telnet 后查看cpuinfo信息如下：
cat cpuinfo
system type : Broadcom BCMD144 chip rev 1
processor : 0
cpu model : MIPS 74K V4.9
BogoMIPS : 149.50
wait instruction : no
microsecond timers : yes
tlb_entries : 32
extra interrupt vector : no
hardware watchpoint : yes
ASEs implemented : mips16 dsp
VCED exceptions : not available
VCEI exceptions : not available
unaligned_instructions : 6
dcache hits : 2147483648
dcache misses : 3964761563
icache hits : 2147483648
icache misses : 2071461753
instructions : 2147483648
