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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If a processor request reaches the cache while a write buffer block is being flushed back to main memory, what should happen?
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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?arrow_forwardWhen 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_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
- How may Direct Memory Access (DMA) make the system's concurrency better? Does this make it more difficult to produce hardware?arrow_forwardThe write buffer will return a block to main memory while the CPU submits a cache-unmet request. What may happen next?arrow_forwardWhat happens if a processor makes a cache-unfulfilled request while pushing a block back to main memory from the write buffer?arrow_forward
- What should happen if the processor makes a request that hits the cache while it is in the midst of transferring a block from the write buffer back to the main memory?arrow_forwardWhat should happen if the processor sends a request that hits the cache while publishing a block back to main memory from the write buffer?arrow_forwardWhat should happen if the processor provides a request that is not satisfied in the cache while a block is being transferred back to main memory from the write buffer?arrow_forward
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