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Commit 74ec14f3 authored by Arun Kalyanasundaram's avatar Arun Kalyanasundaram Committed by Arnaldo Carvalho de Melo
Browse files

perf script python: Add sample_read to dict 



Provide time_enabled, time_running and counter value in the perf_sample
dict.

Signed-off-by: default avatarArun Kalyanasundaram <arunkaly@google.com>
Acked-by: default avatarJiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: David Carrillo-Cisneros <davidcc@google.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Seongjae Park <sj38.park@gmail.com>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/20170721220422.63962-4-arunkaly@google.com


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 892e76b2

tools/perf/util/scripting-engines/trace-event-python.c

+51 −0
Original line number Diff line number Diff line
@@ -391,6 +391,56 @@ static PyObject *python_process_callchain(struct perf_sample *sample, 
	return pylist;

}



static PyObject *get_sample_value_as_tuple(struct sample_read_value *value)

{

	PyObject *t;



	t = PyTuple_New(2);

	if (!t)

		Py_FatalError("couldn't create Python tuple");

	PyTuple_SetItem(t, 0, PyLong_FromUnsignedLongLong(value->id));

	PyTuple_SetItem(t, 1, PyLong_FromUnsignedLongLong(value->value));

	return t;

}



static void set_sample_read_in_dict(PyObject *dict_sample,

					 struct perf_sample *sample,

					 struct perf_evsel *evsel)

{

	u64 read_format = evsel->attr.read_format;

	PyObject *values;

	unsigned int i;



	if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) {

		pydict_set_item_string_decref(dict_sample, "time_enabled",

			PyLong_FromUnsignedLongLong(sample->read.time_enabled));

	}



	if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) {

		pydict_set_item_string_decref(dict_sample, "time_running",

			PyLong_FromUnsignedLongLong(sample->read.time_running));

	}



	if (read_format & PERF_FORMAT_GROUP)

		values = PyList_New(sample->read.group.nr);

	else

		values = PyList_New(1);



	if (!values)

		Py_FatalError("couldn't create Python list");



	if (read_format & PERF_FORMAT_GROUP) {

		for (i = 0; i < sample->read.group.nr; i++) {

			PyObject *t = get_sample_value_as_tuple(&sample->read.group.values[i]);

			PyList_SET_ITEM(values, i, t);

		}

	} else {

		PyObject *t = get_sample_value_as_tuple(&sample->read.one);

		PyList_SET_ITEM(values, 0, t);

	}

	pydict_set_item_string_decref(dict_sample, "values", values);

}



static PyObject *get_perf_sample_dict(struct perf_sample *sample,

					 struct perf_evsel *evsel,

					 struct addr_location *al,
@@ -422,6 +472,7 @@ static PyObject *get_perf_sample_dict(struct perf_sample *sample, 
			PyLong_FromUnsignedLongLong(sample->time));

	pydict_set_item_string_decref(dict_sample, "period",

			PyLong_FromUnsignedLongLong(sample->period));

	set_sample_read_in_dict(dict_sample, sample, evsel);

	pydict_set_item_string_decref(dict, "sample", dict_sample);



	pydict_set_item_string_decref(dict, "raw_buf", PyString_FromStringAndSize(