kproc_info system and user time is broken for processes with threads, when fetch then by kvm_getprocs() function call. For example, modern 'ps' on server running mysqld (145 precached threads)
# ps -ax -o comm,cputime,systime,usertime | grep mysqld mysqld 16872:35.39 5249:07.68 3353:36.79 # ps -ax -o comm,cputime,systime,usertime | grep httpd httpd 0:00.02 0:00.00 0:00.02 httpd 0:00.00 0:00.00 0:00.00 httpd 0:02.51 0:01.77 0:00.75 Sum systime+usertime=cputime for httpd, but different for mysqld. systime and usertime for mysqld not changed many times, but cputime increased. Modern ps uses ki_rusage.ru_stime and ki_rusage.ru_utime from kproc_info for systime and usertime statistic. What wrong? -- Non nobis Domine non nobis sed Nomini Tuo da gloriam Phil Kulin _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
