03-09-2009 09:01 PM - edited 03-06-2019 04:29 AM
Hi All,..
I saw in my switch there is a hig processor CPU in PID 110, could you please advice me what it is? and how to solve this?
Device type : WS-C3560G-48PS
-----------------------------------------
Switch#sh proc cpu sor
CPU utilization for five seconds: 23%/0%; one minute: 22%; five minutes: 21%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
110 11990607 1436516 8347 15.97% 15.83% 15.84% 0 Hulc LED Process
-----------------------------------------
Thanks
03-10-2009 09:24 PM
Hulc LED Process is a process responsible for link status detection.
If there is SFP port in use, it might be a little bit high.
You can check if you hit the following bug.
CSCsi78581 Hulc LED Process uses 10-15% CPU on Catalyst 3750/3560.
06-17-2009 02:58 AM
Hi,
We have a similar problem on a 2960 with SFP ports.
Is this bug only related to 3750/3560 or also to 2960 ? I can't find a bug on the bug toolkit...
Our CPU is running around 25 - 30 % so we would like to decrease it if possible.
Do you know a workaround ?
gr
06-17-2009 08:16 AM
That bug is not related to 2960.
I tested 2960 in the lab. If it is 2960 with PoE, Hulc LED process will use about 15% CPU.
In general, it is normal for 2960 to have cpu usage around 15-40%.
If you don't have any performance issue, you can ignore this.
02-12-2010 01:00 PM
CSCsi78581 lists this fixed in in 12.2(44)SE only, when it will be fixed in other newer versions ?
I have it on 48 ports 2960 thta can ony run 12.2(50) and higher.
02-22-2010 12:44 AM
On one of the 2960-48 that suffer this, I've loaded for a try 12.2(52)SE
Hulc LED remained the same, but general CPU utilli went up actually with "REP LSL" ?!?.
CPU utilization for five seconds: 34%/0%; one minute: 30%; five minutes: 29%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
114 9582762 1518651 6310 15.65% 15.40% 15.50% 0 Hulc LED Process
96 1834 108 16981 5.11% 0.41% 0.08% 1 SSH Process
238 192955 73776 2615 3.35% 0.63% 0.40% 0 SNMP ENGINE
236 78907 133133 592 2.07% 0.31% 0.17% 0 IP SNMP
183 4008328 164163844 24 1.27% 7.01% 7.28% 0 REP LSL Hello PP
Can't Cisco fix this ?
05-04-2011 05:37 AM
disable not-connected ports and you'll see a drop in the cpu usage for this process
06-20-2011 12:37 PM
I shut down the SPF ports not in use and saw CPU drop by a minimum of 20% on all of my 2960S-POE switches:
06-20-2011 01:07 PM
Then it came right back up to %60
06-20-2011 02:46 PM
Upgrade to either 12.2(55)SE3 or 12.2(58)SE1.
09-18-2011 06:03 PM
Hi,
After disable two SFP ports in 2960 the "Hulc LED process" dropped to 6.23%. Before it was 15.65%!!
This IOS (58) isn't consuming a lot of memory?
09-18-2011 06:08 PM
I've got news for you George, STAY AWAY from IOS level 15.0. Across the board, it's got a memory leak issue WITHOUT any configs.
I'm currently using 12.2(58)SE1 and I have no issue.
01-16-2012 05:09 AM
Hi,
i've got the same problem. We have two 3560x 48P running IOS 12.2(58)SE2 and the HULC LED process takes over 15% cpu load.
For what this process is responsable?
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100
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0....5....1....1....2....2....3....3....4....4....5....5....
0 5 0 5 0 5 0 5 0 5
CPU% per second (last 60 seconds)
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0....5....1....1....2....2....3....3....4....4....5....5....
0 5 0 5 0 5 0 5 0 5
CPU% per minute (last 60 minutes)
* = maximum CPU% # = average CPU%
1 1 1 1111 1
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CPU% per hour (last 72 hours)
* = maximum CPU% # = average CPU%
3560-x#sh processes cpu sorted 5min
CPU utilization for five seconds: 35%/0%; one minute: 35%; five minutes: 38%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
129 1769580351 396248960 4465 15.97% 15.39% 14.11% 0 Hulc LED Process
60 1017745522 191907631 5303 8.62% 7.60% 7.13% 0 RedEarth Tx Mana
211 1379704348 90033624 15324 0.15% 1.23% 5.45% 0 REP LSL Hello PP
59 266213943 266690463 998 2.23% 1.93% 1.92% 0 RedEarth I2C dri
97 394926822 33075411 11940 1.59% 1.55% 1.54% 0 hpm counter proc
04-20-2012 12:58 PM
I have the same issue as ssch1ndler does; exact same code revision but my usage for this particular process sits at 20% even after turning off the 4 gi1/1 - 4 ports.
Anyone know if a newer version of the code has fixed this high cpu process?
Thank you
04-20-2012 02:01 PM
I have fought this matter with the TAC for quite a long time, they were adamant:
no fix is possible (hard to believe, I know) and one has to keep it as it is.
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