Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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What should the CPU do if it receives a cache request while it is flushing a block from the write buffer back into main memory?
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- A write buffer will bring the data from main memory back to the CPU if it is too big to fit in the cache. What should we do next?arrow_forwardWhen a processor submits a request that cannot be satisfied by the cache, and a block is being pushed back to main memory from the write buffer, should something happen?arrow_forwardIf the CPU receives a cache request while returning a block from the write buffer to main memory, what action should it take?arrow_forward
- What action should the CPU take if it is unable to satisfy a cache request when writing a block from the write buffer back into main memory?arrow_forwardAt the same time as the processor is making a request to the cache, it is returning a block from the write buffer to main memory.arrow_forwardWhat should happen when a processor issues a request that cannot be satisfied by the cache while a block is being flushed back to main memory from the write buffer?arrow_forward
- When the amount of data requested is more than what can be stored in cache, the CPU fetches it from main memory and returns it through the write buffer. Now what?arrow_forwardWhen a processor makes a request that cannot be satisfied by the cache while moving a block back to main memory from the write buffer, what happens?arrow_forwardWhat action should the processor take if it receives a cache request while it is in the process of flushing a block back into main memory from the write buffer?arrow_forward
- What is the point of having cache memory if we already have RAM, which is a memory that is built on volatile transistors? Is it feasible for a computer to use just a single kind of memory at a time?arrow_forwardWhat should happen if the processor sends a request that hits the cache while sending a block from the write buffer back to the main memory?arrow_forwardIn this scenario, the CPU is simultaneously making a cache request and returning a block from the write buffer to main memory.arrow_forward
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