timings.h

   1 #ifndef TIMINGS_H_
   2 #define TIMINGS_H_
   3 //Timing Macro's
   4 #include <sys/time.h>
   5 #include <time.h>
   6 #include <sys/types.h>
   7 #include <sys/stat.h>
   8 #include <unistd.h>
   9
  10 static double tParsing = 0;
  11 static unsigned int cParsing = 0;
  12
  13 static double tLoading = 0;
  14 static unsigned int cLoading = 0;
  15 static double tBuilding = 0;
  16 static unsigned int cBuilding = 0;
  17
  18 static struct timeval tmpv1;
  19 static struct timeval tmpv2;
  20 static std::string mem1;
  21 static std::string mem2;
  22
  23 static void read_procmem(std::string& memstr) {
  24   std::string buf;
  25   pid_t pid = getpid();
  26   std::stringstream path;
  27   path <<  "/proc/" << pid << "/status";
  28   std::ifstream infile;
  29   infile.open (path.str().c_str(), std::ifstream::in);
  30   while (infile.good()){
  31     getline(infile,buf);
  32     if (infile.eof()) {
  33       memstr = "Could not read memory";
  34       return;
  35     };
  36     int idx = buf.find("VmRSS");
  37     if (idx == 0){
  38       memstr = buf;
  39       return;
  40     };
  41   };
  42   memstr = "Could not read memory";
  43   return;
  44
  45 }
  46
  47 #define STARTTIMER()   do {                                             \
  48   read_procmem(mem1);                                                   \
  49   gettimeofday(&tmpv1,NULL);                                            \
  50   } while (0)                                                           \
  51
  52 #define STOPTIMER(x)   do {                                             \
  53   gettimeofday(&tmpv2,NULL);                                            \
  54   read_procmem(mem2);                                                   \
  55   (t##x) = ((tmpv2.tv_sec  - tmpv1.tv_sec) * 1000000.0 +                \
  56             (tmpv2.tv_usec  - tmpv1.tv_usec))/1000.0;                   \
  57   (c##x)= (c##x)+1;                                                     \
  58   } while (0)
  59
  60 #define PRINTTIME(s,x) do {                                             \
  61     std::cerr << (s) << " : " << (t##x) << "ms" << std::endl;           \
  62     std::cerr << "Mem use before: " << mem1 << std::endl;               \
  63     std::cerr << "Mem use after: " << mem2 << std::endl;                \
  64   } while (0)                                                           \
  65
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  72
  73 #endif