08-24-2007 05:47 PM - edited 03-03-2019 06:27 PM
Hi,
There is a tools "Output interpreter" tools can display the potential issue but it is for "register customer" only. The link is following:
javascript:openChildWindow('https://www.cisco.com/cgi-bin/Support/OutputInterpreter/home.pl?style=small&ref_url=http://www.cisco.com/en/US/products/hw/routers/ps133/products_tech_note09186a00800a70f2.shtml','oi')
Could someone help me to put it and find any potential issue?
Currently, we had two routers, one is in HK and another is in US. We find that the cpu loading in US is below 10%; the CPU loading in HK is over 30%. How do we trace the issue? both of them config are 80% similar. Could you guide me how to locate the issue. thanks
Best regards
08-24-2007 06:29 PM
SHOW MEMORY NOTIFICATIONS (if any)
INFO: Processor memory utilization is 20.29747%.
INFO: Processor memory or main memory stores the running configuration and routing
tables. The Cisco IOS software executes from main memory.
INFO: The amount of processor memory required by the router is affected by the Cisco
IOS version used, the size of the network and by the access list configurations.
Ensure that an optimal IOS version has been chosen.
INFO: The smallest amount of free processor memory used since the last boot is 95583396
byte(s).
INFO: The size of largest amount of processor memory free block currently available
is 79198900 byte(s).
INFO: For detailed memory analysis with respect to specific processes, consider
pasting "show processes memory" output to Output Interpreter.
INFO: If you are trying to determine the amount of installed memory on your device,
paste the output of "show version" to Output Interpreter.
REFERENCE: For more information see Troubleshooting Memory Problems
Back to top
SHOW PROCESS CPU NOTIFICATIONS (if any)
INFO: Total CPU Utilization is comprised of process and interrupt percentages.
Total CPU Utilization: 28%
Process Utilization: 1%
Interrupt Utilization: 27%
These values are found on the first line of the output:
CPU utilization for five seconds: x%/y%; one minute: a%; five minutes: b%
Total CPU Utilization: x%
Process Utilization: (x - y)%
Interrupt Utilization: y%
Process Utilization is the difference between the Total and Interrupt (x and y).
The one and five minute utilizations are exponentially decayed averages (rather
than an arithmetic average), therefore recent values have more influence on the
calculated average.
INFO: Total CPU Utilization is 28% for the past 5 seconds.
INFO: Total CPU Utilization is 27% for the past 5 minutes.
NOTE: This is an exponentially decayed average rather than an arithmetic average,
therefore recent events have a greater effect than past events.
Compare this CPU value to the baseline or average utilization. If a baseline is
not available, create one by collecting 'show process cpu' outputs during the course
of several days. If available, use the 'show process cpu history' command (available
in IOS 12.2 and higher).
The following processes are causing excessive CPU usage:
PID CPU Time Process
ERROR: No Processes were found having a CPU utilization greater than 10%
NOTE: If there are processes with a utilization greater than 10%, ensure that
there is no line wrapping as this will interfere with the analysis.
REFERENCE: For troubleshooting information, please visit Troubleshooting High
CPU Utilization on Cisco Routers
REFERENCE: For more information, see
High CPU Utilization on Catalyst 2900XL/3500XL Switches
Troubleshooting High CPU Utilization due to Processes
08-24-2007 06:33 PM
Can we see the router config along with the show ver ?
08-24-2007 07:20 PM
Hi,
yes, of course. I cannot find your personal email from the "top netpros". Could you give me your email address so that we can send it to you separately. Thanks for your great help.
Best regards
08-24-2007 07:19 PM
It's possible the difference in load you're seeing is normal for some of the following reasons:
Are the routers you're comparing identical models? (Different models even in the same series, often vary in the performance. I.e. same work on one router might show 30% load but on a faster router, 10%.)
Are the routers you're comparing running the same traffic load? (Often the primary driver of CPU when you see "interrupt" % nearly the same as the overall load.)
You note the configs are 80% similar, but certain config features can impact overall load. (E.g., differences such as ACL usage, fancy queuing, CEF, etc.)
The information Edison asked for would help with the models (sh ver) and features in use (sh conf), but it might also be helpful if you can also post the stats from all active interfaces while the routers are normally busy.
08-24-2007 07:54 PM
Hi,
some question regarding the outpout
---
Total CPU Utilization: x%
Process Utilization: (x - y)%
Interrupt Utilization: y%
---
"Total CPU Utilization" is overall cpu loading, including everything.
"Process Utilization", no any idea, is it ad ho task / job?
"Interrupt Utilization", no any idea
could you have an example for it?
---
Process Utilization is the difference between the Total and Interrupt (x and y).
The one and five minute utilizations are exponentially decayed averages (rather
than an arithmetic average), therefore recent values have more influence on the
calculated average.
----
what does it want to say? is the route normal
or is loading normal?
It would be grateful that you give me the email., we can send you two routers config. R1 is in hk, cpu loading is 30%, R2 is in US, cpu loading is 6%. we compare the config, IOS, model,...etc. the major different is that R1 is 256M and R2 is 512M. Does it cause the CPU loading different? pls advice
Thanks
Best regards
08-24-2007 08:00 PM
Hi,
following is the sh ver info. Sorry, they have the same mem size, 256M.
---
--R1 (HK) sh ver ---
Cisco IOS Software, 7301 Software (C7301-JK9S-M), Version 12.4(12), RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Fri 17-Nov-06 18:58 by prod_rel_team
ROM: System Bootstrap, Version 12.3(4r)T4, RELEASE SOFTWARE (fc1)
BOOTLDR: Cisco IOS Software, 7301 Software (C7301-BOOT-M), Version 12.4(5a), RELEASE SOFTWARE (fc3)
hkco7301-01 uptime is 15 weeks, 3 days, 8 hours, 16 minutes
System returned to ROM by power-on
System restarted at 03:39:52 HK Wed May 9 2007
System image file is "disk0:c7301-jk9s-mz.124-12.bin"
This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.
A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html
If you require further assistance please contact us by sending email to
Cisco 7301 (NPE) processor (revision E) with 229376K/32768K bytes of memory.
Processor board ID 74835553
SB-1 CPU at 700MHz, Implementation 1025, Rev 0.2, 512KB L2 Cache
1 slot midplane, Version 2.0
Last reset from power-on
3 Gigabit Ethernet interfaces
1 Serial interface
509K bytes of NVRAM.
62720K bytes of ATA PCMCIA card at slot 0 (Sector size 512 bytes).
32768K bytes of Flash internal SIMM (Sector size 256K).
Configuration register is 0x2102
--R2 (US) sh ver---
Cisco IOS Software, 7301 Software (C7301-JK9S-M), Version 12.4(12), RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Fri 17-Nov-06 18:58 by prod_rel_team
ROM: System Bootstrap, Version 12.3(4r)T4, RELEASE SOFTWARE (fc1)
BOOTLDR: Cisco IOS Software, 7301 Software (C7301-BOOT-M), Version 12.4(5a), RELEASE SOFTWARE (fc3)
hkco7301-01 uptime is 15 weeks, 3 days, 8 hours, 17 minutes
System returned to ROM by power-on
System restarted at 03:39:52 HK Wed May 9 2007
System image file is "disk0:c7301-jk9s-mz.124-12.bin"
This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.
A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html
If you require further assistance please contact us by sending email to
Cisco 7301 (NPE) processor (revision E) with 229376K/32768K bytes of memory.
Processor board ID 74835553
SB-1 CPU at 700MHz, Implementation 1025, Rev 0.2, 512KB L2 Cache
1 slot midplane, Version 2.0
Last reset from power-on
3 Gigabit Ethernet interfaces
1 Serial interface
509K bytes of NVRAM.
62720K bytes of ATA PCMCIA card at slot 0 (Sector size 512 bytes).
32768K bytes of Flash internal SIMM (Sector size 256K).
Configuration register is 0x2102
08-24-2007 08:09 PM
Hi,
can we find the cpu loading distribution? if no, how do we trace which processes consume the cpu loading?
Best regards
08-24-2007 09:05 PM
For your 3 prior posts:
"could you have an example for it? "
From your sample:
CPU utilization for five seconds: 28%/27%; one minute: 28%; five minutes: 27%
The first % and first 28% (from 28%/27%) is overall CPU load = everything the CPU is doing.
The next % and first 27% (from 28%/27%) is interrupt CPU load = CPU managing the hardware while forwarding packets.
You can not get an additional breakdown (that I'm aware of).
The difference, 1% (28 - 27) is CPU load from software processes. The sum of the 5Sec column, approximately
.96% from your sample or approximately 1%
"is the route normal or is loading normal? "
Insufficient information, but interrupt % in your sample being near total % is usually good.
"It would be grateful that you give me the email"
You may use email address attached to my profile.
Need sh ver, sh conf, and sh int of all active interfaces (when routers busy)
The two sh vers you provided appear from the same router, hkco7301-01?
"can we find the cpu loading distribution?"
Except for software process, believe you can not.
"if no, how do we trace which processes consume the cpu loading?"
You can not, again except for software process (also again, not that I'm aware of)
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