c_cpp/readscorr/timer.h

   1 // by Hu Xuesong
   2 #ifndef _G_TIMER_H
   3 #define _G_TIMER_H
   4
   5 #include <sys/time.h>   //getrusage, gettimeofday
   6 #include <sys/resource.h>
   7
   8 struct timeval __g_timeofday_start, __g_timeofday_end, __g_timeofday_diff,\
   9        __g_resource_usage_tmp,__g_resource_usage_other_time;
  10 struct rusage __g_resource_usage;
  11
  12 #define G_TIMER_START \
  13     gettimeofday(&__g_timeofday_start,NULL)
  14
  15 #define G_TIMER_END \
  16     do {\
  17         getrusage(RUSAGE_SELF, &__g_resource_usage);\
  18         gettimeofday(&__g_timeofday_end,NULL);\
  19         timersub(&__g_timeofday_end,&__g_timeofday_start,&__g_timeofday_diff);\
  20         timersub(&__g_timeofday_diff,&__g_resource_usage.ru_utime,&__g_resource_usage_tmp);\
  21         timersub(&__g_resource_usage_tmp,&__g_resource_usage.ru_stime,&__g_resource_usage_other_time);\
  22     } while (0)
  23
  24 #define G_TIMER_PRINT \
  25     fprintf(stderr,"\n--------------------------------------------------------------------------------\n"\
  26         "Resource Usage Measures:\n"\
  27         "   User: %ld.%06ld(s), System: %ld.%06ld(s). Real: %ld.%06ld(s).\n"\
  28         "   Sleep: %ld.%06ld(s). Block I/O times: %ld/%ld. MaxRSS: %ld kiB.\n"\
  29         "   Wait(s): %ld(nvcsw) + %ld(nivcsw). "\
  30         "Page Fault(s): %ld(minflt) + %ld(majflt).\n",\
  31         __g_resource_usage.ru_utime.tv_sec, __g_resource_usage.ru_utime.tv_usec,\
  32         __g_resource_usage.ru_stime.tv_sec, __g_resource_usage.ru_stime.tv_usec,\
  33         __g_timeofday_diff.tv_sec, __g_timeofday_diff.tv_usec,\
  34         __g_resource_usage_other_time.tv_sec, __g_resource_usage_other_time.tv_usec,\
  35         __g_resource_usage.ru_inblock, __g_resource_usage.ru_oublock,\
  36         __g_resource_usage.ru_maxrss,\
  37         __g_resource_usage.ru_nvcsw, __g_resource_usage.ru_nivcsw,\
  38         __g_resource_usage.ru_minflt, __g_resource_usage.ru_majflt)
  39
  40 #endif /* timer.h */