tools/perf/tests/cpumap.c

   1 #include "tests.h"
   2 #include <stdio.h>
   3 #include "cpumap.h"
   4 #include "event.h"
   5 #include <string.h>
   6 #include <linux/bitops.h>
   7 #include "debug.h"
   8
   9 struct machine;
  10
  11 static int process_event_mask(struct perf_tool *tool __maybe_unused,
  12                          union perf_event *event,
  13                          struct perf_sample *sample __maybe_unused,
  14                          struct machine *machine __maybe_unused)
  15 {
  16         struct cpu_map_event *map_event = &event->cpu_map;
  17         struct cpu_map_mask *mask;
  18         struct cpu_map_data *data;
  19         struct cpu_map *map;
  20         int i;
  21
  22         data = &map_event->data;
  23
  24         TEST_ASSERT_VAL("wrong type", data->type == PERF_CPU_MAP__MASK);
  25
  26         mask = (struct cpu_map_mask *)data->data;
  27
  28         TEST_ASSERT_VAL("wrong nr",   mask->nr == 1);
  29
  30         for (i = 0; i < 20; i++) {
  31                 TEST_ASSERT_VAL("wrong cpu", test_bit(i, mask->mask));
  32         }
  33
  34         map = cpu_map__new_data(data);
  35         TEST_ASSERT_VAL("wrong nr",  map->nr == 20);
  36
  37         for (i = 0; i < 20; i++) {
  38                 TEST_ASSERT_VAL("wrong cpu", map->map[i] == i);
  39         }
  40
  41         cpu_map__put(map);
  42         return 0;
  43 }
  44
  45 static int process_event_cpus(struct perf_tool *tool __maybe_unused,
  46                          union perf_event *event,
  47                          struct perf_sample *sample __maybe_unused,
  48                          struct machine *machine __maybe_unused)
  49 {
  50         struct cpu_map_event *map_event = &event->cpu_map;
  51         struct cpu_map_entries *cpus;
  52         struct cpu_map_data *data;
  53         struct cpu_map *map;
  54
  55         data = &map_event->data;
  56
  57         TEST_ASSERT_VAL("wrong type", data->type == PERF_CPU_MAP__CPUS);
  58
  59         cpus = (struct cpu_map_entries *)data->data;
  60
  61         TEST_ASSERT_VAL("wrong nr",   cpus->nr == 2);
  62         TEST_ASSERT_VAL("wrong cpu",  cpus->cpu[0] == 1);
  63         TEST_ASSERT_VAL("wrong cpu",  cpus->cpu[1] == 256);
  64
  65         map = cpu_map__new_data(data);
  66         TEST_ASSERT_VAL("wrong nr",  map->nr == 2);
  67         TEST_ASSERT_VAL("wrong cpu", map->map[0] == 1);
  68         TEST_ASSERT_VAL("wrong cpu", map->map[1] == 256);
  69         TEST_ASSERT_VAL("wrong refcnt", atomic_read(&map->refcnt) == 1);
  70         cpu_map__put(map);
  71         return 0;
  72 }
  73
  74
  75 int test__cpu_map_synthesize(int subtest __maybe_unused)
  76 {
  77         struct cpu_map *cpus;
  78
  79         /* This one is better stores in mask. */
  80         cpus = cpu_map__new("0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19");
  81
  82         TEST_ASSERT_VAL("failed to synthesize map",
  83                 !perf_event__synthesize_cpu_map(NULL, cpus, process_event_mask, NULL));
  84
  85         cpu_map__put(cpus);
  86
  87         /* This one is better stores in cpu values. */
  88         cpus = cpu_map__new("1,256");
  89
  90         TEST_ASSERT_VAL("failed to synthesize map",
  91                 !perf_event__synthesize_cpu_map(NULL, cpus, process_event_cpus, NULL));
  92
  93         cpu_map__put(cpus);
  94         return 0;
  95 }
  96
  97 static int cpu_map_print(const char *str)
  98 {
  99         struct cpu_map *map = cpu_map__new(str);
 100         char buf[100];
 101
 102         if (!map)
 103                 return -1;
 104
 105         cpu_map__snprint(map, buf, sizeof(buf));
 106         return !strcmp(buf, str);
 107 }
 108
 109 int test__cpu_map_print(int subtest __maybe_unused)
 110 {
 111         TEST_ASSERT_VAL("failed to convert map", cpu_map_print("1"));
 112         TEST_ASSERT_VAL("failed to convert map", cpu_map_print("1,5"));
 113         TEST_ASSERT_VAL("failed to convert map", cpu_map_print("1,3,5,7,9,11,13,15,17,19,21-40"));
 114         TEST_ASSERT_VAL("failed to convert map", cpu_map_print("2-5"));
 115         TEST_ASSERT_VAL("failed to convert map", cpu_map_print("1,3-6,8-10,24,35-37"));
 116         TEST_ASSERT_VAL("failed to convert map", cpu_map_print("1,3-6,8-10,24,35-37"));
 117         TEST_ASSERT_VAL("failed to convert map", cpu_map_print("1-10,12-20,22-30,32-40"));
 118         return 0;
 119 }