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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
--
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