CPU Utilization on Router is showing very high, using "show task
accounting" command, how to find which process are causing high
utilization.
RouterA> show chassis sfm
Temp CPU Utilization (%) Memory Utilization (%)
Slot State (C) Total Interrupt DRAM (MB) Heap Buffer
0 Online 41 81 2 64 23 55
1 Online - Standby 45 75 0 64 22 47
RouterA> show chassis routing-engine
Routing Engine status:
Slot 0:
Current state Master
Election priority Master
Temperature 59 degrees C / 138 degrees F
DRAM 2048 MB
Memory utilization 14 percent
CPU utilization:
User 12 percent
Background 0 percent
Kernel 27 percent
Interrupt 26 percent
Idle 35 percent
Model RE-3.0
Serial ID P10865701798
Start time 2003-08-28 00:26:23 IST
Uptime 187 days, 12 hours, 43 minutes, 34
seconds
Load averages: 1 minute 5 minute 15 minute
0.73 0.92 0.96
Routing Engine status:
Slot 1:
Current state Backup
Election priority Backup
Temperature 35 degrees C / 95 degrees F
DRAM 2048 MB
Memory utilization 10 percent
CPU utilization:
User 0 percent
Background 0 percent
Kernel 0 percent
Interrupt 0 percent
Idle 100 percent
Model RE-3.0
Serial ID P10865700570
Start time 2003-08-28 08:03:04 IST
Uptime 187 days, 4 hours, 46 minutes, 29
seconds
RouterA>show task accounting
Task accounting is enabled.
Task Started User Time System Time Longest Run
Scheduler 3839795 37.160 1:21.856 0.000
LMP Client 40 0.000 0.000 0.000
IF 42 0.000 0.000 0.000
INET6 20 0.000 0.000 0.000
INET 20 0.000 0.000 0.000
ISO 20 0.000 0.000 0.000
Memory 27 0.000 0.001 0.000
RPD Server.0.0.0.0+666 22 0.000 0.000 0.000
RT 578 0.024 0.035 0.002
RouterDiscoveryServer 20 0.000 0.000 0.000
ICMP 102 0.001 0.002 0.000
Router-Advertisement 40 0.000 0.000 0.000
MLD 40 0.000 0.000 0.000
IGMP 297 0.006 0.016 0.000
PIM Recv 20299 1.948 3.925 0.003
OSPFv2 I/O./var/run/ppmd_ 9886 0.108 0.215 0.000
LDP Conn.97.251.242.24+11 541 0.009 0.019 0.000
LDP Conn.97.251.242.23+11 545 0.008 0.020 0.000
LDP Conn.97.251.242.15+38 495 0.007 0.019 0.000
LDP Conn.97.251.242.13+29 495 0.009 0.017 0.000
LDP Conn.97.251.242.17+26 495 0.008 0.018 0.000
LDP Conn.97.251.242.16+24 495 0.007 0.018 0.000
LDP Conn.97.251.242.14+44 495 0.008 0.017 0.000
AA-WW 4287 0.216 0.416 0.000
PIM.BB 3697 0.244 0.455 0.003
PIM.master 3309 0.256 0.296 0.002
LDP Conn.97.251.242.12+40 495 0.007 0.018 0.000
LDP Conn.97.251.242.18+28 495 0.008 0.017 0.000
LDP Conn.97.251.242.11+28 495 0.009 0.020 0.000
LDP Conn.97.251.224.72+64 495 0.009 0.021 0.000
LDP Conn.97.251.224.70+64 495 0.012 0.023 0.000
BGP RT Background 138 0.000 0.001 0.000
BGP.0.0.0.0+179 24 0.000 0.000 0.000
LDP I/O.0.0.0.0+646 4492 0.112 0.246 0.000
LDP 6826 0.156 0.317 0.002
AA-OSPF 8550 0.135 0.257 0.003
OSPF 10403 0.180 0.324 0.007
BGP_18101.97.251.224.14+1 6289 0.248 0.470 0.000
BGP_18101.97.251.224.70+2 6823 0.271 0.509 0.001
TED 20 0.000 0.000 0.000
MPLS 20 0.000 0.000 0.000
Resolve inet.3 2 0.017 0.000 0.009
KRT Resolve/IPv4 23 0.001 0.003 0.000
KStat 3586997 1:22.217 2:54.571 0.001
KRT Request 23 0.000 0.000 0.000
KRT Ifstate 12 0.000 0.000 0.000
KRT 159895 8.683 17.379 0.009
Redirect 29 0.000 0.000 0.000
MGMT_Listen./var/run/rpd_ 21 0.001 0.002 0.000
SNMP Subagent./var/run/rp 261 0.012 0.025 0.002
RouterA> show task accounting detail
Task accounting is enabled.
Task Started User Time System Time Longest Run
Scheduler 3623296 35.007 1:17.296 0.000
LMP Client 40 0.000 0.000 0.000
Changes 40 0.000 0.000 0.000
IF 42 0.000 0.000
0.000
Changes 42 0.000 0.000 0.000
INET6 20 0.000 0.000 0.000
Changes 20 0.000 0.000 0.000
INET 20 0.000 0.000
0.000
Changes 20 0.000 0.000 0.000
ISO 20 0.000 0.000
0.000
Changes 20 0.000 0.000 0.000
Memory 26 0.000 0.001 0.000
Timers 26 0.000 0.001 0.000
RPD Server.0.0.0.0+666 22 0.000 0.000 0.000
Changes 22 0.000 0.000 0.000
RT 522 0.022 0.032
0.002
Changes 20 0.000 0.000 0.000
Jobs 502 0.022 0.032
0.002
RouterDiscoveryServer 20 0.000 0.000 0.000
Changes 20 0.000 0.000 0.000
ICMP 102 0.001 0.002 0.000
I/O 82 0.001 0.002 0.000
Changes 20 0.000 0.000 0.000
Router-Advertisement 40 0.000 0.000 0.000
Changes 40 0.000 0.000 0.000
MLD 40 0.000 0.000 0.000
Changes 40 0.000 0.000 0.000
IGMP 279 0.006 0.014 0.000
I/O 226 0.005 0.013 0.000
Changes 40 0.000 0.000 0.000
Timers 13 0.000 0.000 0.000
PIM Recv 19220 1.839 3.719 0.003
I/O 19220 1.839 3.719 0.003
OSPFv2 I/O./var/run/ppmd_ 9294 0.102 0.203 0.000
I/O 9254 0.101 0.203 0.000
Changes 40 0.000 0.000 0.000
LDP Conn.97.251.242.24+11 512 0.008 0.018 0.000
I/O 178 0.001 0.003 0.000
Jobs 334 0.007 0.014 0.000
LDP Conn.97.251.242.23+11 516 0.008 0.018 0.000
I/O 180 0.001 0.003 0.000
Jobs 336 0.007 0.015 0.000
LDP Conn.97.251.242.15+38 468 0.007 0.018 0.000
I/O 156 0.001 0.003 0.000
Jobs 312 0.006 0.014 0.000
LDP Conn.97.251.242.13+29 468 0.008 0.016 0.000
I/O 156 0.001 0.002 0.000
Jobs 312 0.006 0.013 0.000
LDP Conn.97.251.242.17+26 468 0.008 0.016 0.000
I/O 156 0.001 0.003 0.000
Jobs 312 0.006 0.013 0.000
LDP Conn.97.251.242.16+24 468 0.007 0.017 0.000
I/O 156 0.001 0.003 0.000
Jobs 312 0.006 0.014 0.000
LDP Conn.97.251.242.14+44 468 0.007 0.015 0.000
I/O 156 0.001 0.002 0.000
Jobs 312 0.006 0.013 0.000
PIM.AA 4055 0.205 0.392 0.000
Changes 42 0.000 0.000 0.000
Jobs 2533 0.173 0.323 0.000
Timers 1480 0.031 0.068 0.000
PIM.BB 3489 0.224 0.427 0.003
Changes 42 0.000 0.000 0.000
Jobs 425 0.090 0.101 0.001
Timers 3022 0.134 0.325 0.003
PIM.master 3126 0.241 0.283 0.002
Changes 42 0.000 0.000 0.000
Jobs 358 0.189 0.179 0.002
Timers 2726 0.051 0.103 0.000
LDP Conn.97.251.242.12+40 468 0.007 0.017 0.000
I/O 156 0.001 0.003 0.000
Jobs 312 0.006 0.014 0.000
LDP Conn.97.251.242.18+28 468 0.007 0.016 0.000
I/O 156 0.001 0.003 0.000
Jobs 312 0.006 0.013 0.000
LDP Conn.97.251.242.11+28 468 0.008 0.018 0.000
I/O 156 0.001 0.003 0.000
Jobs 312 0.007 0.015 0.000
LDP Conn.97.251.224.72+64 468 0.008 0.020 0.000
I/O 156 0.001 0.003 0.000
Jobs 312 0.007 0.016 0.000
LDP Conn.97.251.224.70+64 468 0.011 0.022 0.000
I/O 156 0.001 0.003 0.000
Jobs 312 0.010 0.018 0.000
BGP RT Background 130 0.000 0.001 0.000
Timers 130 0.000 0.001 0.000
BGP.0.0.0.0+179 24 0.000 0.000 0.000
Changes 20 0.000 0.000 0.000
Jobs 4 0.000 0.000 0.000
LDP I/O.0.0.0.0+646 4249 0.106 0.234 0.000
I/O 4229 0.106 0.233 0.000
Changes 20 0.000 0.000 0.000
LDP 6448 0.148 0.299 0.002
Jobs 2 0.000 0.000 0.000
Timers 6446 0.147 0.299 0.002
AA-OSPF 8080 0.126 0.237 0.003
Jobs 2113 0.049 0.082 0.003
Timers 5967 0.076 0.155 0.000
OSPF 9760 0.172 0.307 0.007
Jobs 2335 0.084 0.109 0.007
Timers 7425 0.087 0.197 0.001
BGP_18101.97.251.224.14+1 6016 0.237 0.450 0.000
I/O 2981 0.027 0.057 0.000
Jobs 2981 0.208 0.389 0.000
Timers 54 0.001 0.003 0.000
BGP_18101.97.251.224.70+2 6534 0.261 0.486 0.001
I/O 3240 0.028 0.058 0.000
Jobs 3240 0.232 0.426 0.001
Timers 54 0.000 0.001 0.000
TED 20 0.000 0.000 0.000
Changes 20 0.000 0.000 0.000
MPLS 20 0.000 0.000 0.000
Changes 20 0.000 0.000 0.000
Resolve inet.3 2 0.017 0.000 0.009
Jobs 2 0.017 0.000 0.009
KRT Resolve/IPv4 23 0.001 0.003 0.000
I/O 23 0.001 0.003 0.000
KStat 3384571 1:17.467 2:44.885 0.001
I/O 2807075 28.082 1:00.802 0.000
Jobs 577496 49.384 1:44.083 0.001
KRT Request 22 0.000 0.000 0.000
Jobs 22 0.000 0.000 0.000
KRT Ifstate 12 0.000 0.000 0.000
I/O 12 0.000 0.000 0.000
KRT 150828 8.181 16.411 0.009
Changes 20 0.000 0.000 0.000
Jobs 150782 8.181 16.411 0.009
Timers 26 0.000 0.000 0.000
Redirect 29 0.000 0.000 0.000
Changes 20 0.000 0.000 0.000
Timers 9 0.000 0.000 0.000
MGMT_Listen./var/run/rpd_ 20 0.001 0.002 0.000
I/O 20 0.001 0.002 0.000
SNMP Subagent./var/run/rp 261 0.012 0.025 0.002
I/O 252 0.007 0.011 0.000
Timers 9 0.004 0.013 0.002