high CPU utilization on cisco switch 3750

[hamza-ali]

Hi Cisco Team,

i expereince the high cpu utilization in cisco switch 3750..please guide

CPU utilization is about 35%..please let me know its normal or high

[M02@rt37]

Hello @hamza-ali 

Pelase provide us the output of that command:

#show processes cpu sorted

Thanks.

--

https://www.cisco.com/c/en/us/support/docs/switches/catalyst-3750-series-switches/68461-high-cpu-utilization-cat3750.html

[hamza-ali]

Hi

Please find

#show processes cpu sorted
CPU utilization for five seconds: 33%/7%; one minute: 34%; five minutes: 35%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
290 77314875 97149014 795 8.14% 7.71% 7.86% 0 SNMP ENGINE
288 42000482 190399954 220 4.31% 4.56% 4.87% 0 IP SNMP
9 9878227533070738134 0 3.03% 2.98% 3.03% 0 ARP Input
184 178752662 876830363 203 2.07% 2.31% 2.36% 0 IP Input
289 14572378 95103799 153 1.75% 1.55% 1.53% 0 PDU DISPATCHER
190 194192467 164730929 1178 1.27% 0.99% 0.96% 0 Spanning Tree
179 468 216 2166 0.79% 0.48% 0.12% 2 SSH Process
209 117328004 44042418 2663 0.15% 0.60% 0.49% 0 HTTP CORE
137 20178116 13205273 1528 0.15% 0.03% 0.02% 0 HRPC qos request
10 0 1 0 0.00% 0.00% 0.00% 0 CEF MIB API
11 0 1 0 0.00% 0.00% 0.00% 0 AAA_SERVER_DEADT
12 0 2 0 0.00% 0.00% 0.00% 0 AAA high-capacit
13 0 1 0 0.00% 0.00% 0.00% 0 Policy Manager
14 50 11 4545 0.00% 0.00% 0.00% 0 Entity MIB API
15 9053 185210 48 0.00% 0.00% 0.00% 0 EEM ED Syslog
16 0 1 0 0.00% 0.00% 0.00% 0 IFS Agent Manage
17 332 551073 0 0.00% 0.00% 0.00% 0 IPC Dynamic Cach
18 0 1 0 0.00% 0.00% 0.00% 0 IPC Zone Manager
19 49085 32836374 1 0.00% 0.00% 0.00% 0 IPC Periodic Tim
20 0 1 0 0.00% 0.00% 0.00% 0 IPC Managed Time
21 47788 32836396 1 0.00% 0.00% 0.00% 0 IPC Deferred Por
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
22 2172 2203365 0 0.00% 0.00% 0.00% 0 IPC Seat Manager
23 0 1 0 0.00% 0.00% 0.00% 0 IPC Session Serv
24 65317 32836399 1 0.00% 0.00% 0.00% 0 Dynamic ARP Insp
8 0 1 0 0.00% 0.00% 0.00% 0 Crash writer
26 0 1 0 0.00% 0.00% 0.00% 0 License IPC stat
27 0 1 0 0.00% 0.00% 0.00% 0 License IPC serv
28 47939 32836392 1 0.00% 0.00% 0.00% 0 GraphIt
29 0 2 0 0.00% 0.00% 0.00% 0 XML Proxy Client
30 0 1 0 0.00% 0.00% 0.00% 0 Critical Bkgnd
31 214572 34669011 6 0.00% 0.00% 0.00% 0 Net Background
32 0 1 0 0.00% 0.00% 0.00% 0 IDB Work
33 24190 245503 98 0.00% 0.00% 0.00% 0 Logger
34 77015 32836357 2 0.00% 0.00% 0.00% 0 TTY Background
35 1131279 32861045 34 0.00% 0.00% 0.00% 0 Per-Second Jobs
36 10056752 559740 17966 0.00% 0.02% 0.00% 0 Per-minute Jobs
37 9 13 692 0.00% 0.00% 0.00% 0 IF-MGR control p
38 25 6411 3 0.00% 0.00% 0.00% 0 IF-MGR event pro
39 0 1 0 0.00% 0.00% 0.00% 0 AggMgr Process
40 9165709 6614959 1385 0.00% 0.00% 0.00% 0 Compute load avg
25 0 1 0 0.00% 0.00% 0.00% 0 ARP Snoop
41 1030806 9897228 104 0.00% 0.01% 0.00% 0 HC Counter Timer
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
43 0 1 0 0.00% 0.00% 0.00% 0 HRPC hdwl reques
44 0 1 0 0.00% 0.00% 0.00% 0 HRPC emac reques
45 0 1 0 0.00% 0.00% 0.00% 0 HRPC lpip reques
46 0 2 0 0.00% 0.00% 0.00% 0 HLPIP Sync Proce
47 0 1 0 0.00% 0.00% 0.00% 0 HRPC Multi-FS Sy
48 0 20 0 0.00% 0.00% 0.00% 0 HULC multifs pro
49 0 2 0 0.00% 0.00% 0.00% 0 MIRAGE RBCP Moni
50 0 1 0 0.00% 0.00% 0.00% 0 Platform-IPe Pro
51 0 1 0 0.00% 0.00% 0.00% 0 Hulc EEM Process
52 58971 36848 1600 0.00% 0.00% 0.00% 0 Collection proce
53 136909 6602674 20 0.00% 0.00% 0.00% 0 Hulc LED Alchemy
54 0 1 0 0.00% 0.00% 0.00% 0 HRPC asic-stats
55 0 1 0 0.00% 0.00% 0.00% 0 HRPC hsm request
56 0 7 0 0.00% 0.00% 0.00% 0 Stack Mgr
57 142 6 23666 0.00% 0.00% 0.00% 0 Stack Mgr Notifi
58 3097189 356334336 8 0.00% 0.00% 0.00% 0 RedEarth Tx Mana
59 4368931311121878 0 0.00% 0.00% 0.00% 0 RedEarth Rx Mana
60 201 220431 0 0.00% 0.00% 0.00% 0 HULC Thermal Pro
61 50298161770355312 2 0.00% 0.02% 0.00% 0 Fifo Error Detec
62 43668 2193 19912 0.00% 0.00% 0.00% 0 Adjust Regions
63 133506 32836398 4 0.00% 0.00% 0.00% 0 hrpc -> response
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
64 313620 8690378 36 0.00% 0.00% 0.00% 0 hrpc -> request
65 650978 8097957 80 0.00% 0.03% 0.03% 0 hrpc <- response
66 0 1 0 0.00% 0.00% 0.00% 0 HRPC hcomp reque
67 0 11 0 0.00% 0.00% 0.00% 0 HULC Device Mana
68 0 3 0 0.00% 0.00% 0.00% 0 HRPC hdm non blo
69 0 2 0 0.00% 0.00% 0.00% 0 HRPC hdm blockin
70 207155 6602670 31 0.00% 0.00% 0.00% 0 HIPC bkgrd proce
7 343110 8002215 42 0.00% 0.00% 0.00% 0 Net Input
72 625 13685 45 0.00% 0.00% 0.00% 0 Hulc Port-Securi
42 100017 656350741 0 0.00% 0.00% 0.00% 0 DownWhenLooped
74 0 1 0 0.00% 0.00% 0.00% 0 HRPC hlfm reques
73 0 1 0 0.00% 0.00% 0.00% 0 HRPC hpsecure re
76 381461 32836361 11 0.00% 0.00% 0.00% 0 HLFM aging proce
77 400010 992764481 0 0.00% 0.00% 0.00% 0 HLFM address ret
78 0 1 0 0.00% 0.00% 0.00% 0 HRPC hrcmd reque
79 707866 4175249 169 0.00% 0.03% 0.04% 0 HRPC hulc misc r
80 0 1 0 0.00% 0.00% 0.00% 0 HRPC system mtu
6 0 2 0 0.00% 0.00% 0.00% 0 Timers
82 0 2 0 0.00% 0.00% 0.00% 0 HVLAN Mapped Vla
83 0 2 0 0.00% 0.00% 0.00% 0 Vlan shutdown Pr
84 52 117 444 0.00% 0.00% 0.00% 0 HRPC vlan reques
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
85 0 1 0 0.00% 0.00% 0.00% 0 HULC VLAN REF Ba
86 0 1 0 0.00% 0.00% 0.00% 0 HRPC hfbm reques
87 1735 2203363 0 0.00% 0.00% 0.00% 0 MDFS LC Download
88 0 1 0 0.00% 0.00% 0.00% 0 HRPC ilp request
89 0 1 0 0.00% 0.00% 0.00% 0 HPM Msg Retry Pr
5 5568 5501 1012 0.00% 0.00% 0.00% 0 Pool Manager
91 1709612 302304652 5 0.00% 0.00% 0.00% 0 hpm main process
4 39858093 3914222 10182 0.00% 0.06% 0.10% 0 Check heaps
93 0 1 0 0.00% 0.00% 0.00% 0 HRPC pm request
94 0 3 0 0.00% 0.00% 0.00% 0 HPM if_num mappi
3 0 1 0 0.00% 0.00% 0.00% 0 CEF RP IPC Backg
96 0 1 0 0.00% 0.00% 0.00% 0 HRPC pm-counters
97 0 1 0 0.00% 0.00% 0.00% 0 hpm vp events ca
98 0 1 0 0.00% 0.00% 0.00% 0 HRPC hcmp reques
99 0 15758 0 0.00% 0.00% 0.00% 0 HCEF ADJ Refresh
100 0 1 0 0.00% 0.00% 0.00% 0 HRPC hl3mm reque
101 0 1 0 0.00% 0.00% 0.00% 0 hl3md_rpfq_thrl_
102 163420 23090857 7 0.00% 0.00% 0.00% 0 hl3mm
103 5030 16492238 0 0.00% 0.00% 0.00% 0 hl3mm_rp
2 4609 6602763 0 0.00% 0.00% 0.00% 0 Load Meter
105 0 1 0 0.00% 0.00% 0.00% 0 HRPC acl request
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
106 0 55 0 0.00% 0.00% 0.00% 0 HACL Acl Manager
107 0 1 0 0.00% 0.00% 0.00% 0 HRPC backup inte
108 352 8 44000 0.00% 0.34% 0.09% 1 SSH Process
109 0 1 0 0.00% 0.00% 0.00% 0 HRPC cdp request
110 0 1 0 0.00% 0.00% 0.00% 0 HRPC lldp reques
111 0 1 0 0.00% 0.00% 0.00% 0 HRPC dot1x reque
112 0 4 0 0.00% 0.00% 0.00% 0 HULC DOT1X Proce
113 0 1 0 0.00% 0.00% 0.00% 0 HRPC foxhound re
114 8 9 888 0.00% 0.00% 0.00% 0 Hulc Foxhound Pr
115 0 1 0 0.00% 0.00% 0.00% 0 HRPC sdm request
116 694509 164162825 4 0.00% 0.00% 0.00% 0 Hulc Storm Contr
117 0 2 0 0.00% 0.00% 0.00% 0 HSTP Sync Proces
118 0 1 0 0.00% 0.00% 0.00% 0 HRPC stp_cli req
119 0 1 0 0.00% 0.00% 0.00% 0 HRPC stp_state_s
120 0 2 0 0.00% 0.00% 0.00% 0 S/W Bridge Proce
121 0 1 0 0.00% 0.00% 0.00% 0 HRPC hudld reque
122 0 1 0 0.00% 0.00% 0.00% 0 HRPC vqpc reques
123 0 1 0 0.00% 0.00% 0.00% 0 BCM cable diags
124 0 1 0 0.00% 0.00% 0.00% 0 HRPC iec_load_ba
125 0 1 0 0.00% 0.00% 0.00% 0 HRPC l2pt qnq rp
126 0 1 0 0.00% 0.00% 0.00% 0 HRPC IPe request
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
127 0 1 0 0.00% 0.00% 0.00% 0 HRPC hled reques
128 6879523 957770760 7 0.00% 0.00% 0.00% 0 Hulc LED Process
129 4668314 90771899 51 0.00% 0.00% 0.00% 0 HL3U bkgrd proce
130 0 1 0 0.00% 0.00% 0.00% 0 HRPC hl3u reques
131 3471 7550197 0 0.00% 0.00% 0.00% 0 HL3U PBR bkgrd p
132 291 275508 1 0.00% 0.00% 0.00% 0 HL3U PBR n-h res
133 0 1 0 0.00% 0.00% 0.00% 0 HRPC dtp request
134 0 1 0 0.00% 0.00% 0.00% 0 HRPC show_forwar
135 0 1 0 0.00% 0.00% 0.00% 0 HRPC snmp reques
136 15533916 6602646 2352 0.00% 0.04% 0.05% 0 HQM Stack Proces
75 4443706 983847677 4 0.00% 0.00% 0.00% 0 HLFM address lea
138 0 1 0 0.00% 0.00% 0.00% 0 HRPC span reques
139 0 1 0 0.00% 0.00% 0.00% 0 HRPC obfl reques
140 0 1 0 0.00% 0.00% 0.00% 0 HRPC system post
71 0 1 0 0.00% 0.00% 0.00% 0 RTTYS Process
81 6776 11010324 0 0.00% 0.00% 0.00% 0 HVLAN main bkgrd
143 32 183703 0 0.00% 0.00% 0.00% 0 HCMP sync proces
144 0 2 0 0.00% 0.00% 0.00% 0 image mgr
145 4748 11010324 0 0.00% 0.00% 0.00% 0 Power RPS Proces
146 13439 64272 209 0.00% 0.00% 0.00% 0 HL2MCM
147 9 3 3000 0.00% 0.00% 0.00% 0 HL2MCM
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
148 9522597 32836139 290 0.00% 0.00% 0.00% 0 PI MATM Aging Pr
149 0 2 0 0.00% 0.00% 0.00% 0 Switch Backup In
150 412 551072 0 0.00% 0.00% 0.00% 0 MMN bkgrd proces
151 0 2 0 0.00% 0.00% 0.00% 0 Dot1x Mgr Proces
152 0 2 0 0.00% 0.00% 0.00% 0 802.1x Accountin
153 0 1 0 0.00% 0.00% 0.00% 0 MAB Framework
154 406 3418 118 0.00% 0.00% 0.00% 0 802.1x switch
155 415 551073 0 0.00% 0.00% 0.00% 0 802.1x MDA Aging
156 0 1 0 0.00% 0.00% 0.00% 0 802.1x Webauth F
157 1864645 19277944 96 0.00% 0.00% 0.00% 0 DTP Protocol
158 0 1 0 0.00% 0.00% 0.00% 0 EAP Framework
159 0 1 0 0.00% 0.00% 0.00% 0 HRPC dai request
160 0 1 0 0.00% 0.00% 0.00% 0 HULC DAI Process
161 0 1 0 0.00% 0.00% 0.00% 0 HRPC ip device t
90 93 275539 0 0.00% 0.00% 0.00% 0 DHCPD Timer
163 0 1 0 0.00% 0.00% 0.00% 0 HULC IP Source g
164 8548 33066534 0 0.00% 0.00% 0.00% 0 UDLD
165 226 1102218 0 0.00% 0.00% 0.00% 0 Port-Security
166 16 6401 2 0.00% 0.00% 0.00% 0 Switch IP Host T
167 0 1 0 0.00% 0.00% 0.00% 0 Link State Group
168 710 3304889 0 0.00% 0.00% 0.00% 0 Ethchnl
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
169 139696 1143249 122 0.00% 0.00% 0.00% 0 VMATM Callback
170 0 2 0 0.00% 0.00% 0.00% 0 UNCLIP Process
171 17067189 345612662 49 0.00% 0.04% 0.02% 0 IPe BSSM Manager
172 0 220 0 0.00% 0.00% 0.00% 0 AAA Server
173 0 1 0 0.00% 0.00% 0.00% 0 AAA ACCT Proc
174 0 1 0 0.00% 0.00% 0.00% 0 ACCT Periodic Pr
175 0 1 0 0.00% 0.00% 0.00% 0 AAA System Acct
176 0 1 0 0.00% 0.00% 0.00% 0 Auth-proxy AAA B
177 34 110313 0 0.00% 0.00% 0.00% 0 IP Admin SM Proc
178 6207600 22641108 274 0.00% 0.00% 0.00% 0 CDP Protocol
92 1042 20076 51 0.00% 0.00% 0.00% 0 HPM Stack Sync P
180 0 1 0 0.00% 0.00% 0.00% 0 HRPC hl2mcm igmp
181 0 2 0 0.00% 0.00% 0.00% 0 AAA Dictionary R
182 309 275892 1 0.00% 0.00% 0.00% 0 DHCP Snooping
183 0 3 0 0.00% 0.00% 0.00% 0 CEF switching ba
95 3641504 32836203 110 0.00% 0.01% 0.00% 0 hpm counter proc
185 0 1 0 0.00% 0.00% 0.00% 0 ICMP event handl
186 24546 63816877 0 0.00% 0.00% 0.00% 0 IP ARP Track
187 91646 328302913 0 0.00% 0.00% 0.00% 0 MDFS MFIB Proces
188 8061999 24842902 324 0.00% 0.06% 0.07% 0 ADJ resolve proc
104 0 1 0 0.00% 0.00% 0.00% 0 HACL Queue Proce
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
191 122 551079 0 0.00% 0.00% 0.00% 0 Spanning Tree St
192 0 2 0 0.00% 0.00% 0.00% 0 EAPoUDP Process
193 0 2 0 0.00% 0.00% 0.00% 0 KRB5 AAA
194 44016 684123 64 0.00% 0.00% 0.00% 0 CEF background p
195 0 1 0 0.00% 0.00% 0.00% 0 IP IRDP
196 0 1 0 0.00% 0.00% 0.00% 0 CEF RF HULC Conv
197 0 3 0 0.00% 0.00% 0.00% 0 XDR mcast
198 0 1 0 0.00% 0.00% 0.00% 0 IPC LC Message H
199 0 1 0 0.00% 0.00% 0.00% 0 XDR RP Ping Back
200 50 276158 0 0.00% 0.00% 0.00% 0 XDR RP backgroun
201 0 1 0 0.00% 0.00% 0.00% 0 XDR RP Test Back
202 0 3 0 0.00% 0.00% 0.00% 0 MDFS LC Process
203 99 413322 0 0.00% 0.00% 0.00% 0 Cluster L2
204 1054 3304888 0 0.00% 0.00% 0.00% 0 Cluster RARP
205 974278 9483085 102 0.00% 0.00% 0.00% 0 Cluster Base
206 29698 3031388 9 0.00% 0.00% 0.00% 0 TCP Timer
207 454 973 466 0.00% 0.00% 0.00% 0 TCP Protocols
208 0 1 0 0.00% 0.00% 0.00% 0 Socket Timers
1 101 1142 88 0.00% 0.00% 0.00% 0 Chunk Manager
210 3748 41985 89 0.00% 0.00% 0.00% 0 RARP Input
211 0 1 0 0.00% 0.00% 0.00% 0 802.1x Critical
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
212 5360025 19865637 269 0.00% 0.03% 0.00% 0 DHCPD Receive
213 0 2 0 0.00% 0.00% 0.00% 0 IPe BS
214 0 2 0 0.00% 0.00% 0.00% 0 IPe P2P
215 19651 550907 35 0.00% 0.00% 0.00% 0 IPe BS SAF
216 0 1 0 0.00% 0.00% 0.00% 0 IPe DM Main
217 0 1 0 0.00% 0.00% 0.00% 0 IPe DM Backgroun
218 138998 328311311 0 0.00% 0.00% 0.00% 0 IPe Host
219 0 1 0 0.00% 0.00% 0.00% 0 HRPC dhcp snoopi
220 0 4 0 0.00% 0.00% 0.00% 0 HULC DHCP Snoopi
221 6814665 552548 12333 0.00% 0.00% 0.00% 0 IGMPSN L2MCM
222 41538 412374 100 0.00% 0.00% 0.00% 0 IGMPSN MRD
223 15663699 20650321 758 0.00% 0.07% 0.08% 0 IGMPSN
224 0 1 0 0.00% 0.00% 0.00% 0 IGMPQR
225 0 2 0 0.00% 0.00% 0.00% 0 L2TRACE SERVER
226 98945 638199 155 0.00% 0.00% 0.00% 0 MLDSN L2MCM
227 0 1 0 0.00% 0.00% 0.00% 0 MRD
228 0 1 0 0.00% 0.00% 0.00% 0 MLD_SNOOP
229 0 1 0 0.00% 0.00% 0.00% 0 HRPC hwccp reque
230 0 1 0 0.00% 0.00% 0.00% 0 HULC_WCCP_BACKGR
231 0 1 0 0.00% 0.00% 0.00% 0 HRPC hl2mcm mlds
232 255875 623186 410 0.00% 0.00% 0.00% 0 IP RIB Update
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
233 12372 5658837 2 0.00% 0.00% 0.00% 0 Transport Port A
234 0 1 0 0.00% 0.00% 0.00% 0 HRPC x_setup req
235 211699 330215603 0 0.00% 0.00% 0.00% 0 MDFS RP process
236 14004562 68484 204493 0.00% 0.08% 0.18% 0 crypto sw pk pro
237 1435 6772 211 0.00% 0.00% 0.00% 0 LOCAL AAA
239 0 2 0 0.00% 0.00% 0.00% 0 TPLUS
240 9 12 750 0.00% 0.00% 0.00% 0 crypto engine pr
241 25 4 6250 0.00% 0.00% 0.00% 0 Crypto CA
242 0 1 0 0.00% 0.00% 0.00% 0 Crypto PKI-CRL
243 0 1 0 0.00% 0.00% 0.00% 0 Crypto SSL
244 0 1 0 0.00% 0.00% 0.00% 0 encrypt proc
245 125 6318 19 0.00% 0.00% 0.00% 0 VTP Trap Process
246 0 2 0 0.00% 0.00% 0.00% 0 VTPMIB EDIT BUFF
247 0 2 0 0.00% 0.00% 0.00% 0 DHCP Security He
248 0 1 0 0.00% 0.00% 0.00% 0 HCD Process
249 0 1 0 0.00% 0.00% 0.00% 0 HRPC cable diagn
250 0 2 0 0.00% 0.00% 0.00% 0 DiagCard2/-1
251 80826 120144595 0 0.00% 0.00% 0.00% 0 PM Callback
252 71167 2057733 34 0.00% 0.00% 0.00% 0 VLAN Manager
253 54103 9365580 5 0.00% 0.00% 0.00% 0 DHCPD Database
254 823 2649310 0 0.00% 0.00% 0.00% 0 dhcp snooping sw
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
255 0 1 0 0.00% 0.00% 0.00% 0 Licensing MIB pr
257 0 2 0 0.00% 0.00% 0.00% 0 AAA SEND STOP EV
258 0 1 0 0.00% 0.00% 0.00% 0 Syslog Traps
259 139776 112591 1241 0.00% 0.00% 0.00% 0 Syslog
261 477 9770 48 0.00% 0.00% 0.00% 0 EEM Server
262 0 2 0 0.00% 0.00% 0.00% 0 EEM Policy Direc
263 0 2 0 0.00% 0.00% 0.00% 0 EEM ED CLI
264 0 3 0 0.00% 0.00% 0.00% 0 EEM ED Counter
265 0 3 0 0.00% 0.00% 0.00% 0 EM ED GOLD
266 0 3 0 0.00% 0.00% 0.00% 0 EEM ED Interface
267 0 3 0 0.00% 0.00% 0.00% 0 EEM ED IOSWD
268 0 3 0 0.00% 0.00% 0.00% 0 EEM ED None
269 0 3 0 0.00% 0.00% 0.00% 0 EEM ED OIR
271 0 3 0 0.00% 0.00% 0.00% 0 EEM ED SNMP
272 0 2 0 0.00% 0.00% 0.00% 0 EEM ED Snmp_Prox
273 858 826687 1 0.00% 0.00% 0.00% 0 EEM ED Timer
274 0 3 0 0.00% 0.00% 0.00% 0 EEM ED Test
275 0 3 0 0.00% 0.00% 0.00% 0 EEM ED Config
276 0 3 0 0.00% 0.00% 0.00% 0 EEM ED Env
277 0 2 0 0.00% 0.00% 0.00% 0 STP FAST TRANSIT
278 0 2 0 0.00% 0.00% 0.00% 0 CSRT RAPID TRANS
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
279 8 3 2666 0.00% 0.00% 0.00% 0 EEM ED RPC
280 3956 18365 215 0.00% 0.00% 0.00% 0 SSH Event handle
281 0 1 0 0.00% 0.00% 0.00% 0 DiagCard1/-1
282 1359504 51337830 26 0.00% 0.00% 0.00% 0 CEF: IPv4 proces
283 8 7 1142 0.00% 0.00% 0.00% 0 ADJ background
284 39312 940602 41 0.00% 0.00% 0.00% 0 IP Background
287 0 8 0 0.00% 0.00% 0.00% 0 SNMP Timers
141 0 1 0 0.00% 0.00% 0.00% 0 Hulc Reload Mana
142 0 1 0 0.00% 0.00% 0.00% 0 HRPC hrcli-event
162 0 1 0 0.00% 0.00% 0.00% 0 HRPC ip source g
291 0 2 0 0.00% 0.00% 0.00% 0 IP SNMPV6
292 0 1 0 0.00% 0.00% 0.00% 0 SNMP ConfCopyPro
293 0 3 0 0.00% 0.00% 0.00% 0 SNMP Traps
294 1516429 38577653 39 0.00% 0.00% 0.00% 0 NTP
295 9 219 41 0.00% 0.00% 0.00% 0 hulc cfg mgr mas
296 436742 2044 213670 0.00% 0.00% 0.00% 0 hulc running con
297 0 1 0 0.00% 0.00% 0.00% 0 HULC PM Vector P
298 0 1 0 0.00% 0.00% 0.00% 0 HULC PM Vector P
299 0 1 0 0.00% 0.00% 0.00% 0 HULC PM Vector P
300 0 1 0 0.00% 0.00% 0.00% 0 HULC PM Vector P
301 0 1 0 0.00% 0.00% 0.00% 0 HULC PM Vector P
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
302 0 1 0 0.00% 0.00% 0.00% 0 HULC PM Vector P
303 0 1 0 0.00% 0.00% 0.00% 0 HULC PM Vector P
304 0 1 0 0.00% 0.00% 0.00% 0 HULC PM Vector P
305 0 1 0 0.00% 0.00% 0.00% 0 HULC PM Vector P
306 0 1 0 0.00% 0.00% 0.00% 0 HULC PM Vector P
307 0 1 0 0.00% 0.00% 0.00% 0 HULC PM Vector P
308 0 1 0 0.00% 0.00% 0.00% 0 HULC PM Vector P
309 0 1 0 0.00% 0.00% 0.00% 0 HULC PM Vector P
310 0 1 0 0.00% 0.00% 0.00% 0 HULC PM Vector P
311 0 1 0 0.00% 0.00% 0.00% 0 HULC PM Vector P
312 0 1 0 0.00% 0.00% 0.00% 0 HULC PM Vector P
313 0 1 0 0.00% 0.00% 0.00% 0 HULC PM Vector P
314 0 1 0 0.00% 0.00% 0.00% 0 HULC PM Vector P
315 0 1 0 0.00% 0.00% 0.00% 0 HULC PM Vector P
316 0 1 0 0.00% 0.00% 0.00% 0 HULC PM Vector P
317 0 1 0 0.00% 0.00% 0.00% 0 HULC PM Vector P
318 0 1 0 0.00% 0.00% 0.00% 0 HULC PM Vector P
319 0 1 0 0.00% 0.00% 0.00% 0 HULC PM Vector P
320 0 1 0 0.00% 0.00% 0.00% 0 HULC PM Vector P
321 0 1 0 0.00% 0.00% 0.00% 0 HULC PM Vector P
322 0 1 0 0.00% 0.00% 0.00% 0 HULC PM Vector P
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
323 0 1 0 0.00% 0.00% 0.00% 0 HULC PM Vector P
324 0 1 0 0.00% 0.00% 0.00% 0 HULC PM Vector P
325 0 1 0 0.00% 0.00% 0.00% 0 HULC PM Vector P
326 0 1 0 0.00% 0.00% 0.00% 0 LICENSE AGENT
327 1378 71935 19 0.00% 0.00% 0.00% 0 EIGRP: Router
328 1295179 7973951 162 0.00% 0.00% 0.00% 0 EIGRP-IPv4:
329 773704 28941812 26 0.00% 0.00% 0.00% 0 EIGRP-IPv4: Hell
330 23996 9752 2460 0.00% 0.00% 0.00% 0 SpanTree Helper

[Leo Laohoo]

<75% for classic IOS is normal. 

[M02@rt37]

Thanks @hamza-ali fort that ouput!

An average CPU of around 35% is normal and not a problem unless it climbs above 60–70% (as Leo said) or impacts performance.

Regarding your output, most of that load is caused by SNMP polling, likely due to frequent or heavy monitoring queries, while a smaller share comes from ARP and broadcast trafic, which is also typical.

So, no immediate issue ! But you can optimize by reducing SNMP polling frequency and checking for excessive broadcast trafic...

[MHM Cisco World]

Normal dont worry 

To more check do

Show cpu history 

You will see SW cpu line is flat with little peaks 

MHM

[hamza-ali]

There is no Command exists is Switch

show cpu history

[MHM Cisco World]

show processes cpu history

[hamza-ali]

Please find

show processes cpu history

5533333222223333322222333333333344444333332222233333222223
3333333888882222288888111117777766666111118888833333666661
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)

5454544555544555455444555543445555455656454554455555455554
1939355414479541403995102579992003921300969059933540400005
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%

6667656555755656555775446645334353333443635575535564444433435333334334
4380199314139324368327951240869889126103565514990276028391217413206520
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)
* = maximum CPU% # = average CPU%

[MHM Cisco World]

It normal dont worry 

MHM

[hamza-ali]

can you please tell me 

what are the abnormal CPU utilization because that's my core switch
also i have an distribution switch with lowest CPU utilization11%

[MHM Cisco World]

Cpu utilize depend on feature you run and sure if you use new platforms or old (cat3k is old).

What meaning of feature 

For example' if SW run dhcp snooping sure have high utilize than one dont run it 

Same for dot1x 

Same for EEM 

Same for netflow 

Same for syslog (no trap)

Each one of these features increase utility of cpu 

But as rule you need to make cpu utilize below certain points

This point for me it must below 60% 

Other more experiences engineer like M02@rt37 and @Leo Laohoo  it must below 75%.

MHM

[Leo Laohoo]

I (still) have several stacks of 3750X, IOS version 12.2(55)SE6 and uptime of >7 years, with 99% CPU utilization because of DNAC.  

Not a single one of the switches in the stack has suffered any crashes and I could not find any performance "hits" because of this.  

Classic IOS is very forgiving.

[Joseph W. Doherty]

As the others have already noted your "high" CPU utilization shouldn't be an issue.

Remember on switches the data plane is processed by dedicated hardware and isn't much impacted by CPU loading.

In your case, SNMP is perhaps higher than expected, which noted by another might be due to frequent polling (and/or the volume of what's being polled).

Although it's a relatively low CPU loading, the IP Input level could be of some concern as that's data plane traffic being processed by the CPU.

[Mark Elsen]

  - @hamza-ali     Besides other advices it's always good practice to check the software version and use (upgrade) to the latest advisory release for this model (in case of bugs). Especially if you are currently using an older release ,

  M.