
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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How much data from a log entry can a certain log processing function access? The code below calculates the average number of cache misses per entry while utilising 64-byte cache blocks without prefetching.
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- How much of a log entry's data can a particular log processing function access? The following code determines the typical number of cache misses per entry while using 64-byte cache blocks and no prefetching.arrow_forwardD Question 24 Assume the address format for a 2-way set-associative cache is as follows: 4 bits 2 bits 2 bits Tag Set Offset 8 bits Given the cache directory is as shown in the diagram below, indicate which cache set the memory reference Ox5E maps to (express set number in decimal) and whether it results in a cache hits or miss Copyright © 2016-2021 by A.Berrached-All Rights Reserved. Set Tag valid 00 1 10 01 1 1 10 11 Question 25 0000 1101 0000 0001 0000 1011 0101 1000 1 1 0arrow_forwardThe ability to freely associate data items is the primary characteristic that distinguishes a fully associative cache from a directly mapped cache. This ability is the major distinction between the two types of caches.arrow_forward
- Which fields inside a log entry would a particular log processing function be able to access if it is applied to that entry? The following piece of code determines the average number of cache misses per entry by making use of 64-byte cache blocks and by not using prefetching.arrow_forwardA cache designer wishes to enhance the size of a 4 KiB physically labeled, virtually indexed cache. Is it feasible to create a 16 KiB direct-mapped cache with the page size mentioned above, assuming two words per block? How would the designer expand the cache's data size?arrow_forwardHow many fields can the specified log processing function access in a log entry? Calculating average cache miss rates per entry using 64-byte blocks and no prefetching is done using the following code.arrow_forward
- Which fields in a log entry will the given log processing function be able to access? Using 64-byte cache blocks and no prefetching, the following code calculates the average number of cache misses per entry.arrow_forwardWhich fields in a log entry will the supplied log processing function access? How many cache misses per entry does the given function experience on average while using 64-byte cache blocks and no prefetching?arrow_forwardThe low order 4 bits of the address indicate location in the cache line and the next 4 bits indicate which line in the cache should be used and the remaining bits of the address are used as the cache tag. If the following addresses are read in this order, indicate (circle or similar) each one that would result in a cache miss. 2A1220 2A122C B14408 B14428 2A122Carrow_forward
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