Multi-Tier Trace

摘要

The disclosure relates to methods and systems for trace solutions in a computer processing system. More specifically, the disclosure relates to methods and systems for a multi-tier trace architecture. A method for separating raw trace data includes receiving raw trace data from one of more CPUs and/or busses in the system, separating the raw trace data into high bandwidth trace information (HBTI) and low bandwidth trace information (LBTI), recording the HBTI on an on-chip trace buffer until a specific event is triggered, and providing in parallel the LBTI over an off-chip trace interface. In one embodiment, the raw trace data are provided to a separate HBTI trace unit and a separate LBTI respectively. The HBTI trace unit processes the HBTI and generates a HBTI message, and the LBTI trace unit processes the LBTI and generates a LBTI message.

主权项

1. A system for separating trace data output from a plurality of CPUs and/or busses, the system comprising:
a low bandwidth trace information (LBTI) path configured to receive and process low bandwidth trace information from the plurality of CPUs and/or busses; a high bandwidth trace information (HBTI) path configured to receive and process high bandwidth trace information from the plurality of CPUs and/or busses; an on-chip trace buffer configured to record the high bandwidth trace information until a specific event trigger occurs; and an off-chip trace interface configured to receive and output in parallel the low bandwidth trace information.