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top - 01:06:48 up 1:22, 1 user, load average: 0.06, 0.60, 0.48
Tasks: 29 total,   1 running, 28 sleeping,   0 stopped,   0 zombie
Cpu(s): 0.3% us, 1.0% sy, 0.0% ni, 98.7% id, 0.0% wa, 0.0% hi, 0.0% si
Mem:    191272k total,   173656k used,    17616k free,    22052k buffers
Swap:   192772k total,        0k used,   192772k free,   123988k cached

   PID USER      PR NI VIRT RES SHR S %CPU %MEM    TIME+ COMMAND
1379 root      16   0 7976 2456 1980 S 0.7 1.3   0:11.03 sshd
14704 root      16   0 2128 980 796 R 0.7 0.5   0:02.72 top
     1 root      16   0 1992 632 544 S 0.0 0.3   0:00.90 init
     2 root      34 19     0    0    0 S 0.0 0.0   0:00.00 ksoftirqd/0
     3 root      RT   0     0    0    0 S 0.0 0.0   0:00.00 watchdog/0

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01:06:48	��ǰʱ��
up 1:22	ϵͳ��ʱ�䣬��ʽΪʱ:��
1 user	��ǰ��¼�û��
load average: 0.06, 0.60, 0.48	ϵͳ��أ��е�ƽ��ȡ� ��ֵ�ֱ�Ϊ 1��ӡ�5��ӡ�15��ǰ��ڵ�ƽ��ֵ��

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Tasks: 29 total	��
1 running	��еĽ��
28 sleeping	˯�ߵĽ��
0 stopped	ֹͣ�Ľ��
0 zombie	��ʬ��
Cpu(s): 0.3% us	�û��ռ�ռ��CPU�ٷֱ�
1.0% sy	�ں˿ռ�ռ��CPU�ٷֱ�
0.0% ni	�û��̿ռ��ڸı��ȼ��Ľ��ռ��CPU�ٷֱ�
98.7% id	��CPU�ٷֱ�
0.0% wa	�ȴ��CPUʱ��ٷֱ�
0.0% hi
0.0% si

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Mem: 191272k total	��ڴ��
173656k used	ʹ�õ��ڴ��
17616k free	��ڴ��
22052k buffers	��ں˻��ڴ��
Swap: 192772k total	��
0k used	ʹ�õĽ��
192772k free	��н��
123988k cached	��Ľ�� �ڴ��е��ݱ��ֱ��뵽�ڴ棬��ʹ�ù��Ľ��δ��ǣ� ��ֵ��Ϊ��Щ��Ѵ��ڴ���Ľ��Ĵ�С�� ��Ӧ��ڴ��ٴα��ʱ�ɲ��ٶԽ��д�롣

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a	PID	��id
b	PPID	��id
c	RUSER	Real user name
d	UID	��ߵ��û�id
e	USER	��ߵ��û��
f	GROUP	��ߵ��
g	TTY	��̵��ն��Ǵ��ն��Ľ��ʾΪ ?
h	PR	��ȼ�
i	NI	niceֵ��ֵ��ʾ��ȼ��ֵ��ʾ��ȼ�
j	P	��ʹ�õ�CPU��ڶ�CPU��
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l	TIME	��ʹ�õ�CPUʱ��ܼƣ��λ��
m	TIME+	��ʹ�õ�CPUʱ��ܼƣ��λ1/100��
n	%MEM	��ʹ�õ���ڴ��ٷֱ�
o	VIRT	��ʹ�õ��ڴ��λkb��VIRT=SWAP+RES
p	SWAP	��ʹ�õ��ڴ��У��Ĵ�С��λkb��
q	RES	��ʹ�õġ�δ��ڴ��С��λkb��RES=CODE+DATA
r	CODE	��ִ�д��ռ�õ����ڴ��С��λkb
s	DATA	��ִ�д��Ĳ��(��ݶ�+ջ)ռ�õ����ڴ��С��λkb
t	SHR	��ڴ��С��λkb
u	nFLT	ҳ��
v	nDRT	��һ��д�뵽��ڣ��޸Ĺ��ҳ��
w	S	��״̬�� D=��жϵ�˯��״̬ R=�� S=˯�� T=��/ֹͣ Z=��ʬ��
x	COMMAND	��/��
y	WCHAN	��ý��˯�ߣ��ʾ˯��е�ϵͳ��
z	Flags	��־��ο� sched.h

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