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Subject[PATCH 01/13 v4] perf tools: Improve topology test
Date
Improve the topology test to check all aggregation
types. This is to lock down the behaviour before
'id' is changed into a struct in later commits.

Signed-off-by: James Clark <james.clark@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: John Garry <john.garry@huawei.com>
---
tools/perf/tests/topology.c | 53 ++++++++++++++++++++++++++++++++-----
1 file changed, 46 insertions(+), 7 deletions(-)

diff --git a/tools/perf/tests/topology.c b/tools/perf/tests/topology.c
index 22daf2bdf5fa..7bd8848d36b6 100644
--- a/tools/perf/tests/topology.c
+++ b/tools/perf/tests/topology.c
@@ -64,10 +64,11 @@ static int check_cpu_topology(char *path, struct perf_cpu_map *map)
.path = path,
.mode = PERF_DATA_MODE_READ,
};
- int i;
+ int i, id;

session = perf_session__new(&data, false, NULL);
TEST_ASSERT_VAL("can't get session", !IS_ERR(session));
+ cpu__setup_cpunode_map();

/* On platforms with large numbers of CPUs process_cpu_topology()
* might issue an error while reading the perf.data file section
@@ -85,11 +86,18 @@ static int check_cpu_topology(char *path, struct perf_cpu_map *map)
* "socket_id number is too big. You may need to upgrade the
* perf tool."
*
- * This is the reason why this test might be skipped.
+ * This is the reason why this test might be skipped. aarch64 and
+ * s390 always write this part of the header, even when the above
+ * condition is true (see do_core_id_test in header.c). So always
+ * run this test on those platforms.
*/
- if (!session->header.env.cpu)
+ if (!session->header.env.cpu
+ && strncmp(session->header.env.arch, "s390", 4)
+ && strncmp(session->header.env.arch, "aarch64", 7))
return TEST_SKIP;

+ TEST_ASSERT_VAL("Session header CPU map not set", session->header.env.cpu);
+
for (i = 0; i < session->header.env.nr_cpus_avail; i++) {
if (!cpu_map__has(map, i))
continue;
@@ -98,14 +106,45 @@ static int check_cpu_topology(char *path, struct perf_cpu_map *map)
session->header.env.cpu[i].socket_id);
}

+ // Test that core ID contains socket, die and core
+ for (i = 0; i < map->nr; i++) {
+ id = cpu_map__get_core(map, i, NULL);
+ TEST_ASSERT_VAL("Core map - Core ID doesn't match",
+ session->header.env.cpu[map->map[i]].core_id == cpu_map__id_to_cpu(id));
+
+ TEST_ASSERT_VAL("Core map - Socket ID doesn't match",
+ session->header.env.cpu[map->map[i]].socket_id ==
+ cpu_map__id_to_socket(id));
+
+ TEST_ASSERT_VAL("Core map - Die ID doesn't match",
+ session->header.env.cpu[map->map[i]].die_id == cpu_map__id_to_die(id));
+ }
+
+ // Test that die ID contains socket and die
for (i = 0; i < map->nr; i++) {
- TEST_ASSERT_VAL("Core ID doesn't match",
- (session->header.env.cpu[map->map[i]].core_id == (cpu_map__get_core(map, i, NULL) & 0xffff)));
+ id = cpu_map__get_die(map, i, NULL);
+ TEST_ASSERT_VAL("Die map - Socket ID doesn't match",
+ session->header.env.cpu[map->map[i]].socket_id ==
+ cpu_map__id_to_socket(id));

- TEST_ASSERT_VAL("Socket ID doesn't match",
- (session->header.env.cpu[map->map[i]].socket_id == cpu_map__get_socket(map, i, NULL)));
+ TEST_ASSERT_VAL("Die map - Die ID doesn't match",
+ session->header.env.cpu[map->map[i]].die_id == cpu_map__id_to_die(id));
}

+ // Test that socket ID contains only socket
+ for (i = 0; i < map->nr; i++) {
+ id = cpu_map__get_socket(map, i, NULL);
+ TEST_ASSERT_VAL("Socket map - Socket ID doesn't match",
+ session->header.env.cpu[map->map[i]].socket_id ==
+ cpu_map__id_to_socket(id));
+ }
+
+ // Test that node ID contains only node
+ for (i = 0; i < map->nr; i++) {
+ id = cpu_map__get_node(map, i, NULL);
+ TEST_ASSERT_VAL("Node map - Node ID doesn't match",
+ cpu__get_node(map->map[i]) == id);
+ }
perf_session__delete(session);

return 0;
--
2.28.0
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