tms

struct tms {
   clock_t   tms_utime ;  //  total processor time the calling process has used in executing the instructions of its program
   clock_t   tms_stime ;  //  processor time the system has used on behalf of the calling process
   clock_t   tms_cutime;
   clock_t   tms_cstime;
};

clock_t times (struct tms *buffer);