05-23-2008 03:45 AM - edited 03-03-2019 10:04 PM
Hi Experts,
I have a Cisco 3560 running IOS 12.2 SE(35). I have just installed it. No traffic on it. But the CPU on it is always high - 25 - 35 %.
Hulc LED Process - what is this please ?
sh proc cpu sor
CPU utilization for five seconds: 22%/0%; one minute: 22%; five minutes: 24%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
110 313910 37700 8326 15.97% 15.87% 15.70% 0 Hulc LED Process
81 11040 1872 5897 0.63% 0.57% 0.57% 0 hpm counter proc
166 2825 16926 166 0.31% 0.28% 0.21% 0 Spanning Tree
118 7126 395 18040 0.31% 0.33% 0.32% 0 HQM Stack Proces
130 2734 1871 1461 0.15% 0.14% 0.15% 0 PI MATM Aging Pr
35 663 386 1717 0.15% 0.02% 0.01% 0 Compute load avg
I would really appreciate any quick responses.
many thanks
arav
05-23-2008 07:44 AM
Hi Arav,
I'm not suure that it is what you are looking for:
CSCsi78581 (Catalyst 3750 switches)
When you enter the show process cpu privileged EXEC command on a Catalyst 3750 model WS-C3750G-48PS, the LED process no longer causes high CPU usage.
But it seems it is an IOS bug which resolved in 12.2(44)SE release.
Hope it helps, rate if does,
Krisztian
05-23-2008 08:04 AM
Hi Krisztian,
Thank you for your reply.
Would you know if this will cause the CPU to max out when there is actual user traffic on the switch ? It is set to go live tomorrow !!
Cheers
arav
05-23-2008 08:09 AM
Hi Arav,
Actually that is the only thing I found about this issue so I don't know how it will impact the switch performance in production, but if you try to upgrade the IOS you will see.
Hope this helps, rate if does,
Krisztian
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