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Whats the difference between cache memory L1 and cache memory L2 ?
Whats the difference between cache memory L1 and cache memory L2 ?
cache memory related question
A two-way set-associative cache has lines of 4 bytes and a total size of 4 kB. The 32-MB main memory is byte addressable. Show the format of main memory addresses.
Memory Hierarchy and Cache Consider a computer with byte-addressable memory. Addresses are 24-bits. The cache is...
Memory Hierarchy and Cache Consider a computer with byte-addressable memory. Addresses are 24-bits. The cache is capable of storing a total of 64KB of data, and frames of 32 bytes, Show the format of a 24-bit memory address for: a- Direct mapped cache b- 2-way associative cache c- 4-way associative cache d- For each type of cache above, indicate where would the reference memory address 0DEFB6 map
1. Cache memory (8pts) Consider adding cache to a processor-memory system design. The microprocessor without cache needs 12 clock cycles to read a 16-bit word from the memory. With cache, it take...
1. Cache memory (8pts) Consider adding cache to a processor-memory system design. The microprocessor without cache needs 12 clock cycles to read a 16-bit word from the memory. With cache, it takes only 4 clock cycles if the data happens to be in the cache and a total 20 clock cycles including the cache misses. a. What is the performance ratio of the cache system to the non-cache system given a hit rate of 80%? b. For what hit rate...
1. Cache memory (8pts) Consider adding cache to a processor-memory system desigrn. The microprocessor without cache needs 12 clock cycles to read a 16-bit word from the memory. With cache, it takes o...
1. Cache memory (8pts) Consider adding cache to a processor-memory system desigrn. The microprocessor without cache needs 12 clock cycles to read a 16-bit word from the memory. With cache, it takes only 4 clock cycles if the data happens to be in the cache and a total 20 clock cycles including the cache misses a. What is the performance ratio of the cache system to the non-cache system given a hit rate of 80%? b. For what hit rate...
1. 2-way Set Associative Cache Memory Consider a hypothetical machine with 1K words of cache memory....
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...
Discuss the concept of Cache Memory and Virtual Memory as applied to storage in a computer...
Discuss the concept of Cache Memory and Virtual Memory as applied to storage in a computer system.
In a memory hierarchy organization with three levels of caches and main memory assume that: Cache...
In a memory hierarchy organization with three levels of caches and main memory assume that: Cache Level L1 has access time tc1 = 5ns and hit ratio h1 = 90%, Cache 2 Level L2 has access time tc2 = 15 ns and hit ratio h2 = 80% Cache Level 3 has access time tc3 = 45 and hit ratio h3 = 60% Main memory access time tm = 100 ns. Find average memory access time. You are required to show...
For a direct-mapped cache memory, the following data is given. Main memory &nb
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...
(a) A computer system with a cache memory has an average memory access time of TM=...
(a) A computer system with a cache memory has an average memory access time of TM= 50 ns with a hit ratio of h= 80%. The primary memory access time is TP=120 ns. What is the cache memory access time, TC?
1. Cache memory (8pts) Consider adding cache to a processor-memory system design. The microprocessor without cache needs 12 clock cycles to read a 16-bit word from the memory. With cache, it takes only 4 clock cycles if the data happens to be in the cache and a total 20 clock cycles including the cache misses. a. What is the performance ratio of the cache system to the non-cache system given a hit rate of 80%? b. For what hit rate...
1. Cache memory (8pts) Consider adding cache to a processor-memory system desigrn. The microprocessor without cache needs 12 clock cycles to read a 16-bit word from the memory. With cache, it takes only 4 clock cycles if the data happens to be in the cache and a total 20 clock cycles including the cache misses a. What is the performance ratio of the cache system to the non-cache system given a hit rate of 80%? b. For what hit rate...
In a memory hierarchy organization with three levels of caches and main memory assume that: Cache Level L1 has access time tc1 = 5ns and hit ratio h1 = 90%, Cache 2 Level L2 has access time tc2 = 15 ns and hit ratio h2 = 80% Cache Level 3 has access time tc3 = 45 and hit ratio h3 = 60% Main memory access time tm = 100 ns. Find average memory access time. You are required to show...
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...
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