linux-kernel - [PATCH v2 2/4] perf evsel: Add verbose 3 print of evsel name when opening

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Date:   Thu,  1 Jun 2023 01:29:52 -0700
From:   Ian Rogers <irogers@...gle.com>
To:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Ian Rogers <irogers@...gle.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Kan Liang <kan.liang@...ux.intel.com>,
        Rob Herring <robh@...nel.org>,
        Zhengjun Xing <zhengjun.xing@...ux.intel.com>,
        Ravi Bangoria <ravi.bangoria@....com>,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org,
        Thomas Richter <tmricht@...ux.ibm.com>
Subject: [PATCH v2 2/4] perf evsel: Add verbose 3 print of evsel name when opening

It is often useful to know not just the attribute and perf_event_open
details when opening an evsel, but also the evsel's name. Add this
debug output for verbose 3 so that it won't interfere with the current
verbose 2 output.

Signed-off-by: Ian Rogers <irogers@...gle.com>
---
 tools/perf/util/evsel.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 46da3f0bb47e..779bc2b574f4 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -2038,6 +2038,7 @@ static int evsel__open_cpu(struct evsel *evsel, struct perf_cpu_map *cpus,
 fallback_missing_features:
 	evsel__disable_missing_features(evsel);
 
+	pr_debug3("Opening: %s\n", evsel__name(evsel));
 	display_attr(&evsel->core.attr);
 
 	for (idx = start_cpu_map_idx; idx < end_cpu_map_idx; idx++) {
-- 
2.41.0.rc0.172.g3f132b7071-goog