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Message-Id: <1443763159-29098-25-git-send-email-namhyung@kernel.org> Date: Fri, 2 Oct 2015 14:19:05 +0900 From: Namhyung Kim <namhyung@...nel.org> To: Arnaldo Carvalho de Melo <acme@...nel.org> Cc: Ingo Molnar <mingo@...nel.org>, Peter Zijlstra <a.p.zijlstra@...llo.nl>, Jiri Olsa <jolsa@...hat.com>, LKML <linux-kernel@...r.kernel.org>, Frederic Weisbecker <fweisbec@...il.com>, Stephane Eranian <eranian@...gle.com>, David Ahern <dsahern@...il.com>, Andi Kleen <andi@...stfloor.org> Subject: [RFC/PATCH 24/38] perf tools: Add testcase for managing maps with time This tests new map_groups__{insert,find}_by_time() API working correctly by using 3 * 100 maps. Cc: Stephane Eranian <eranian@...gle.com> Signed-off-by: Namhyung Kim <namhyung@...nel.org> --- tools/perf/tests/Build | 1 + tools/perf/tests/builtin-test.c | 4 ++ tools/perf/tests/tests.h | 1 + tools/perf/tests/thread-map-time.c | 90 ++++++++++++++++++++++++++++++++++++++ 4 files changed, 96 insertions(+) create mode 100644 tools/perf/tests/thread-map-time.c diff --git a/tools/perf/tests/Build b/tools/perf/tests/Build index d287b99ff3bb..cc4e3af3e0fd 100644 --- a/tools/perf/tests/Build +++ b/tools/perf/tests/Build @@ -28,6 +28,7 @@ perf-y += thread-comm.o perf-y += thread-mg-share.o perf-y += thread-lookup-time.o perf-y += thread-mg-time.o +perf-y += thread-map-time.o perf-y += switch-tracking.o perf-y += keep-tracking.o perf-y += code-reading.o diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c index 62de08a89e0e..d5f9fcef5571 100644 --- a/tools/perf/tests/builtin-test.c +++ b/tools/perf/tests/builtin-test.c @@ -203,6 +203,10 @@ static struct test { .func = test__thread_mg_time, }, { + .desc = "Test thread map lookup with time", + .func = test__thread_map_lookup_time, + }, + { .func = NULL, }, }; diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h index 03dcaccb570f..e498b23f1580 100644 --- a/tools/perf/tests/tests.h +++ b/tools/perf/tests/tests.h @@ -68,6 +68,7 @@ int test_session_topology(void); int test__thread_comm(void); int test__thread_lookup_time(void); int test__thread_mg_time(void); +int test__thread_map_lookup_time(void); #if defined(__x86_64__) || defined(__i386__) || defined(__arm__) || defined(__aarch64__) #ifdef HAVE_DWARF_UNWIND_SUPPORT diff --git a/tools/perf/tests/thread-map-time.c b/tools/perf/tests/thread-map-time.c new file mode 100644 index 000000000000..6f28975faeb5 --- /dev/null +++ b/tools/perf/tests/thread-map-time.c @@ -0,0 +1,90 @@ +#include "debug.h" +#include "tests.h" +#include "machine.h" +#include "thread.h" +#include "map.h" + +#define PERF_MAP_START 0x40000 +#define LIBC_MAP_START 0x80000 +#define VDSO_MAP_START 0x7F000 + +#define NR_MAPS 100 + +static int lookup_maps(struct map_groups *mg) +{ + struct map *map; + int i, ret = -1; + size_t n; + struct { + const char *path; + u64 start; + } maps[] = { + { "/usr/bin/perf", PERF_MAP_START }, + { "/usr/lib/libc.so", LIBC_MAP_START }, + { "[vdso]", VDSO_MAP_START }, + }; + + /* this is needed to insert/find map by time */ + perf_has_index = true; + + for (n = 0; n < ARRAY_SIZE(maps); n++) { + for (i = 0; i < NR_MAPS; i++) { + map = map__new2(maps[n].start, dso__new(maps[n].path), + MAP__FUNCTION, i * 10000); + if (map == NULL) { + pr_debug("memory allocation failed\n"); + goto out; + } + + map->end = map->start + 0x1000; + map_groups__insert_by_time(mg, map); + } + } + + if (verbose > 1) + map_groups__fprintf(mg, stderr); + + for (n = 0; n < ARRAY_SIZE(maps); n++) { + for (i = 0; i < NR_MAPS; i++) { + u64 timestamp = i * 10000; + + map = map_groups__find_by_time(mg, MAP__FUNCTION, + maps[n].start, + timestamp); + + TEST_ASSERT_VAL("cannot find map", map); + TEST_ASSERT_VAL("addr not matched", + map->start == maps[n].start); + TEST_ASSERT_VAL("pathname not matched", + !strcmp(map->dso->name, maps[n].path)); + TEST_ASSERT_VAL("timestamp not matched", + map->timestamp == timestamp); + } + } + + ret = 0; +out: + return ret; +} + +/* + * This test creates large number of overlapping maps for increasing + * time and find a map based on timestamp. + */ +int test__thread_map_lookup_time(void) +{ + struct machines machines; + struct machine *machine; + struct thread *t; + int ret; + + machines__init(&machines); + machine = &machines.host; + + t = machine__findnew_thread(machine, 0, 0); + + ret = lookup_maps(t->mg); + + machine__delete_threads(machine); + return ret; +} -- 2.6.0 -- 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/
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