The show processes cpu command displays detailed CPU utilization statistics about the active processes.
Router_A#show process cpu CPU utilization for five seconds: 11%/11%; one minute: 11%; five minutes: 11% PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process 1 29168 102639 284 0.00% 0.00% 0.00% 0 Load Meter 2 9720356 1372267 7083 0.00% 0.02% 0.03% 0 Exec 3 1947776 115328 16889 0.00% 0.31% 0.32% 0 Check heaps 4 4 1 4000 0.00% 0.00% 0.00% 0 Chunk Manager 5 0 1 0 0.00% 0.00% 0.00% 0 Pool Manager 6 0 2 0 0.00% 0.00% 0.00% 0 Timers 7 4 3 1333 0.00% 0.00% 0.00% 0 Serial Backgroun 8 34792 8602 4044 0.00% 0.00% 0.00% 0 ARP Input 9 0 4 0 0.00% 0.00% 0.00% 0 DDR Timers 10 4 2 2000 0.00% 0.00% 0.00% 0 Dialer event 11 28 2 14000 0.00% 0.00% 0.00% 0 Entity MIB API 12 4 1 4000 0.00% 0.00% 0.00% 0 SERIAL A'detect 13 0 1 0 0.00% 0.00% 0.00% 0 Critical Bkgnd 14 180024 81438 2210 0.00% 0.00% 0.00% 0 Net Background 15 8 37 216 0.00% 0.00% 0.00% 0 Logger 16 27544 512620 53 0.00% 0.00% 0.00% 0 TTY Background 17 28036 512643 54 0.00% 0.00% 0.00% 0 Per-Second Jobs 18 89792 305625 293 0.00% 0.00% 0.00% 0 Net Input 19 27936 102640 272 0.08% 0.00% 0.00% 0 Compute load avg 20 608412 8551 71150 0.00% 0.13% 0.07% 0 Per-minute Jobs 21 110216 116510 945 0.00% 0.00% 0.00% 0 IP Input 22 110828 68967 1606 0.00% 0.01% 0.00% 0 CDP Protocol 23 104 855 121 0.00% 0.00% 0.00% 0 MOP Protocols 24 0 1 0 0.00% 0.00% 0.00% 0 X.25 Encaps Mana 25 4 2 2000 0.00% 0.00% 0.00% 0 ATM OAM Input 26 4 2 2000 0.00% 0.00% 0.00% 0 ATM OAM TIMER 27 4 2 2000 0.00% 0.00% 0.00% 0 Emulator 28 0 1 0 0.00% 0.00% 0.00% 0 PPP IP Add Route 29 229260 8726 26273 0.00% 0.04% 0.00% 0 IP Background 30 0 1 0 0.00% 0.00% 0.00% 0 TCP Timer 31 0 1 0 0.00% 0.00% 0.00% 0 TCP Protocols 32 0 1 0 0.00% 0.00% 0.00% 0 Probe Input 33 0 1 0 0.00% 0.00% 0.00% 0 RARP Input 34 0 1 0 0.00% 0.00% 0.00% 0 HTTP Timer 35 0 1 0 0.00% 0.00% 0.00% 0 Socket Timers 36 16 2 8000 0.00% 0.00% 0.00% 0 DHCPD Receive 37 3924 8552 458 0.00% 0.00% 0.00% 0 IP Cache Ager 38 0 1 0 0.00% 0.00% 0.00% 0 PAD InCall 39 4 2 2000 0.00% 0.00% 0.00% 0 X.25 Background 40 6556 8551 766 0.00% 0.00% 0.00% 0 TCP Intercept Ti 41 0 2 0 0.00% 0.00% 0.00% 0 SPX Input 42 77100 8769 8792 0.00% 0.01% 0.00% 0 Adj Manager 43 4 2 2000 0.00% 0.00% 0.00% 0 SSCOP Input 44 4 2 2000 0.00% 0.00% 0.00% 0 SSCOP Output 45 6988 8552 817 0.00% 0.00% 0.00% 0 SSCOP Timer 46 4 2 2000 0.00% 0.00% 0.00% 0 ATMSIG DRIVERAPI 47 4 1 4000 0.00% 0.00% 0.00% 0 ISDN Timer 48 0 1 0 0.00% 0.00% 0.00% 0 Time Range Proce 49 191560 102664 1865 0.08% 0.01% 0.00% 0 FR LMI 50 40 7 5714 0.00% 0.00% 0.00% 0 CNS Event Servic 51 4 1 4000 0.00% 0.00% 0.00% 0 CallMIB Backgrou 52 0 1 0 0.00% 0.00% 0.00% 0 ISDNMIB Backgrou 53 4 1 4000 0.00% 0.00% 0.00% 0 SNMP ConfCopyPro 54 0 1 0 0.00% 0.00% 0.00% 0 Syslog Traps 55 5836 51297 113 0.00% 0.00% 0.00% 0 RMON Recycle Pro 56 0 2 0 0.00% 0.00% 0.00% 0 RMON Deferred Se 57 4 1 4000 0.00% 0.00% 0.00% 0 RMON Packets 58 326940 541533 603 0.16% 0.01% 0.00% 0 CLNS Input 59 28848 129628 222 0.00% 0.00% 0.00% 0 ES-IS Routing 60 1220796 1383264 882 0.00% 0.17% 0.18% 0 IS-IS Adj 61 385972 617767 624 0.00% 0.09% 0.06% 0 IS-IS Upd 63 232 4280 54 0.00% 0.00% 0.00% 0 DHCPD Timer 64 43196 145335 297 0.00% 0.00% 0.00% 0 DHCPD Database 65 120308 5078626 23 0.08% 0.01% 0.00% 0 FR Broadcast Out 66 19576 20890 937 0.00% 0.00% 0.00% 0 FR ARP 67 788 25677 30 0.00% 0.00% 0.00% 0 FR TUNNEL 68 0 1 0 0.00% 0.00% 0.00% 0 FRF9 manager 69 4 1 4000 0.00% 0.00% 0.00% 0 LAPF Input 70 0 1 0 0.00% 0.00% 0.00% 0 LAPF Output-I 71 4 1 4000 0.00% 0.00% 0.00% 0 LAPF timer-AckThe IS-IS adjacency process is responsible for sending and receiving hello messages, managing the adjacency database, and DIS election. The DIS is responsible for creating the pseodonode on a LAN. The CPU utilization for this process should be less than one percent.
The IS-IS update process does SPF computation and flooding. The CPU utilization for this process should fluctuate and can get high, but you should not be concerned unless this process is constantly greater than 20 percent. Enabling Distributed Cisco Express Forwarding (CEF) switching should bring down the CPU utilization of this process.
CLNS input is the process that handles CLNS packets processed on the router interfaces.