linux-kernel - [PATCH v2 10/11] perf python: Add evlist.config to set up record options

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Message-Id: <20250228222308.626803-11-irogers@google.com>
Date: Fri, 28 Feb 2025 14:23:07 -0800
From: Ian Rogers <irogers@...gle.com>
To: 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>, 
	Adrian Hunter <adrian.hunter@...el.com>, Kan Liang <kan.liang@...ux.intel.com>, 
	Yicong Yang <yangyicong@...ilicon.com>, James Clark <james.clark@...aro.org>, 
	"Dr. David Alan Gilbert" <linux@...blig.org>, Levi Yun <yeoreum.yun@....com>, Ze Gao <zegao2021@...il.com>, 
	Weilin Wang <weilin.wang@...el.com>, Xu Yang <xu.yang_2@....com>, 
	linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org, 
	Howard Chu <howardchu95@...il.com>
Cc: Ian Rogers <irogers@...gle.com>
Subject: [PATCH v2 10/11] perf python: Add evlist.config to set up record options

Add access to evlist__config that is used to configure an evlist with
record options.

Reviewed-by: Howard Chu <howardchu95@...il.com>
Signed-off-by: Ian Rogers <irogers@...gle.com>
---
 tools/perf/util/python.c | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index c55c8392bc07..69ec2ad60d98 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -9,10 +9,12 @@
 #include <event-parse.h>
 #endif
 #include <perf/mmap.h>
+#include "callchain.h"
 #include "evlist.h"
 #include "evsel.h"
 #include "event.h"
 #include "print_binary.h"
+#include "record.h"
 #include "strbuf.h"
 #include "thread_map.h"
 #include "trace-event.h"
@@ -1052,6 +1054,31 @@ static PyObject *pyrf_evlist__open(struct pyrf_evlist *pevlist,
 	return Py_None;
 }
 
+static PyObject *pyrf_evlist__config(struct pyrf_evlist *pevlist)
+{
+	struct record_opts opts = {
+		.sample_time	     = true,
+		.mmap_pages	     = UINT_MAX,
+		.user_freq	     = UINT_MAX,
+		.user_interval	     = ULLONG_MAX,
+		.freq		     = 4000,
+		.target		     = {
+			.uses_mmap   = true,
+			.default_per_cpu = true,
+		},
+		.nr_threads_synthesize = 1,
+		.ctl_fd              = -1,
+		.ctl_fd_ack          = -1,
+		.no_buffering        = true,
+		.no_inherit          = true,
+	};
+	struct evlist *evlist = &pevlist->evlist;
+
+	evlist__config(evlist, &opts, &callchain_param);
+	Py_INCREF(Py_None);
+	return Py_None;
+}
+
 static PyObject *pyrf_evlist__disable(struct pyrf_evlist *pevlist)
 {
 	evlist__disable(&pevlist->evlist);
@@ -1109,6 +1136,12 @@ static PyMethodDef pyrf_evlist__methods[] = {
 		.ml_flags = METH_VARARGS | METH_KEYWORDS,
 		.ml_doc	  = PyDoc_STR("reads an event.")
 	},
+	{
+		.ml_name  = "config",
+		.ml_meth  = (PyCFunction)pyrf_evlist__config,
+		.ml_flags = METH_NOARGS,
+		.ml_doc	  = PyDoc_STR("Apply default record options to the evlist.")
+	},
 	{
 		.ml_name  = "disable",
 		.ml_meth  = (PyCFunction)pyrf_evlist__disable,
-- 
2.48.1.711.g2feabab25a-goog