From 23331eeb731a503aaa74d167055eeedc2073ff09 Mon Sep 17 00:00:00 2001 From: James Clark Date: Thu, 26 Nov 2020 16:13:17 +0200 Subject: [PATCH] perf tests: Improve topology test to check all aggregation types 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. Committer testing: $ perf test topology 41: Session topology: Ok $ $ perf test -v topology 41: Session topology: --- start --- test child forked, pid 965552 templ file: /tmp/perf-test-mO7NtI Problems creating module maps, continuing anyway... CPU 0, core 0, socket 0 CPU 1, core 1, socket 0 CPU 2, core 2, socket 0 CPU 3, core 4, socket 0 CPU 4, core 5, socket 0 CPU 5, core 6, socket 0 CPU 6, core 8, socket 0 CPU 7, core 9, socket 0 CPU 8, core 10, socket 0 CPU 9, core 12, socket 0 CPU 10, core 13, socket 0 CPU 11, core 14, socket 0 CPU 12, core 0, socket 0 CPU 13, core 1, socket 0 CPU 14, core 2, socket 0 CPU 15, core 4, socket 0 CPU 16, core 5, socket 0 CPU 17, core 6, socket 0 CPU 18, core 8, socket 0 CPU 19, core 9, socket 0 CPU 20, core 10, socket 0 CPU 21, core 12, socket 0 CPU 22, core 13, socket 0 CPU 23, core 14, socket 0 test child finished with 0 ---- end ---- Session topology: Ok $ Signed-off-by: James Clark Acked-by: Namhyung Kim Acked-by: Jiri Olsa Tested-by: Arnaldo Carvalho de Melo Tested-by: John Garry Cc: Alexander Shishkin Cc: Ingo Molnar Cc: Mark Rutland Cc: Peter Zijlstra Cc: Thomas Richter Link: https://lore.kernel.org/r/20201126141328.6509-2-james.clark@arm.com Signed-off-by: Arnaldo Carvalho de Melo --- 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 165feedc7863..f988b3109afc 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 << 16)); + + 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 << 16)); + } - 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 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 == 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; -- 2.20.1