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Commit 8185850a authored by Jiri Olsa's avatar Jiri Olsa Committed by Arnaldo Carvalho de Melo
Browse files

perf tests: Add mem2node object test 



Adding mem2node object automated test.

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

Signed-off-by: default avatarJiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180309101442.9224-4-jolsa@kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 4acf6142

tools/perf/tests/Build

+1 −0
Original line number Diff line number Diff line
@@ -48,6 +48,7 @@ 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)

tools/perf/tests/builtin-test.c

+4 −0
Original line number Diff line number Diff line
@@ -274,6 +274,10 @@ static struct test generic_tests[] = { 
		.desc = "unit_number__scnprintf",

		.func = test__unit_number__scnprint,

	},

	{

		.desc = "mem2node",

		.func = test__mem2node,

	},

	{

		.func = NULL,

	},

tools/perf/tests/mem2node.c

0 → 100644
+75 −0
Original line number Diff line number Diff line 
#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));



	for (i = 0; i < ARRAY_SIZE(nodes); i++)

		free(nodes[i].set);



	mem2node__exit(&map);

	return 0;

}

tools/perf/tests/tests.h

+1 −0
Original line number Diff line number Diff line
@@ -103,6 +103,7 @@ 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);