tag	line	file	source code
cpu_system	200	fs/proc/array.c	kstat.cpu_system,
cpu_system	201	fs/proc/array.c	jiffies - (kstat.cpu_user + kstat.cpu_nice + kstat.cpu_system),
cpu_system	13	include/linux/kernel_stat.h	unsigned int cpu_user, cpu_nice, cpu_system;
cpu_system	661	kernel/sched.c	kstat.cpu_system++;