We will explore the impact of cache capacity on performance, focusing exclusively on the data cache and excluding instruction storage in the caches. Cache access time is directly linked to its capacity. For the sake of simplicity, let's assume that accessing the main memory takes 100ns, and in a specific program, 50% of instructions involve data access. Two distinct processors, denoted as P1 and P2, are engaged in executing this program. Each processor is equipped with its own L1 cache. L1 size L1 Miss Rate L1 Hit Time P1 64 KB 3.6% 1.26 ns P2 128 KB 3.1% 2.17ns (a) What is the AMAT for P1 and P2 assuming no other levels of cache?

Q: Assume a program has 20% store and load. When we run this program in a computer, we observe that L1…

A: given information:- store and load instruction = 20% L1 hit rate = 98%      L1 data hit rate = 96%…

Q: Consider two microprocessors having 32-bit and 64-bit wide external data buses, respectfully. The…

A: Solution: Option 'B' is the correct  option. The 64-bit microprocessor is twice as fast.

Q: Evaluate the effect of the instruction LDR r1, [r2], #4, given the initial values below. What is the…

A: As ldr r1,[r2], #4 means r1= mem[r2] this means r1=mem[1004] so r1=20 r2 = 1004+4 r2=1008  r3=50…

Q: As a simple model of a bus-based multiprocessor system without caching, suppose that one instruction…

A:

Q: Develop a hypothetical architecture with illustrative instruction and data formats, instruction…

A: Solution ::   Op-field: specifies the operation to be performed;   Address-field: provides operands…

Q: Consider the one-bus CPU organization below: 1ofrom external Data Control Unit to external Address…

A: Given question has asked to write the sequence of micro-instructions necessary to perform the…

Q: Consider a microprocessor that has a block I/O transfer instruction such as that found on the Z8000.…

A: As per guidelines I can answer only first question. Thank You. Given data:               Its first…

Q: Consider the 2-address instruction SUB R1, X which subtract the contents of location X from the…

A: Overview : In computer central processing units, micro-operations (also known as micro-ops) are the…

Q: Assume that your program has 2400 memory accesses in 20,000 instructions. The instruction cache miss…

A: Answer: (B)Explanation: Since, L2 cache is shared between Instruction and Data. Average Instruction…

Q: f. Compare the actual speedup factor provided by Machine C over Machine B with the theoretical…

A: To calculate the speedup factor provided by Machine C over Machine B, it needs to consider the…

Q: Suppose you have a processor with a base CPI of 1.0, and two caches (L1 and L2). You have the…

A:

Q: Assume that your program has 2400 memory accesses in 20,000 instructions. The instruction cache miss…

A: Answer: (B)

Q: 5-Consider a computer running a program that requires 400 s, with 80 s spent executing FP…

A: Solution: Given, Total time = 400s FP (Floating point) = 80s L/S (Load / Store) = 40s Branch B = 40s

Fundamentals of memory

A collection of connected storage devices form the memory unit. It is a space to store data and instructions required for processing. Information is stored in a memory unit in the form of bits. There are two types of memory namely: