Pool Manager uses 40% of CPU

Cisco have some nice docs now for Troubleshooting High CPU.

"Pool Manager Manager process for managing growth and discarding requests from dynamic pools at the interrupt level"

This is a shot in the dark and may not be helpful however check out the buffers. Perhaps you do not have enough of something and that in itself is increasing the CPU.

If you like post sh buffers sh proc cpu | inc pool manager sh mem ! < -- first few lines only. sh proc cpu ! < -- first few lines only.

I now do not hesitate to increase buffers manually to prevent misses and failures provided that there is SUFFICIENT MEMORY if I suspect that a router is under any kind of stress and shows significant misses or failures.

My view is that the IOS memory-miser buffer tuning is not really any longer always appropriate.

Hello,

great, thanks for the tips. One thing I noticed is that when the CPU is high, the huge buffers pool is completely exhausted. Could the depletion of the huge buffers pool, the Pool Manager process, and the high CPU be related ?

Thanks in advance again for your help.

Regards,

GP