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
   8 static 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
  24 int 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 }