Interpreting the Benchmarks | Texas Instruments SPRAA56 specification

SPRAA56

Figure 6. Workspace Including RTA Windows

5.3Interpreting the Benchmarks

There are a total of 20 statistics measured by the application: 16 application-specific STS objects and 4 objects created automatically with the TSKs. Figure 7 shows a sample Statistics View of all these measurements.

22DSP/BIOS Real-Time Analysis (RTA) and Debugging Applied to a Video Application

Page 22

Image 22

Texas Instruments SPRAA56 appendix Interpreting the Benchmarks, Workspace Including RTA Windows

Contents

Viewing Benchmarks in the Instrumented Application Modifications to the Base ExampleRTA Techniques for Performance Measurement References Appendix A. Performance Impact Important Benchmarks for Video Applications Figures Base Application Overview SPRAA56 TskInput DSP/BIOS and RF5 Components Used 1 LOG 3 TRC 2 STS4 UTL Modifications to the Base Example Requirements for Viewing RTA Benchmarks Splitting the Encode and Decode CELLs Adding the Control TSK and MBX Communication TskInput Querying the H.263 Encoder for StatusTskO utput Controlling the Frame Rate RTA Techniques for Performance Measurement Measuring Function Execution Time with the UTL Module Measuring Task Scheduling Latencies Measuring End-to-End Latencies Measuring the Frame Rate Programmatic Measurement of Total CPU Load Memory Bus Utilization 14,400 B 720*480 = 345,600 B86,400 B External memory Bitrate and Frame Type Methods for Transmitting Measured Performance Data Application-Specific Control via GEL Scripts in CCStudio Viewing Benchmarks in the Instrumented ApplicationRequirements Running the Application Load the h263loopbackrta.out program SPRAA56 Interpreting the Benchmarks Expected Values for the STS Objects Expected and Measured STS Benchmarks Controlling the Run-Time Parameters Dynamically Debug ModeExpected Values Delivered to the Message Log Expected and Measured Logged Benchmarks References Capture and Display Task Benchmarking RTA Effects on CPU Load Appendix A. Performance ImpactOverhead of Performance Measurement Techniques Measured Performance of Benchmarking Techniques Memory Footprint Memory Footprint Details Important Notice