Cisco Quantum Flow Processor
The QFP is a supplementary processor (not the main CPU of the device) that is used for packet processing, and it is found on various Cisco platforms. It is what is known as a Packet Processing Element or PPE. It is a dedicated piece of hardware within the router whose sole purpose it is to process packets, with whatever QoS, policies, route maps, routing, or other packet processing functions on the data plane that may be configured.
By default, the usage of this processor is monitored, and syslog messages are presented whenever a threshold of 80% usage is surpassed. This threshold can be modified using the following command:
platform qfp utilization monitor load
Links:
https://www.ciscolive.com/c/dam/r/ciscolive/emea/docs/2018/pdf/BRKRST-3404.pdf