ftrace.event {
	task.task_newtask {
		filter = "pid < 128"
		enable
	}
	kprobes.vfs_read {
		probes = "vfs_read $arg1 $arg2"
		filter = "common_pid < 200"
		enable
	}
	synthetic.initcall_latency {
		fields = "unsigned long func", "u64 lat"
		actions = "hist:keys=func.sym,lat:vals=lat:sort=lat"
	}
	initcall.initcall_start {
		actions = "hist:keys=func:ts0=common_timestamp.usecs"
	}
	initcall.initcall_finish {
		actions = "hist:keys=func:lat=common_timestamp.usecs-$ts0:onmatch(initcall.initcall_start).initcall_latency(func,$lat)"
	}
}