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6851
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思科3850 的CPU很高

tianwen
Level 1
Level 1
C3850#sho processes cpu sorted | exclude 0.0
Core 0: CPU utilization for five seconds: 18%; one minute: 17%; five minutes: 17%
Core 1: CPU utilization for five seconds: 98%; one minute: 97%; five minutes: 97%
Core 2: CPU utilization for five seconds: 100%; one minute: 99%; five minutes: 75%
Core 3: CPU utilization for five seconds: 99%; one minute: 99%; five minutes: 97%
Core 4: CPU utilization for five seconds: 10%; one minute: 9%; five minutes: 32%
Core 5: CPU utilization for five seconds: 7%; one minute: 7%; five minutes: 9%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
6292 3892093 31919631 518 32.62 32.49 32.50 0 stack-mgr
6290 214323 28569234 272 19.36 19.20 19.06 1088 fed
12891 2255018 9172493 265 2.13 1.73 1.69 0 iosd
6870 3906829 26585405 57 1.00 0.97 0.94 0 pdsd
C3850# sho processes cpu detailed process stack-mgr sorted | ex 0.0
Core 0: CPU utilization for five seconds: 18%; one minute: 17%; five minutes: 17%
Core 1: CPU utilization for five seconds: 97%; one minute: 97%; five minutes: 97%
Core 2: CPU utilization for five seconds: 100%; one minute: 99%; five minutes: 72%
Core 3: CPU utilization for five seconds: 99%; one minute: 99%; five minutes: 97%
Core 4: CPU utilization for five seconds: 8%; one minute: 9%; five minutes: 35%
Core 5: CPU utilization for five seconds: 7%; one minute: 7%; five minutes: 9%
PID T C TID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
(%) (%) (%)
6292 L 3811573 3191955 518 32.50 32.42 32.49 0 stack-mgr
6292 L 2 6760 962331 2419381 0 16.12 16.12 16.14 0 Replenish OOB
6292 L 3 6761 3954075 1348173 0 16.12 16.11 16.13 0 OOBnd RX
6292 L 0 6758 3748416 2014982 0 0.16 0.12 0.10 0 SIF SR
C3850#sho processes cpu detailed process fed sorted | ex 0.0
Core 0: CPU utilization for five seconds: 16%; one minute: 17%; five minutes: 17%
Core 1: CPU utilization for five seconds: 96%; one minute: 97%; five minutes: 97%
Core 2: CPU utilization for five seconds: 100%; one minute: 99%; five minutes: 74%
Core 3: CPU utilization for five seconds: 99%; one minute: 99%; five minutes: 97%
Core 4: CPU utilization for five seconds: 6%; one minute: 9%; five minutes: 33%
Core 5: CPU utilization for five seconds: 5%; one minute: 7%; five minutes: 9%
PID T C TID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
(%) (%) (%)
6290 L 198463 2856876 272 18.72 19.21 19.05 1088 fed
6290 L 1 13634 1591433 1172981 0 16.20 16.12 16.13 0 PunjectRx
6290 L 5 13635 1077934 5337598 0 1.42 2.01 1.86 0 PunjectTx
6290 L 0 11361 3072661 3374115 0 0.48 0.50 0.51 0 Xcvr
6290 L 5 6740 1161042 4017281 0 0.32 0.29 0.27 0 fed-ots-nfl
6290 L 4 6737 325901 2638126 0 0.16 0.12 0.13 0 fed-ots-main
6290 L 0 6766 276718 4131325 0 0.06 0.11 0.09 0 IntrDrv
6290 L 0 6731 3026144 7430846 0 0.03 0.02 0.01 1088 fed
6290 L 5 6733 4111991 6713533 0 0.03 0.03 0.03 1088 CMI default xdm
6290 L 1 6290 18980 2622 0 0.00 0.00 0.00 1088 fed
6290 L 0 6734 30230 2707407 0 0.00 0.00 0.00 1088 fed
6290 L 5 6738 999700 4119622 0 0.00 0.01 0.02 0 fed-ots-mo
6290 L 2 6741 0 1411 0 0.00 0.00 0.00 0 fed
6290 L 4 6742 2354905 2508755 0 0.00 0.01 0.02 0 fed
6290 L 0 6743 1488370 4058037 0 0.00 0.00 0.00 0 pdslib thread
6290 L 0 6744 36938 1629076 0 0.00 0.00 0.00 0 Timer
6290 L 0 6799 3121170 4052195 0 0.00 0.01 0.02 0 LED
6290 L 1 11356 10 2384 0 0.00 0.00 0.00 0 Xcvr
6290 L 5 13633 888650 3377878 0 0.00 0.00 0.00 0 PdsEvent
6290 L 1 13636 0 2361 0 0.00 0.00 0.00 0 Consistency
6290 L 1 13637 0 2361 0 0.00 0.00 0.00 0 ShFwd
6290 L 1 13645 0 2369 0 0.00 0.00 0.00 0 eicore_bdn
6290 L 5 13646 0 2369 0 0.00 0.00 0.00 0 eicore_bdn
6290 L 5 13647 0 2368 0 0.00 0.00 0.00 0 eicore_bdn
6290 L 3 13654 30 2410 0 0.00 0.00 0.00 0 eicore_ipc
6290 L 2 13667 0 2526 0 0.00 0.00 0.00 0 fed
6290 L 2 14010 0 2613 0 0.00 0.00 0.00 0 fed
6290 L 0 14093 1677755 5937042 0 0.00 0.01 0.00 0 XcvrPoll
6290 L 0 14094 611630 3985264 0 0.00 0.00 0.00 0 fed-ots-main
之前我就发过类似的帖子,当时有大神回复stack-mgr 导致CPU的可能有几点:
1.是mac-flapping的问题
2.mac-aging timer的问题
3.STP TCN的问题
1.本来确实存在mac-flapping的问题,但我最近已经解决了这个问题,但交换机的CPU仍然很高
第2和第3个原因在交换机上看没有相关的错误提示
再次求大神指点。。。。。先谢一个。
5 条回复5

tianwen
Level 1
Level 1
还有一个问题,我在sho processes cpu,看到进程占用的CPU总数相加才60%左右,为什么最后显示的是90%以上????

Rockyw
Spotlight
Spotlight
楼主可以参考一下
Catalyst 3750 系列交换机 CPU 使用率过高的故障排除
https://www.cisco.com/c/zh_cn/support/docs/switches/catalyst-3750-series-switches/68461-high-cpu-utilization-cat3750.html
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Rockyw | If it solves your problem, please mark as answer. Thanks !

gejunyu
Spotlight
Spotlight
重启设备试试看

vooloo
Level 1
Level 1
我的也挺高,不过用起来没什么异常。

tianwen
Level 1
Level 1
vooloo 发表于 2018-9-26 17:22
我的也挺高,不过用起来没什么异常。

我也是用起来没什么异常,不知道是不是bug来的
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