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High memory usage - VSS switch

gautamzone
Level 1
Level 1

Dear Friends,

We have a 6509 VSS running 12.2(33)SXI4. We got high mem usage alert from CS-MARS for that (indicating memory utilization is more than 90%). Looking at sh memory, i see that we have enough free mem (more than 60% available). However, looking at the output of show platform hardware capacity cpu, we see that utlilization has gone realy high. Please find below the captures of show memory and show platform hardware capacity cpu.

sh memory
System Memory: 1048576K total, 393469K used, 655107K free, 1000K kernel reserved
Lowest(b)    : 670699520

show platform hardware capacity cpu
CPU Resources
  CPU utilization: Sw/Mod             5 seconds       1 minute       5 minutes
                    1/1                0% /  1%             0%              0%
                    1/2                2% /  1%             0%              0%
                    1/3                2% /  2%             4%              4%
                    1/5  RP            1% /  9%             1%              1%
                    1/5  SP           12% /  6%             6%              6%
                    2/1                0% /  1%             0%              0%
                    2/2                0% /  1%             0%              0%
                    2/3               15% /  6%             5%              4%
                    2/5  RP            2% /  1%             0%              0%
                    2/5  SP            4% /  9%             5%              5%
  Processor memory: Sw/Mod   Bytes:       Total           Used           %Used
                     1/1              268435456      222449664             83%
                     1/2              268435456      222404608             83%
                     1/3             1073741824      258412544             24%
                     1/5  RP         1073741824      402911232             38%
                     1/5  SP         1073741824      478400512             45%
                     2/1              268435456      222490624             83%
                     2/2              268435456      222445568             83%
                     2/3             1073741824      258416640             24%
                     2/5  RP         1073741824      397701120             37%
                     2/5  SP         1073741824      478404608             45%
  I/O memory: Sw/Mod         Bytes:       Total           Used           %Used
               1/1                      8126344        7886544             97%
               1/2                      8126344        7886544             97%
               1/3                     11796240       11442472             97%
               1/5  RP                 12058384       10715832             89%
               1/5  SP                  8388608        8104304             97%
               2/1                      8126344        7886544             97%
               2/2                      8126344        7886544             97%
               2/3                     11796240       11442472             97%
               2/5  RP                 12058384       10715832             89%
               2/5  SP                  8388608        8104304             97%

Output Interpreter is unable to understand this output. Does anyone give some pointers on this? Thanks a lot

Thanks a lot

Gautam

1 Reply 1

Calin C.
Level 5
Level 5

Hello Gautam,

Since I have no clue of what's configured on your machine, I cannot give you a straight answer of what is causing high load. There can be more than on cause for this. Instead I can suggest to read this:

http://www.cisco.com/en/US/products/hw/switches/ps708/products_tech_note09186a00804916e0.shtml

There a clear list of what you should check in case of high load.

Good luck and let us know if you found something!

Cheers,

Calin