, please see:
https://www.kernel.org/doc/html/latest/bpf/bpf_devel_QA.html

Thanks,
Tiezhu