1// SPDX-License-Identifier: GPL-2.0
2#include "util/map_symbol.h"
3#include "util/mem-events.h"
4#include "util/mem-info.h"
5#include "util/symbol.h"
6#include "linux/perf_event.h"
7#include "util/debug.h"
8#include "tests.h"
9#include <string.h>
10
11static int check(union perf_mem_data_src data_src,
12 const char *string)
13{
14 char out[100];
15 char failure[100];
16 struct mem_info *mi = mem_info__new();
17 int n;
18
19 TEST_ASSERT_VAL("Memory allocation failed", mi);
20 *mem_info__data_src(mi) = data_src;
21 n = perf_mem__snp_scnprintf(out, sizeof out, mi);
22 n += perf_mem__lvl_scnprintf(out + n, sizeof out - n, mi);
23 mem_info__put(mi);
24 scnprintf(buf: failure, size: sizeof failure, fmt: "unexpected %s", out);
25 TEST_ASSERT_VAL(failure, !strcmp(string, out));
26 return 0;
27}
28
29static int test__mem(struct test_suite *text __maybe_unused, int subtest __maybe_unused)
30{
31 int ret = 0;
32 union perf_mem_data_src src;
33
34 memset(&src, 0, sizeof(src));
35
36 src.mem_lvl = PERF_MEM_LVL_HIT;
37 src.mem_lvl_num = 4;
38
39 ret |= check(data_src: src, string: "N/AL4 hit");
40
41 src.mem_remote = 1;
42
43 ret |= check(data_src: src, string: "N/ARemote L4 hit");
44
45 src.mem_lvl = PERF_MEM_LVL_MISS;
46 src.mem_lvl_num = PERF_MEM_LVLNUM_PMEM;
47 src.mem_remote = 0;
48
49 ret |= check(data_src: src, string: "N/APMEM miss");
50
51 src.mem_remote = 1;
52
53 ret |= check(data_src: src, string: "N/ARemote PMEM miss");
54
55 src.mem_snoopx = PERF_MEM_SNOOPX_FWD;
56 src.mem_lvl_num = PERF_MEM_LVLNUM_RAM;
57
58 ret |= check(data_src: src , string: "FwdRemote RAM miss");
59
60 return ret;
61}
62
63DEFINE_SUITE("Test data source output", mem);
64

source code of linux/tools/perf/tests/mem.c