Hardware Based Online Profiling in AMIDAR Processors

Dynamically reconfigurable architectures offer the opportunity to migrate software into hardware functional units at runtime. Architectures derived from the AMIDAR model exhibit such possibilities. Yet, the question has to be answered, which parts of the running application should be transformed into hardware. The migration of complete methods or procedures into hardware is often not feasible. In this contribution we show a hardware circuit that enables the processor to collect an execution profile of Java methods with a high resolution. We also show, how this profile information can be used to make reasonable choices for candidate instruction sequences.