Texas Instruments SPRAA56 appendix Important Notice

Page 29

IMPORTANT NOTICE

Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment.

TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed.

TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and applications using TI components. To minimize the risks associated with customer products and applications, customers should provide adequate design and operating safeguards.

TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information published by TI regarding third–party products or services does not constitute a license from TI to use such products or services or a warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property of the third party, or a license from TI under the patents or other intellectual property of TI.

Reproduction of information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptive business practice. TI is not responsible or liable for such altered documentation.

Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is not responsible or liable for any such statements.

Mailing Address:

Texas Instruments

Post Office Box 655303

Dallas, Texas 75265

Copyright 2004, Texas Instruments Incorporated

Image 29
Contents RTA Techniques for Performance Measurement Modifications to the Base ExampleViewing Benchmarks in the Instrumented Application References Appendix A. Performance ImpactFigures Important Benchmarks for Video ApplicationsSPRAA56 Base Application OverviewTskInput 1 LOG DSP/BIOS and RF5 Components Used4 UTL 2 STS3 TRC Requirements for Viewing RTA Benchmarks Modifications to the Base ExampleAdding the Control TSK and MBX Communication Splitting the Encode and Decode CELLsTskO utput Querying the H.263 Encoder for StatusTskInput Controlling the Frame Rate Measuring Function Execution Time with the UTL Module RTA Techniques for Performance MeasurementMeasuring End-to-End Latencies Measuring Task Scheduling LatenciesMeasuring the Frame Rate Programmatic Measurement of Total CPU Load Memory Bus Utilization 86,400 B 720*480 = 345,600 B14,400 B External memoryBitrate and Frame Type Methods for Transmitting Measured Performance Data Requirements Viewing Benchmarks in the Instrumented ApplicationApplication-Specific Control via GEL Scripts in CCStudio Load the h263loopbackrta.out program Running the ApplicationSPRAA56 Interpreting the Benchmarks Expected Values for the STS Objects Expected and Measured STS Benchmarks Expected Values Delivered to the Message Log Debug ModeControlling the Run-Time Parameters Dynamically Expected and Measured Logged BenchmarksCapture and Display Task Benchmarking ReferencesOverhead of Performance Measurement Techniques Appendix A. Performance ImpactRTA Effects on CPU Load Measured Performance of Benchmarking TechniquesMemory Footprint Details Memory FootprintImportant Notice