12-04-2012 12:12 PM - edited 03-07-2019 10:24 AM
Seeing very high CPU on one of our 3750X stacks. Usally its around 30% but recently its 70, 80, 90 or maxed at 100% during the main day.
IOS version c3750e-universalk9-mz.122-55.SE1.bin.
Has a ten gig uplink connected to a nexus 7k and another ten gig connected to another 7k. Running Layer 3 and EIGRP on the 3750X.
Is this normal for the CPU?
#sh processes cpu history
5555555554444455555555555555588888666669999888885555577777
8888000001111111111222227777755555666662222222229999977777
100
90 ***** ****
80 ***** ********* *****
70 ******************* *****
60 **** **********************************
50 ********* ********************************************
40 **********************************************************
30 **********************************************************
20 **********************************************************
10 **********************************************************
0....5....1....1....2....2....3....3....4....4....5....5....
0 5 0 5 0 5 0 5 0 5
CPU% per second (last 60 seconds)
1 1
9767879979787656790608888987655996687678888766788688899779
2656585452606260420108897312089806303930545519713514611107
100 * * * * *
90 * * ** * ** ****** ** * * *** *
80 ** ***#****** ** #**#*#* #* * ***** *** ***** *
70 #***####***** **# #######* #** *****###* *#****#*##**#
60 ##*##########****##*#######****#******######*#############
50 ##########################################################
40 ##########################################################
30 ##########################################################
20 ##########################################################
10 ##########################################################
0....5....1....1....2....2....3....3....4....4....5....5....
0 5 0 5 0 5 0 5 0 5
CPU% per minute (last 60 minutes)
* = maximum CPU% # = average CPU%
1 1
0999999984496655586578999990999995896766565655755655456655594555655696
0856979738992746602908899920997884596100357434396030822425198632325243
100 ******** * **** ****** * *
90 ******** * ************ ** * *
80 ********* * * ************ ** * *
70 ********* * * * ***##***##*** **** * * * *
60 ##*####** *** *******####*####** ****** *** **** ** * * * * ****
50 ########*************###########**************************************
40 #########***********#############*************************************
30 ######################################################################
20 ######################################################################
10 ######################################################################
0....5....1....1....2....2....3....3....4....4....5....5....6....6....7.
0 5 0 5 0 5 0 5 0 5 0 5 0
CPU% per hour (last 72 hours)
#sh processes cpu sorted
CPU utilization for five seconds: 50%/5%; one minute: 58%; five minutes: 63%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
159 2834098413 336879982 8412 15.33% 15.24% 15.28% 0 Hulc LED Process
201 87242591 171844402 507 11.82% 17.25% 20.74% 0 IP Input
75 977278274 159196566 6138 5.59% 4.95% 4.90% 0 RedEarth Tx Mana
74 321267248 260833627 1231 2.07% 2.44% 2.56% 0 RedEarth I2C dri
119 288345412 34415982 8378 1.91% 1.63% 1.64% 0 hpm counter proc
366 40658 2869 14171 0.95% 0.37% 0.50% 2 SSH Process
171 69569880 34027167 2044 0.79% 0.53% 0.51% 0 HRPC qos request
170 59830354 3411209 17539 0.31% 0.35% 0.32% 0 HQM Stack Proces
115 12883059 211235534 60 0.31% 0.13% 0.11% 0 hpm main process
99 1528727 489856679 3 0.31% 0.03% 0.00% 0 HLFM address ret
34 11133578 3252382 3423 0.31% 0.09% 0.06% 0 Net Background
189 55536512 82178186 675 0.15% 0.39% 0.38% 0 CDP Protocol
247 3014880 10005666 301 0.15% 0.04% 0.01% 0 IPC LC Message H
38 6805234 16967063 401 0.15% 0.05% 0.08% 0 Per-Second Jobs
14 0 1 0 0.00% 0.00% 0.00% 0 Policy Manager
Solved! Go to Solution.
12-04-2012 05:21 PM
Upgrade your IOS to 12.2(55)SE6. This version is one of the most stable.
12-04-2012 02:10 PM
Did you change any configuration of the switch recently? Or has traffic going through the switch changed noticabely?
12-04-2012 02:19 PM
It used to be single connected 1 gig to a 6509 by L3. The day after we dual connected Ten gig to a nexus 7k we noticed the CPU spike. Its doing equal cost EIGRP routing over both links.
12-04-2012 05:21 PM
Upgrade your IOS to 12.2(55)SE6. This version is one of the most stable.
12-07-2012 10:56 AM
That worked for us. Upgraded to 12.2(55)SE6 and its been running 30 % solid since. Thank You.
12-07-2012 03:45 PM
Glad to see it's working.
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: