前几天在一个用户那巡检发现,当我使用ping 202.103.24.68 repeat 10000时,6509的CPU利用率很快就高达90%,用户的设备引擎为WS-SUP720-3B,IOS为s72033-entservicesk9_wan-vz.122-18.SXF14.bin,对比平时的CPU使用与ping时的CPU使用情况,发现是sbin/ios-base这个进程的利用增长很高。下面是对应的截图:
不正常的情况:
#sh proc cpu detailed
CPU utilization for five seconds: 97%; one minute: 44%; five minutes: 30%
PID/TID 5Sec 1Min 5Min Process Prio STATE CPU
16408 66.1% 29.6% 20.8% ios-base 82d07h
Process sbin/ios-base, type IOS, PID = 16408
CPU utilization for five seconds: 37%/28%; one minute: 17%; five minutes: 11%
Task Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Task Name
1 24425695 114814817 212 0.00% 0.04% 0.05% 5 Hot Service Task
Task Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Task Name
2 1894654292917122652 64 8.23% 3.43% 1.88% 0 Service Task
3 734061991272672143 57 5.67% 2.13% 1.20% 0 Service Task
4 12528568 155392232 80 0.39% 0.13% 0.16% 0 Service Task
正常情况:
#sh proc cpu detail
CPU utilization for five seconds: 6%; one minute: 11%; five minutes: 17%
PID/TID 5Sec 1Min 5Min Process Prio STATE CPU
16408 5.2% 8.6% 11.8% ios-base 82d07h
Process sbin/ios-base, type IOS, PID = 16408
CPU utilization for five seconds: 2%/1%; one minute: 4%; five minutes: 7%
Task Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Task Name
1 24425863 114815700 212 0.00% 0.01% 0.04% 0 Hot Service Task
Task Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Task Name
2 1894673932917154603 64 0.07% 0.27% 0.80% 0 Service Task
3 734072711272688360 57 0.00% 0.09% 0.46% 0 Service Task
4 12528684 155393465 80 0.00% 0.01% 0.04% 0 Service Task
5 4 41 97 0.00% 0.00% 0.00% 0 Chunk Manager
6 0 1 0 0.00% 0.00% 0.00% 0 Connection Mgr
我想向大家请教一下,这个我们IOS的bug吗,需要升级吗。
另外我在一台3560的交换机也做了这样的ping测试,CPU也增高了,但是最多也只到50%。
谢谢了!