Re: Re: OT:Why so high CPU utilization

From: Chuck Church (cchurch@xxxxxxxxxxxxx)
Date: Fri Dec 28 2001 - 02:36:40 GMT-3


   
Dreams Ruan,

    Practically all your CPU usage is due to interrupts. Send us your
config and a 'sh int switching'.

Chuck

----- Original Message -----
From: "Dreams Ruan" <dreams_r@163.com>
To: <ccielab@groupstudy.com>
Cc: <ccielab@groupstudy.com>
Sent: Tuesday, December 25, 2001 9:15 PM
Subject: Re: Re: OT:Why so high CPU utilization

> Jay Hennigan:
>
> In my router's interface,no any policy-route ,and switching type
> is CEF.But the line use FR encapsulation,so I check the show process
> CPU,the FR Broadcast Out and the Framer background use most cpu cycle,
> the content like that:
>
> sh proc cpu
> CPU utilization for five seconds: 30/30; one minute: 39; five minutes: 31
> PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
> 1 8084 82232 98 0.00 0.00 0.00 0 Load Meter
> 2 20 30 666 0.08 0.01 0.00 2 Virtual Exec
> 3 557900 61402 9086 0.00 0.11 0.06 0 Check heaps
> 4 0 1 0 0.00 0.00 0.00 0 Chunk Manager
> 5 432 269 1605 0.00 0.00 0.00 0 Pool Manager
> 6 0 2 0 0.00 0.00 0.00 0 Timers
> 7 644 82183 7 0.00 0.00 0.00 0
ALARM_TRIGGER_SC
> 8 0 35 0 0.00 0.00 0.00 0 Serial
Backgroun
> 9 0 1 0 0.00 0.00 0.00 0 RM PROCESS
> 10 0 1 0 0.00 0.00 0.00 0 RM PROCESS
> 11 0 1 0 0.00 0.00 0.00 0 RM PROCESS
> 12 0 1 0 0.00 0.00 0.00 0 RM PROCESS
> 13 0 2 0 0.00 0.00 0.00 0 CAS Process
> 14 10496 27927 375 0.00 0.00 0.00 0 ARP Input
> 15 652 20557 31 0.00 0.00 0.00 0 HC Counter
Timer
> 16 0 4 0 0.00 0.00 0.00 0 DDR Timers
> 17 0 2 0 0.00 0.00 0.00 0 Dialer event
> 18 20 4 5000 0.00 0.00 0.00 0 Entity MIB API
> 19 0 1 0 0.00 0.00 0.00 0 SERIAL
A'detect
> 20 0 1 0 0.00 0.00 0.00 0 Critical Bkgnd
> 21 216096 73238 2950 0.00 0.03 0.02 0 Net Background
> 22 0 64 0 0.00 0.00 0.00 0 Logger
> 23 1292 411025 3 0.00 0.00 0.00 0 TTY Background
> 24 2200 411045 5 0.00 0.00 0.00 0 Per-Second
Jobs
> 25 0 19583 0 0.00 0.00 0.00 0 CSM periodical
p
> 26 40 215393 0 0.00 0.00 0.00 0 CSM timer
proces
> 27 0 2 0 0.00 0.00 0.00 0 CSM Tone
process
> 28 0 2 0 0.00 0.00 0.00 0 Call
Management
> 29 1016 11585 87 0.00 0.00 0.00 0 Net Input
> 30 19892 82232 241 0.00 0.00 0.00 0 Compute load
avg
> 31 198360 7141 27777 0.00 0.03 0.00 0 Per-minute
Jobs
> 32 0 1 0 0.00 0.00 0.00 0 COT Timer
proces
> 33 0 1 0 0.00 0.00 0.00 0 COT Queue
proces
> 34 748 1631492 0 0.00 0.00 0.00 0 Framer
backgroun
> 35 0 3 0 0.00 0.00 0.00 0 Neat msg
> 36 16 4 4000 0.00 0.00 0.00 0 ISDN
> 37 0 2 0 0.00 0.00 0.00 0 AAA Dictionary
R
> 38 42392 87732 483 0.00 0.01 0.00 0 IP Input
> 39 9352 53989 173 0.00 0.00 0.00 0 CDP Protocol
> 40 0 1 0 0.00 0.00 0.00 0 X.25 Encaps
Mana
> 41 0 1 0 0.00 0.00 0.00 0 PPP IP Add
Route
> 42 5292 6992 756 0.00 0.00 0.00 0 IP Background
> 43 1168 6859 170 0.00 0.00 0.00 0 Adj Manager
> 44 8 1373 5 0.00 0.00 0.00 0 TCP Timer
> PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
> 45 88 89 988 0.00 0.00 0.00 0 TCP Protocols
> 46 0 1 0 0.00 0.00 0.00 0 Probe Input
> 47 0 1 0 0.00 0.00 0.00 0 RARP Input
> 48 0 1 0 0.00 0.00 0.00 0 HTTP Timer
> 49 0 1 0 0.00 0.00 0.00 0 Socket Timers
> 50 9692 11078 874 0.00 0.00 0.00 0 DHCPD Receive
> 51 1284 6851 187 0.00 0.00 0.00 0 IP Cache Ager
> 52 0 1 0 0.00 0.00 0.00 0 COPS
> 53 0 1 0 0.00 0.00 0.00 0 PAD InCall
> 54 0 2 0 0.00 0.00 0.00 0 X.25
Background
> 55 1488 411033 3 0.00 0.00 0.00 0 RUDPV1 Main
Proc
> 56 0 1 0 0.00 0.00 0.00 0 bsm_timers
> 57 608 411032 1 0.00 0.00 0.00 0 bsm_xmt_proc
> 58 4 2 2000 0.00 0.00 0.00 0 RLM groups
Proce
> 59 9988 81987 121 0.00 0.00 0.00 0 FR LMI
> 60 1064 4108553 0 0.00 0.00 0.00 0 FR Broadcast
Out
> 61 180 1631572 0 0.00 0.00 0.00 0 VFC File
System
> 62 0 1 0 0.00 0.00 0.00 0 Router
Autoconf
> 63 0 1 0 0.00 0.00 0.00 0 TSP
> 64 4 1 4000 0.00 0.00 0.00 0
QOS_MODULE_MAIN
> 65 64 63 1015 0.00 0.00 0.00 0 DSPRM
> 66 0 2 0 0.00 0.00 0.00 0 VFC Manager
> 67 0 2 0 0.00 0.00 0.00 0 Background
Loade
> 68 0 1 0 0.00 0.00 0.00 0 sssapp
> 69 0 2 0 0.00 0.00 0.00 0 RTSP_CLIENT
> 70 0 1 0 0.00 0.00 0.00 0 RTSP_DNS
> 71 648 6832 94 0.00 0.00 0.00 0 FR ARP
> 72 0 1 0 0.00 0.00 0.00 0 faxmsp
> 73 0 1 0 0.00 0.00 0.00 0 DocMSP
> 74 0 1 0 0.00 0.00 0.00 0 Syslog Traps
> 75 356 41112 8 0.00 0.00 0.00 0 RMON Recycle
Pro
> 76 4 2 2000 0.00 0.00 0.00 0 RMON Deferred
Se
> 77 0 1 0 0.00 0.00 0.00 0 RMON Packets
> 78 0 2 0 0.00 0.00 0.00 0 ISDN Timer
> 79 0 1 0 0.00 0.00 0.00 0 ISDNMIB
Backgrou
> 80 0 1 0 0.00 0.00 0.00 0 CallMIB
Backgrou
> 81 4 1 4000 0.00 0.00 0.00 0 ISDN From
Driver
> 82 4 64 62 0.00 0.00 0.00 0 Resource
Monitor
> 83 0 2 0 0.00 0.00 0.00 0 CC-API_VCM
> 84 12 4 3000 0.00 0.00 0.00 0 Session
Applicat
> 85 16 2 8000 0.00 0.00 0.00 0 VTSP
> 86 0 2 0 0.00 0.00 0.00 0 VOIP_RTCP
> 87 0 2 0 0.00 0.00 0.00 0 Voice Player
> 88 0 1 0 0.00 0.00 0.00 0 Media Content
Re
> 89 4 1 4000 0.00 0.00 0.00 0 pcapp
> 90 0 1 0 0.00 0.00 0.00 0 placecall
> PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
> 91 0 2 0 0.00 0.00 0.00 0 tcl ivr app
> 92 0 2 0 0.00 0.00 0.00 0 tcl ivr app
> 93 0 2 0 0.00 0.00 0.00 0 tcl ivr app
> 94 0 2 0 0.00 0.00 0.00 0 tcl ivr app
> 95 0 2 0 0.00 0.00 0.00 0 tcl ivr app
> 96 0 2 0 0.00 0.00 0.00 0 tcl ivr app
> 97 0 2 0 0.00 0.00 0.00 0 tcl ivr app
> 98 0 2 0 0.00 0.00 0.00 0 tcl ivr app
> 99 0 1 0 0.00 0.00 0.00 0 lib_off_app
> 100 8 2 4000 0.00 0.00 0.00 0 CCH323_CT
> 101 0 2 0 0.00 0.00 0.00 0 CCH323_RTCP
> 102 0 1 0 0.00 0.00 0.00 0 CCH323_DNS
> 103 4 2 2000 0.00 0.00 0.00 0
CCSIP_SPI_CONTRO
> 104 0 1 0 0.00 0.00 0.00 0 CCSIP_DNS
> 105 4 1 4000 0.00 0.00 0.00 0
CCSIP_UDP_SOCKET
> 106 0 1 0 0.00 0.00 0.00 0
CCSIP_TCP_SOCKET
> 107 4 2 2000 0.00 0.00 0.00 0 RTPSPI
> 108 0 1 0 0.00 0.00 0.00 0 ISDN L2
Process
> 109 0 1 0 0.00 0.00 0.00 0 ISDN L3 Timer
Pr
> 110 0 1 0 0.00 0.00 0.00 0 ISDN L2D SRQ
Pro
> 111 0 3 0 0.00 0.00 0.00 0 AAA Accounting
> 112 4 3427 1 0.00 0.00 0.00 0 DHCPD Timer
> 113 1704 116452 14 0.00 0.00 0.00 0 DHCPD Database
> 114 0 1 0 0.00 0.00 0.00 0 Fax Receive
> 115 0 1 0 0.00 0.00 0.00 0 Fax Transmit
> 116 0 1 0 0.00 0.00 0.00 0 Tiff Writer
> 117 0 217 0 0.00 0.00 0.00 0 fax timers
> 118 776 822027 0 0.00 0.00 0.00 0 esmtp client
soc
> 119 0 2 0 0.00 0.00 0.00 0 esmtp server
soc
> 120 0 1 0 0.00 0.00 0.00 0 faxmail-client
> 121 4 20550 0 0.00 0.00 0.00 0 FR TUNNEL
> 122 0 1 0 0.00 0.00 0.00 0 FRF9 manager
> 123 0 1 0 0.00 0.00 0.00 0 FRF9 timed
event
> 124 36 806 44 0.00 0.00 0.00 0 CEF process
> 125 4 18 222 0.00 0.00 0.00 0 CEF
Scanner!!!!
>
> I don't know how to solve.
>
> =======
>
> >On Tue, 25 Dec 2001, Dreams Ruan wrote:
> >
> >> Hello,Everyone:
> >>
> >> I have a question about router's cpu utilization.My company's router
> >> is 2621,used a FE and a Serial port.The data flow about 1.1M/s per
port,
> >> and the packet flow about 2800 packets/s per port,but the router's cpu
> >> utilization is 95!!! I changed a router from 2621 to AS5300,the
AS5300's
> >> cpu utilization is 23-35.The data flow not so high,but Why so high cpu
> >> utilization? The router used static route,no others protocol.
> >
> >Do you have "no ip route-cache" in your config on either interface?
> >
> >Any debugging turned on?
> >
> >Try "show interface switching" and see if the majority of your traffic
> >is being process-switched for any reason.
> >
> >"Show process cpu" will give an indication as to what is going on as
well.
> >
> >--
> >Jay Hennigan - CCIE #7880 - Network Administration - jay@west.net
> >NetLojix Communications, Inc. - http://www.netlojix.com/
> >WestNet: Connecting you to the planet. 805 884-6323
>
> = = = = = = = = = = = = = = = = = = = =
>
>
> VB
> @q#!
>
> Dreams Ruan
> dreams_r@163.com
> 2001-12-26



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