276 disk storage

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Unformatted text preview: . . . . . . . . . . . . . . . . . 276 Disk Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285 Storage Technology Trends . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293 Locality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295 Locality of References to Program Data . . . . . . . . . . . . . . . . . . . . . . . . 295 Locality of Instruction Fetches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297 Summary of Locality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297 8 6.3 CONTENTS The Memory Hierarchy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298 6.3.1 6.3.2 6.4 6.4.1 6.4.2 6.4.3 6.4.4 6.4.5 6.4.6 6.4.7 6.5 6.6 Caching in the Memory Hierarchy . . . . . . . . . . . . . . . . . . . . . . . . . . . 301 Summary of Memory Hierarchy Concepts . . . . . . . . . . . . . . . . . . . . . . . 303 Generic Cache Memory Organization . . . . ....
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