first of all..
thanks for your kindly reply..

I want to know about getting cpu percentage not use structure
because in SCO-UNIX, there is no cpu percentage ..but only
cpu time ( timestruc_t pr_utime; )
so.. I asked get that percantage without structure..

I can get get cpu percentage in HP-UX using pstat.h..
but.. How can I get cpu percentage in SCO-UNIX ??

/** SCO-UNIX , procfs.h **/
typedef struct pstatus {
....
pid_t pr_pid; /* Process id */
pid_t pr_ppid; /* Parent process id */
pid_t pr_pgid; /* Process group id */
pid_t pr_sid; /* Session id */
timestruc_t pr_utime; /* Process user cpu time */
timestruc_t pr_stime; /* Process system cpu time */
timestruc_t pr_cutime; /* Sum of children's user times */
timestruc_t pr_cstime; /* Sum of children's system times */
sigset_t pr_sigtrace; /* Mask of traced signals */
fltset_t pr_flttrace; /* Mask of traced faults */
sysset_t pr_sysentry; /* Mask of system calls traced on
} pstatus_t;