09-12-2011 07:33 AM
Hi.
I have weird issues with my m9100 MDS's cpu. After CISCOWorks complains that thoses equipement were peaking at 100% every minutes or so, I went on the equipements and try'd a few "show system ressources". Here is the result (remark the cpu states in bold);
FC-BLAMTL04-1# show system resources
Load average: 1 minute: 0.02 5 minutes: 0.14 15 minutes: 0.16
Processes : 182 total, 1 running
CPU states : 25.0% user, 75.0% kernel, 0.0% idle
Memory usage: 516136K total, 450816K used, 65320K free
6340K buffers, 247552K cache
FC-BLAMTL04-1# show system resources
Load average: 1 minute: 0.02 5 minutes: 0.13 15 minutes: 0.16
Processes : 182 total, 1 running
CPU states : 50.0% user, 50.0% kernel, 0.0% idle
Memory usage: 516136K total, 450816K used, 65320K free
6340K buffers, 247552K cache
FC-BLAMTL04-1# show system resources
Load average: 1 minute: 0.02 5 minutes: 0.13 15 minutes: 0.16
Processes : 182 total, 1 running
CPU states : 340282346638528859811704183484516925440.0% user, 340282346638528859811704183484516925440.0% kernel, 340282346638528859811704183484516925440.0% idle
Memory usage: 516136K total, 450624K used, 65512K free
6340K buffers, 247552K cache
FC-BLAMTL04-1# show system resources
Load average: 1 minute: 0.02 5 minutes: 0.13 15 minutes: 0.16
Processes : 182 total, 1 running
CPU states : 340282346638528859811704183484516925440.0% user, 340282346638528859811704183484516925440.0% kernel, 340282346638528859811704183484516925440.0% idle
Memory usage: 516136K total, 450624K used, 65512K free
6340K buffers, 247552K cache
FC-BLAMTL04-1# show system resources
Load average: 1 minute: 0.01 5 minutes: 0.12 15 minutes: 0.16
Processes : 182 total, 1 running
CPU states : 33.3% user, 66.7% kernel, 0.0% idle
Memory usage: 516136K total, 450816K used, 65320K free
6340K buffers, 247552K cache
It appear, sometime, for an unknown reason, CPU peaks to a weird % number (I thought a % couldn't get higher than 100).
Also, trying a "show process" (to get the running processes) command dosen't work. I am only able to "show processes"
Did someone experience same kind of discrepencies? I am running m9100-s2ek9-mz.4.1.1b.bin image.
Thank you.
09-22-2011 04:50 AM
Seen a lot of incorrect CPU utilization values due to bug CSCte81951. Note the new spelling of the command to see the cpu history etc.
From bug info:
"show system resources" shows high cpu usage even when there is not much activity on the switch.
In the specific case reported the cpu util (user+kernel) was always 100%.
No workarounds. Use "show processes cpu history" or "show processes cpu" for
cpu util. Fixed in 4.2(4) and 5.0(1a).
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