Consider a hypothetical machine with 1K words of cache memory. They are iin direct-mapped organization, with cache block size of 128 words, using LRU replacement algorithm. Suppose the cache hit time is 8ns, the time to transfer the first word from main memory to cache is 50ns, while subsequent words require 10ns/word.
Consider the following read pattern (in blocks of 128 words, and block id starts from 0):
1 2 3 5 6 2 3 4 9 10 11 6 3 6 1 7 8 4 5 9 11 1 2 4 5 12 13 14 15 13 14
and assume each block contains an average of 48 references.
(d) Calculate the average memory access time.
Consider a hypothetical machine with 1K words of cache memory. They are iin direct-mapped organiz...
Consider a hypothetical machine with 1K words of cache memory. They are iin direct-mapped organization, with cache block size of 128 words, using LRU replacement algorithm. Suppose the cache hit time is 8ns, the time to transfer the first word from main memory to cache is 50ns, while subsequent words require 10ns/word. Consider the following read pattern (in blocks of 128 words, and block id starts from 0): 1 2 3 5 6 2 3 4 9 10 11 6...
1. 2-way Set Associative Cache Memory Consider a hypothetical machine with 1K words of cache memory. They are in two-way set associative organization, with cache block size of 128 words, using LRU replacement algorithm. Suppose the cache hit time is 9ns, the time to transfer the first word from main memory to cache is 50ns, while subsequent words require 10ns/word. Consider the following read pattern (in blocks of 128 words, and block id starts from 0): 1 2 3 5...
For a direct-mapped cache memory, the following data is given. Main memory Cache memory Size = 64KB Size = 128B Block size = 8Bytes Block size = 4Bytes Calculate the following: Number of blocks created in main memory. Number of blocks created in cache memory. The distribution of the address fields in the system. Q5. For a direct-mapped cache memory, the following data is given. Main memory Cache memory Size...
6. a) Consider a direct mapped cache with 10 blocks of 10 words each. Suppose main memory is 1000 words. For each memory address below say what cache block it maps to, what is the offset, and what is the tag. 934, 666, 348, 522
Consider a memory hierarchy using one of the three organization for main memory shown in a figure below. Assume that the cache block size is 32 words, That the width of organization b is 4 words, and that the number of banks in organization c is 2. If the main memory latency for a new access is 10 cycles, sending address time is 1 cycle and the transfer time is 1 cycle, What are the miss penalties for each of...
3) Direct-Mapped Cache Determine the Cache line holding an address EEL 3801 UCF Given: An 8-bit computer system with 4 MB of main memory. It has a 16K-words direct-mapped cache with a block size of 16 Bytes. Sought: Calculate the cache line number when Byte address 5678ten from main memory is mapped to cache. Consider that numbering of main memory blocks and cache lines starts from zero. Express your answer in hexadecimal. It is required to show ALL incremental steps...
Given: An 8-bit computer system with 4 MB of main memory. It has a 16K-words direct-mapped cache with a block size of 16 Bytes. Sought: Calculate the cache line number when Byte address2271len from main memory is mapped to cache. Consider that numbering of main memory blocks and cache lines starts from zero. Express your answer in hexadecimal. It is required to show ALL incremental steps of the solution.
A direct-mapped cache has 4 blocks and each block holds four bytes of data. The memory system is byte-addressable. Determine if each of the memory references below is a hit (H) or miss (M). You assume the cache is initially empty and memory references are given in decimal. Reference 27 0 13 24 50 24 36 14 48 45 47 48 H/M?
Module 10 Assignment - Direct-mapped Cache Direct-Mapped Cache In this question you're given a 16-byte memory segment and an 8-byte cache. Given the following series of memory accesses, complete the table below. Use the first Contents/Tag column to insert an item to the cache the first time and use the second Contents/Tag column if a cache entry is overwritten. Note: no index will have more than two blocks mapped to it. The first two examples have been provided. How many...
Using the sequences of 32-bit memory read references, given as word addresses in the following table: 6 214 175 214 6 84 65 174 64 105 85 215 For each of these read accesses, identify the binary address, the tag, the index, and whether it experiences a hit or a miss, for each of the following cache configurations. Assume the cache is initially empty. A direct-mapped cache with 16 one-word blocks. A direct-mapped cache with two-word blocks and a total...