kmemtrace-show.c

   1 /*
   2  * Copyright (C) 2008 Eduard - Gabriel Munteanu
   3  *
   4  * This file is released under GPL version 2.
   5  */
   6
   7 #include <stdio.h>
   8 #include <sys/stat.h>
   9 #include <unistd.h>
  10
  11 #include <common.h>
  12 #include <kmemtrace.h>
  13 #include <dataset.h>
  14
  15 unsigned long ev_num = 1, target_ev;
  16
  17 static int show(struct kmemtrace_event *ev, void *extra)
  18 {
  19         struct kmemtrace_allocstats *stats = extra;
  20
  21         if (ev_num != target_ev) {
  22                 ev_num++;
  23                 return 0;
  24         }
  25
  26         printf("Event %lu:\n", ev_num);
  27         printf("\tevent_id\t%d\n\tkind_id\t\t%d\n\tevent_size\t0x%x\n"
  28                "\tcall_site\t%p\n\tptr\t\t%p\n\tseq_num\t%ld\n",
  29                ev->event_id, ev->type_id, (unsigned int) ev->event_size,
  30                (void *) ev->call_site, (void *) ev->ptr, (long) ev->seq_num);
  31
  32         if (ev->event_id == KMEMTRACE_EVENT_ALLOC) {
  33                 if (ev->event_size != sizeof(struct kmemtrace_event) +
  34                                       sizeof(struct kmemtrace_allocstats)) {
  35                         printf("Size of alloc event is wrong!\n");
  36                         return 1;
  37                 }
  38                 printf("\n\tbytes_req\t%lu\n\tbytes_alloc\t%lu\n"
  39                        "\tgfp_flags\t%d\n\tnuma_node\t%d\n",
  40                        (unsigned long) stats->bytes_req,
  41                        (unsigned long) stats->bytes_alloc,
  42                        (int) stats->gfp_flags, (int) stats->numa_node);
  43         }
  44
  45         return 1;
  46 }
  47
  48 int main(int argc, char **argv)
  49 {
  50         struct dataset *set;
  51         unsigned long cpu;
  52
  53         if (argc != 3)
  54                 panic("There must be two arguments!\n");
  55
  56         cpu = strtoul(argv[1], NULL, 10);
  57         set = dataset_open("cpu%lu.out", cpu);
  58         if (!set)
  59                 panic("Could not open input file!\n");
  60
  61         target_ev = strtoul(argv[2], NULL, 10);
  62
  63         if (!dataset_iter(set, show))
  64                 printf("Not found!\n");
  65
  66         return 0;
  67 }
  68