LXR linux/tools/perf/tests/mem.c

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