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Whats the difference between cache memory L1 and cache memory L2 ?
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 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 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...
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 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...
(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?
Please refer the following memory system : Main memory : 64 MB Cache memory: 64 KB Block size of 1 KB 1. Direct Mapping Offset bits? Number of lines in cache? Line number bits? Tag size? 2. Fully Associative Mapping Offset bits? Tag size? 3. 2-way set-associative mapping Offset bits? Number of lines in cache? Set number bits? Tag size? 4. 4-way set-associative mapping Offset bits? Number of lines in cache? Set number bits? Tag size?