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 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?
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- What should the processor do if a cache request cannot be satisfied while a block is being written from the write buffer back into main memory?arrow_forwardA 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_forward
- If the data being requested is too large to fit in the cache, a write buffer will bring it to the attention of the CPU by retrieving it from main memory. What should the next step be?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_forwardWhat should the processor do if a cache request cannot be satisfied while a block is being written from the write buffer back into main memory?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_forwardAt the same time as it sends a block from the write buffer back to main memory, the processor makes a request to the cache.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_forward
- What should occur if the processor sends a request to the cache while a write buffer block is being returned to main memory?arrow_forwardWhat should the processor do if a cache request can't be completed while a block is being written back into main memory from the write buffer?arrow_forwardIf a processor request reaches the cache while a write buffer block is being flushed back to main memory, what should happen?arrow_forward
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