| Linux / Unix Command: times |
NAME
times - get process timesSYNOPSIS
#include <sys/times.h>clock_t times(struct tms *buf);
DESCRIPTION
The times() function stores the current process times in the struct tms that buf points to. The struct tms is as defined in <sys/times.h>:
struct tms {
- clock_t tms_utime; /* user time */ clock_t tms_stime; /* system time */ clock_t tms_cutime; /* user time of children */ clock_t tms_cstime; /* system time of children */
The tms_utime field contains the CPU time spent executing instructions of the calling process. The tms_stime field contains the CPU time spent in the system while executing tasks on behalf of the calling process. The tms_cutime field contains the sum of the tms_utime and tms_cutime values for all waited-for terminated children. The tms_cstime field contains the sum of the tms_stime and tms_cstime values for all waited-for terminated children.
Times for terminated children (and their descendants) is added in at the moment wait(2) or waitpid(2) returns their process ID. In particular, times of grandchildren that the children did not wait for are never seen.
All times reported are in clock ticks.
RETURN VALUE
The function times returns the number of clock ticks that have elapsed since an arbitrary point in the past. For Linux this point is the moment the system was booted. This return value may overflow the possible range of type clock_t. On error, (clock_t) -1 is returned, and errno is set appropriately.SEE ALSO
time(1), getrusage(2), wait(2), clock(3), sysconf(3)
Important: Use the man command (% man) to see how a command is used on your particular computer.
