linux-kernel - [tip:perf/core] perf tests: Add tests of new pinned modifier

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:	Mon, 12 Aug 2013 03:24:02 -0700
From:	tip-bot for Michael Ellerman <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	acme@...hat.com, linux-kernel@...r.kernel.org, hpa@...or.com,
	mingo@...nel.org, a.p.zijlstra@...llo.nl, michael@...erman.id.au,
	namhyung@...nel.org, jolsa@...hat.com, tglx@...utronix.de
Subject: [tip:perf/core] perf tests: Add tests of new pinned modifier

Commit-ID:  c9ee780f2736b7a149658b0cd8c8389da23e190a
Gitweb:     http://git.kernel.org/tip/c9ee780f2736b7a149658b0cd8c8389da23e190a
Author:     Michael Ellerman <michael@...erman.id.au>
AuthorDate: Tue, 6 Aug 2013 23:28:06 +1000
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Wed, 7 Aug 2013 17:35:40 -0300

perf tests: Add tests of new pinned modifier

Add a negative test to test__checkevent_pmu_events() to get lots of
coverage of the negative case, ie. when the modifier is not specified.

Add a test of a single event, and of the group case.

Signed-off-by: Michael Ellerman <michael@...erman.id.au>
Acked-by: Jiri Olsa <jolsa@...hat.com>
Acked-by: Namhyung Kim <namhyung@...nel.org>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Link: http://lkml.kernel.org/r/1375795686-4226-2-git-send-email-michael@ellerman.id.au
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/tests/parse-events.c | 53 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)

diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c
index b46379c..48114d1 100644
--- a/tools/perf/tests/parse-events.c
+++ b/tools/perf/tests/parse-events.c
@@ -452,6 +452,7 @@ static int test__checkevent_pmu_events(struct perf_evlist *evlist)
 			evsel->attr.exclude_kernel);
 	TEST_ASSERT_VAL("wrong exclude_hv", evsel->attr.exclude_hv);
 	TEST_ASSERT_VAL("wrong precise_ip", !evsel->attr.precise_ip);
+	TEST_ASSERT_VAL("wrong pinned", !evsel->attr.pinned);
 
 	return 0;
 }
@@ -1070,6 +1071,50 @@ static int test__leader_sample2(struct perf_evlist *evlist __maybe_unused)
 	return 0;
 }
 
+static int test__checkevent_pinned_modifier(struct perf_evlist *evlist)
+{
+	struct perf_evsel *evsel = perf_evlist__first(evlist);
+
+	TEST_ASSERT_VAL("wrong exclude_user", !evsel->attr.exclude_user);
+	TEST_ASSERT_VAL("wrong exclude_kernel", evsel->attr.exclude_kernel);
+	TEST_ASSERT_VAL("wrong exclude_hv", evsel->attr.exclude_hv);
+	TEST_ASSERT_VAL("wrong precise_ip", evsel->attr.precise_ip);
+	TEST_ASSERT_VAL("wrong pinned", evsel->attr.pinned);
+
+	return test__checkevent_symbolic_name(evlist);
+}
+
+static int test__pinned_group(struct perf_evlist *evlist)
+{
+	struct perf_evsel *evsel, *leader;
+
+	TEST_ASSERT_VAL("wrong number of entries", 3 == evlist->nr_entries);
+
+	/* cycles - group leader */
+	evsel = leader = perf_evlist__first(evlist);
+	TEST_ASSERT_VAL("wrong type", PERF_TYPE_HARDWARE == evsel->attr.type);
+	TEST_ASSERT_VAL("wrong config",
+			PERF_COUNT_HW_CPU_CYCLES == evsel->attr.config);
+	TEST_ASSERT_VAL("wrong group name", !evsel->group_name);
+	TEST_ASSERT_VAL("wrong leader", evsel->leader == leader);
+	TEST_ASSERT_VAL("wrong pinned", evsel->attr.pinned);
+
+	/* cache-misses - can not be pinned, but will go on with the leader */
+	evsel = perf_evsel__next(evsel);
+	TEST_ASSERT_VAL("wrong type", PERF_TYPE_HARDWARE == evsel->attr.type);
+	TEST_ASSERT_VAL("wrong config",
+			PERF_COUNT_HW_CACHE_MISSES == evsel->attr.config);
+	TEST_ASSERT_VAL("wrong pinned", !evsel->attr.pinned);
+
+	/* branch-misses - ditto */
+	evsel = perf_evsel__next(evsel);
+	TEST_ASSERT_VAL("wrong config",
+			PERF_COUNT_HW_BRANCH_MISSES == evsel->attr.config);
+	TEST_ASSERT_VAL("wrong pinned", !evsel->attr.pinned);
+
+	return 0;
+}
+
 static int count_tracepoints(void)
 {
 	char events_path[PATH_MAX];
@@ -1294,6 +1339,14 @@ static struct evlist_test test__events[] = {
 		.name  = "{instructions,branch-misses}:Su",
 		.check = test__leader_sample2,
 	},
+	[40] = {
+		.name  = "instructions:uDp",
+		.check = test__checkevent_pinned_modifier,
+	},
+	[41] = {
+		.name  = "{cycles,cache-misses,branch-misses}:D",
+		.check = test__pinned_group,
+	},
 };
 
 static struct evlist_test test__events_pmu[] = {
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/