A write through cache will always store any changes made in the cache in memory immediately replace the first item that was inserted into the cache when it is full use fully associative cache mapping set a dirty bit when the cache has been modified so the changes can be stored later

A write through cache will always store any changes made in the cache in memory immediately replace the first item that was inserted into the cache when it is full use fully associative cache mapping set a dirty bit when the cache has been modified so the changes can be stored later

Systems Architecture

7th Edition

ISBN:9781305080195

Author:Stephen D. Burd

Publisher:Stephen D. Burd

Chapter6: System Integration And Performance

Section: Chapter Questions

Problem 29VE

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Concept explainers

Types of database architectures

A Database Architecture represents the Database Management System’s (DBMS) design (schema). The DBMS architecture makes it easy to understand the components involved in the database system and their relations. The DBMS architecture may vary based on the system on which it runs. Some systems contain both client and server machines whereas some run only on a server machine. Based on the architecture, the system can be classified as centralized, decentralized, or hierarchical.

Question

A write through cache will always
store any changes made in the cache in memory immediately
replace the first item that was inserted into the cache when it is full
use fully associative cache mapping
set a dirty bit when the cache has been modified so the changes can be stored
later

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When a block leaves the write buffer and returns to main memory, does anything need to happen if the processing unit makes a cache-unfulfilled request?
“Prefetching” is a technique that leverages predictable address patterns to speculatively bring in additional cache blocks when a particular cache block is accessed. One example of prefetching is a stream buff er that prefetches sequentially adjacent cache blocks into a separate buff er when a particular cache block is brought in. If the data is found in the prefetch buff er, it is considered as a hit and moved into the cache and the next cache block is prefetched. Assume a two-entry stream buff er and assume that the cache latency is such that a cache block can be loaded before the computation on the previous cache block is completed. What is the miss rate for the address stream above?Cache block size (B) can aff ect both miss rate and miss latency. Assuming a 1-CPI machine with an average of 1.35 references (both instruction and data) per instruction, help find the optimal block size given the following miss rates for various block sizes. 8: 4% 16: 3% 32: 2% 64: 1.5% 128: 1%…
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Paging: Select all of the following statements that are true. Systems that use paging but do not support inverted page tables maintain at least one separate page table for each process. The frame table is a system-wide data structure. When paging is applied, the selected page size determines which part of a virtual address belongs to the page number and which to the offset. The page size may differ from the frame size. The Translation Look-aside Buffer (TLB) represents a page directory for all pages in the system. Paging is prone to internal fragmentation.
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A message slot is a cache line that contains status flags and the message itself. The state can be empty or ready, and communication occurs through a single cache line. Both the sender and the receiver write the message to the cache line. The receiver updates the state from empty to ready, then polls the cache line in a loop waiting for the sender to send a message. The sender waits in a tight loop until the receiver acknowledges the cache line, changes the state from ready to empty, and acknowledges receipt. Explain that the system uses a snooping cache coherence protocol and describe the cache-coherence transaction taking place on the coherence bus when a message transfer occurs.
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tn a Gwey number of nesber of cache block ip 256. Neember of blocky Set associative cache worde werds any equal to block sye tag bite cre four size fuhysicel memory
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