Computers as Components, 2nd Edition

xiv Contents

6.3.3 RMS vs. EDF ............................................ 323

6.3.4 A Closer Look at Our Modeling Assumptions......... 324

6.4 Interprocess Communication Mechanisms.................... 325

6.4.1 Shared Memory Communication ...................... 326

6.4.2 Message Passing ........................................ 329

6.4.3 Signals ................................................... 329

6.5 Evaluating Operating System Performance .................... 330

6.6 Power Management and Optimization for Processes ......... 333

6.7 Design Example: Telephone Answering Machine ............. 336

6.7.1 Theory of Operation and Requirements .............. 336

6.7.2 Specification ............................................ 340

6.7.3 System Architectur ...