Option: A, B, D
WB Cache: Updates to the cache block don’t result in Updates to the Main Memory immediately. Burst Writes are preferred for higher throughput and those needing higher write performance.
WT Cache: Updates to the Cache block are reflected on Main Memory before carrying out other processes. Consistency is preferred.
- A WB must necessarily have a dirty bit to avoid redundant writes to Main Memory. Whereas a WT cache needn’t as the change is reflected after a write. False
- A WB cache’s primary use is to increase throughput or useful work. Multiple writes to the same cache block will not be reflected immediately, avoiding unnecessary data transfer time. False
- WT cache’s main goal is to prefer consistency overwrite performance, and a cache block is made to reflect the current main memory. True
- LRU doesn’t have specific replacement strategies for dirty and regular blocks. Hence a read miss might evict a dirty block. False