09-13-2007 10:30 PM - edited 03-05-2019 06:28 PM
Hi all,
I notice very often a high cpu load on both of our 6500 switches, they all have a sup 720.
The output from sh proc cpu det 16408 (ios base)
CPU utilization for five seconds: 59%; one minute: 56%; five minutes: 47%
PID/TID 5Sec 1Min 5Min Process Prio STATE CPU
16408 53.7% 45.7% 36.1% ios-base 100d
1 0.3% 0.4% 0.3% 10 Receive 22h57m
2 0.8% 1.0% 0.4% 5 Condvar 1d17h
4 1.3% 1.4% 2.1% 10 Receive 80.956
6 3.9% 3.1% 2.8% 10 Reply 50m46s
7 29.6% 23.9% 16.7% 21 Intr 39d08h
8 1.0% 1.0% 1.0% 22 Intr 2d06h
11 5.0% 3.6% 3.1% 10 Reply 28m26s
13 1.0% 1.9% 1.7% 10 Receive 35m06s
15 3.0% 3.3% 2.9% 10 Receive 13m08s
17 4.2% 3.4% 2.9% 10 Receive 82.244
18 3.3% 2.5% 2.2% 10 Receive 42m58s
Process sbin/ios-base, type IOS, PID = 16408
CPU utilization for five seconds: 17%/36%; one minute: 16%; five minutes: 15%
Task Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Task Name
2 372992544 947435113 393 1.83% 1.59% 1.43% 0 Service Task
4 75682716 833732606 90 0.47% 0.39% 0.34% 0 Service Task
16 19224691551794399521 1071 6.14% 6.69% 6.59% 0 ARP Input
49 20079392 37178586 540 0.15% 0.15% 0.12% 0 Per-Second Jobs
90 36906803 11312351 3262 0.31% 0.19% 0.16% 0 Compute load avg
98 24336567 252594777 96 0.23% 0.15% 0.13% 0 Service Task
131 5302205993018582975 175 2.07% 1.84% 1.82% 0 IP Input
174 27704490 10355870 2675 0.23% 0.11% 0.11% 0 IPC LC Message H
177 71464178 50188603 1423 0.29% 0.29% 0.24% 0 CEF process
179 76593510 7524416 10179 0.37% 0.27% 0.25% 0 Adj Manager
185 42703197 246284017 173 0.31% 0.29% 0.22% 0 DHCPD Receive
241 166972491 563571741 296 0.87% 0.41% 0.41% 0 Port manager per
317 48625672 168431557 288 0.23% 0.23% 0.23% 0 IGMP Input
318 34415659 174301349 197 0.63% 0.20% 0.15% 0 PIM Process
320 27446549 77322191 354 0.23% 0.18% 0.14% 0 MLSM Process
324 1751262601760848851 99 0.87% 0.84% 0.80% 0 Standby (HSRP)
I notice that the process INTR with prio 21 is always showing 30 % cpu and more.
Do you know why it is showing very often 70 % cpu (total)
best regards
Jorg
09-14-2007 08:45 PM
Hard to say as I do not know what all the processes do. you could try and hook up a packet analyzer that will capture data from say VLAN1 or some VLANS that the MSFC might see traffic from. Some packet storms/floods with specific types of addresses can do things like this. Broadcasts, Multicasts, etc... In any case it might give you some clues.
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide