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Subject[PATCH 09/19] perf tests: Add mem2node object test
Date
Adding mem2node object automated test.

The test prepares few artificial node - memory maps and
verifies the mem2node object returns proper node values
to given addresses.

Link: http://lkml.kernel.org/n/tip-17xdxr5k1zfca9o3fymowqa5@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
tools/perf/tests/Build | 1 +
tools/perf/tests/builtin-test.c | 4 +++
tools/perf/tests/mem2node.c | 73 +++++++++++++++++++++++++++++++++++++++++
tools/perf/tests/tests.h | 1 +
4 files changed, 79 insertions(+)
create mode 100644 tools/perf/tests/mem2node.c

diff --git a/tools/perf/tests/Build b/tools/perf/tests/Build
index 87bf3edb037c..45782220ac23 100644
--- a/tools/perf/tests/Build
+++ b/tools/perf/tests/Build
@@ -47,6 +47,7 @@ perf-y += bitmap.o
perf-y += perf-hooks.o
perf-y += clang.o
perf-y += unit_number__scnprintf.o
+perf-y += mem2node.o

$(OUTPUT)tests/llvm-src-base.c: tests/bpf-script-example.c tests/Build
$(call rule_mkdir)
diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index fafa014240cd..09071ef4434f 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -271,6 +271,10 @@ static struct test generic_tests[] = {
.func = test__unit_number__scnprint,
},
{
+ .desc = "mem2node",
+ .func = test__mem2node,
+ },
+ {
.func = NULL,
},
};
diff --git a/tools/perf/tests/mem2node.c b/tools/perf/tests/mem2node.c
new file mode 100644
index 000000000000..c883607dcd22
--- /dev/null
+++ b/tools/perf/tests/mem2node.c
@@ -0,0 +1,73 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/compiler.h>
+#include <linux/bitmap.h>
+#include "cpumap.h"
+#include "mem2node.h"
+#include "tests.h"
+
+static struct node {
+ int node;
+ const char *map;
+} test_nodes[] = {
+ { .node = 0, .map = "0" },
+ { .node = 1, .map = "1-2" },
+ { .node = 3, .map = "5-7,9" },
+};
+
+#define T TEST_ASSERT_VAL
+
+static unsigned long *get_bitmap(const char *str, int nbits)
+{
+ struct cpu_map *map = cpu_map__new(str);
+ unsigned long *bm = NULL;
+ int i;
+
+ bm = bitmap_alloc(nbits);
+
+ if (map && bm) {
+ bitmap_zero(bm, nbits);
+
+ for (i = 0; i < map->nr; i++) {
+ set_bit(map->map[i], bm);
+ }
+ }
+
+ if (map)
+ cpu_map__put(map);
+ else
+ free(bm);
+
+ return bm && map ? bm : NULL;
+}
+
+int test__mem2node(struct test *t __maybe_unused, int subtest __maybe_unused)
+{
+ struct mem2node map;
+ struct memory_node nodes[3];
+ struct perf_env env = {
+ .memory_nodes = (struct memory_node *) &nodes[0],
+ .nr_memory_nodes = ARRAY_SIZE(nodes),
+ .memory_bsize = 0x100,
+ };
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(nodes); i++) {
+ nodes[i].node = test_nodes[i].node;
+ nodes[i].size = 10;
+
+ T("failed: alloc bitmap",
+ (nodes[i].set = get_bitmap(test_nodes[i].map, 10)));
+ }
+
+ T("failed: mem2node__init", !mem2node__init(&map, &env));
+ T("failed: mem2node__node", 0 == mem2node__node(&map, 0x50));
+ T("failed: mem2node__node", 1 == mem2node__node(&map, 0x100));
+ T("failed: mem2node__node", 1 == mem2node__node(&map, 0x250));
+ T("failed: mem2node__node", 3 == mem2node__node(&map, 0x500));
+ T("failed: mem2node__node", 3 == mem2node__node(&map, 0x650));
+ T("failed: mem2node__node", -1 == mem2node__node(&map, 0x450));
+ T("failed: mem2node__node", -1 == mem2node__node(&map, 0x1050));
+
+ mem2node__exit(&map);
+ return 0;
+}
diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h
index 2862b80bc288..2e169819e647 100644
--- a/tools/perf/tests/tests.h
+++ b/tools/perf/tests/tests.h
@@ -102,6 +102,7 @@ int test__clang(struct test *test, int subtest);
const char *test__clang_subtest_get_desc(int subtest);
int test__clang_subtest_get_nr(void);
int test__unit_number__scnprint(struct test *test, int subtest);
+int test__mem2node(struct test *t, int subtest);

bool test__bp_signal_is_supported(void);

--
2.13.6
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