def sys_snapshot_diff(snap_a, snap_b):
diff = cpu_stat(*[(x - y) for x, y in zip(list(snap_a.cpu), list(snap_b.cpu))])
return sys_snapshot(diff, snap_a.mem, snap_a.disk)
def read_cpu_stat():
with open('/proc/stat') as stat:
return cpu_stat(*[int(value) for value in stat.readline().split()[1:]])
