Hello,
The two processes consuming you CPU are:
- K5L3Unicast Adj Tabl 2.00 16.67
- K5 L2 Hardware Addre 2.00 22.99
These processes become active when MAC addresses are learnt and then introduced in CEF adjacency table.
You should check if you have any Layer 2 loop looking at host flapping messages on the log affecting one or more MAC addresses being learnt in two interfaces at the same time. If you messages appear try enabling the terminal monitor on the switch.
Hope this helps.