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.
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