Graphical Representation of the Model Levels using the RASSP Taxonomy (Cont.)
Performance models may be written at any level of abstraction and measure system performance associated with response time, throughput, and utilization
The algorithm level of abstraction describes a procedure for implementing a function as a specific sequence of arithmetic operations, conditions, and loops
At the algorithm level, a model does not contain timing information, either internally or externally. At this level, data is represented at the functional level where function is captured internally, but no external interface is modeled. The structure is not defined, and SW programmability is at the DSP primitive level (i.e. FFT, FIR, etc..) e.g. using Matlab.
Performance models mainly measure the time effects of the system such as throughput, latency, and utilization