netdev - Re: [PATCHv3 bpf-next 5/5] selftests/bpf: Add attach bench test

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Date:   Wed, 27 Apr 2022 16:27:59 -0700
From:   Andrii Nakryiko <andrii.nakryiko@...il.com>
To:     Jiri Olsa <jolsa@...nel.org>
Cc:     Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andrii@...nel.org>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Networking <netdev@...r.kernel.org>, bpf <bpf@...r.kernel.org>,
        lkml <linux-kernel@...r.kernel.org>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        John Fastabend <john.fastabend@...il.com>,
        KP Singh <kpsingh@...omium.org>,
        Steven Rostedt <rostedt@...dmis.org>
Subject: Re: [PATCHv3 bpf-next 5/5] selftests/bpf: Add attach bench test

On Wed, Apr 27, 2022 at 2:04 PM Jiri Olsa <jolsa@...nel.org> wrote:
>
> Adding test that reads all functions from ftrace available_filter_functions
> file and attach them all through kprobe_multi API.
>
> It also prints stats info with -v option, like on my setup:
>
>   test_bench_attach: found 48712 functions
>   test_bench_attach: attached in   1.069s
>   test_bench_attach: detached in   0.373s
>
> Signed-off-by: Jiri Olsa <jolsa@...nel.org>
> ---

LGTM.

Acked-by: Andrii Nakryiko <andrii@...nel.org>

>  .../bpf/prog_tests/kprobe_multi_test.c        | 133 ++++++++++++++++++
>  .../selftests/bpf/progs/kprobe_multi_empty.c  |  12 ++
>  2 files changed, 145 insertions(+)
>  create mode 100644 tools/testing/selftests/bpf/progs/kprobe_multi_empty.c
>

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