linux-kernel - Re: [PATCH v1 1/3] perf ilist: Don't display deprecated events

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Message-ID: <aPRTQLcOBtHiTGms@google.com>
Date: Sun, 19 Oct 2025 11:56:00 +0900
From: Namhyung Kim <namhyung@...nel.org>
To: Ian Rogers <irogers@...gle.com>
Cc: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
	Jiri Olsa <jolsa@...nel.org>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Howard Chu <howardchu95@...il.com>,
	Gautam Menghani <gautam@...ux.ibm.com>,
	linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 1/3] perf ilist: Don't display deprecated events

Hi Ian,

On Thu, Oct 16, 2025 at 03:22:26PM -0700, Ian Rogers wrote:
> Unsupported legacy events are flagged as deprecated. Don't display
> these events in ilist as they won't open and there are over 1,000
> legacy cache events.

Off-topic, any chance to integrate this into a perf command?
It'd be convenient if we can call this like `perf list --interactive`
or some other way.

Thanks,
Namhyung

> 
> Signed-off-by: Ian Rogers <irogers@...gle.com>
> ---
>  tools/perf/python/ilist.py | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/tools/perf/python/ilist.py b/tools/perf/python/ilist.py
> index 9d6465c60df3..69005a88872e 100755
> --- a/tools/perf/python/ilist.py
> +++ b/tools/perf/python/ilist.py
> @@ -439,6 +439,8 @@ class IListApp(App):
>                  pmu_node = pmus.add(pmu_name)
>                  try:
>                      for event in sorted(pmu.events(), key=lambda x: x["name"]):
> +                        if "deprecated" in event:
> +                            continue
>                          if "name" in event:
>                              e = event["name"].lower()
>                              if "alias" in event:
> -- 
> 2.51.0.858.gf9c4a03a3a-goog
>