- 1 State Analysis Many Stooping Coherence Protocols Have Additional State State Transitions Or Bus Transactions To Re 1 (10.57 KiB) Viewed 34 times
- 1 State Analysis Many Stooping Coherence Protocols Have Additional State State Transitions Or Bus Transactions To Re 2 (27.55 KiB) Viewed 34 times
1. State analysis. Many stooping coherence protocols have additional state, state transitions, or bus transactions to reduce the overhead of main- taining cache coherency. A common protocol optimization is to introduce an
Exclusive state (usually denoted E), indicating that no other node has a copy of the block, but it has not yet been modified, which is the MESI protocol we covered in class. Look at your results from the MSI protocol and evaluate how your results would change with an added Estate. Why would this change happen? Justify. Think of any additional states that you can add to the MSI protocol, other than E, to make any other optimizations. What are the benefits of the new state that you added, and how does it compare to the original MSI protocol? How does it compare to the MESI protocol? How would your results change with your new state? Justify and evaluate your comparisons.