linux-kernel - [PATCH v3] perf script python: Add the ins

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Message-Id: <20240809021231.3587558-1-fzczx123@gmail.com>
Date: Fri,  9 Aug 2024 02:12:30 +0000
From: Zixian Cai <fzczx123@...il.com>
To: 
Cc: Zixian Cai <fzczx123@...il.com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Namhyung Kim <namhyung@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
	Jiri Olsa <jolsa@...nel.org>,
	Ian Rogers <irogers@...gle.com>,
	"Liang, Kan" <kan.liang@...ux.intel.com>,
	James Clark <james.clark@...aro.org>,
	Ben Gainey <ben.gainey@....com>,
	Paran Lee <p4ranlee@...il.com>,
	linux-perf-users@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v3] perf script python: Add the ins_lat field to event handler

For example, when using the Alder Lake PMU memory load event, the instruction latency is stored in ins_lat, while the cache latency is stored in weight.

This patch reports the ins_lat field for Python scripting.

Signed-off-by: Zixian Cai <fzczx123@...il.com>
Reviewed-by: Adrian Hunter <adrian.hunter@...el.com>
---
v3) address review comments
v2) rebase on top of perf-tools-next

 tools/perf/util/scripting-engines/trace-event-python.c | 5 ++++-
 1 file changed, 4 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 fb00f3ad6815..6971dd6c231f 100644
--- a/tools/perf/util/scripting-engines/trace-event-python.c
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -888,6 +888,8 @@ static PyObject *get_perf_sample_dict(struct perf_sample *sample,
 	set_sample_read_in_dict(dict_sample, sample, evsel);
 	pydict_set_item_string_decref(dict_sample, "weight",
 			PyLong_FromUnsignedLongLong(sample->weight));
+	pydict_set_item_string_decref(dict_sample, "ins_lat",
+			PyLong_FromUnsignedLong(sample->ins_lat));
 	pydict_set_item_string_decref(dict_sample, "transaction",
 			PyLong_FromUnsignedLongLong(sample->transaction));
 	set_sample_datasrc_in_dict(dict_sample, sample);
@@ -1317,7 +1319,7 @@ static void python_export_sample_table(struct db_export *dbe,
 	struct tables *tables = container_of(dbe, struct tables, dbe);
 	PyObject *t;

-	t = tuple_new(27);
+	t = tuple_new(28);

 	tuple_set_d64(t, 0, es->db_id);
 	tuple_set_d64(t, 1, es->evsel->db_id);
@@ -1346,6 +1348,7 @@ static void python_export_sample_table(struct db_export *dbe,
 	tuple_set_s32(t, 24, es->sample->flags);
 	tuple_set_d64(t, 25, es->sample->id);
 	tuple_set_d64(t, 26, es->sample->stream_id);
+	tuple_set_u32(t, 27, es->sample->ins_lat);

 	call_object(tables->sample_handler, t, "sample_table");

--
2.25.1