Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Which fields inside a log entry may be accessed by the log processing function that is specified. The following line of code calculates the average number of cache misses for each item, making use of 64-byte cache blocks and ignoring any opportunities for prefetching.
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- Which fields inside an entry in a log file will be made available to be processed by the log processing function that has been specified? The following piece of code causes an average of how many cache misses per entry, assuming that cache blocks are 64 bytes in size and that no prefetching is performed.arrow_forwardWhich 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_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
- Caching data may improve performance by taking use of "spatial locality" and "temporal locality." Caches employ these two occurrences in many ways.arrow_forwardIf a processor sends a cache-unfulfilled request while a block is being written back to main memory, should something happen?arrow_forwardWhich 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_forward
- Which 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_forwardAssume that a block is being returned from the write buffer to main memory when the processor makes a partially completed request to the cache. The events should go as follows.arrow_forward
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