linux-kernel - Re: [PATCH 18/35] perf script python: Add machine

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Date:   Tue, 19 Jul 2022 17:43:36 -0700
From:   Ian Rogers <irogers@...gle.com>
To:     Adrian Hunter <adrian.hunter@...el.com>
Cc:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Andi Kleen <ak@...ux.intel.com>, linux-kernel@...r.kernel.org,
        kvm@...r.kernel.org
Subject: Re: [PATCH 18/35] perf script python: Add machine_pid and vcpu

On Mon, Jul 11, 2022 at 2:33 AM Adrian Hunter <adrian.hunter@...el.com> wrote:
>
> Add machine_pid and vcpu to python sample events and context switch events.
>
> Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>

Acked-by: Ian Rogers <irogers@...gle.com>

Thanks,
Ian

> ---
>  .../perf/util/scripting-engines/trace-event-python.c  | 11 ++++++++++-
>  1 file changed, 10 insertions(+), 1 deletion(-)
>
> diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
> index 3367c5479199..5bbc1b16f368 100644
> --- a/tools/perf/util/scripting-engines/trace-event-python.c
> +++ b/tools/perf/util/scripting-engines/trace-event-python.c
> @@ -861,6 +861,13 @@ static PyObject *get_perf_sample_dict(struct perf_sample *sample,
>         brstacksym = python_process_brstacksym(sample, al->thread);
>         pydict_set_item_string_decref(dict, "brstacksym", brstacksym);
>
> +       if (sample->machine_pid) {
> +               pydict_set_item_string_decref(dict_sample, "machine_pid",
> +                               _PyLong_FromLong(sample->machine_pid));
> +               pydict_set_item_string_decref(dict_sample, "vcpu",
> +                               _PyLong_FromLong(sample->vcpu));
> +       }
> +
>         pydict_set_item_string_decref(dict_sample, "cpumode",
>                         _PyLong_FromLong((unsigned long)sample->cpumode));
>
> @@ -1509,7 +1516,7 @@ static void python_do_process_switch(union perf_event *event,
>                 np_tid = event->context_switch.next_prev_tid;
>         }
>
> -       t = tuple_new(9);
> +       t = tuple_new(11);
>         if (!t)
>                 return;
>
> @@ -1522,6 +1529,8 @@ static void python_do_process_switch(union perf_event *event,
>         tuple_set_s32(t, 6, machine->pid);
>         tuple_set_bool(t, 7, out);
>         tuple_set_bool(t, 8, out_preempt);
> +       tuple_set_s32(t, 9, sample->machine_pid);
> +       tuple_set_s32(t, 10, sample->vcpu);
>
>         call_object(handler, t, handler_name);
>
> --
> 2.25.1
>