
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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- Consider a 32-bit computer using byte-addressable memory accessing different types of cache. Each cache consists of 256 blocks with one 32-bit word per block. Specify how many bits are used for the tag, index or set, and byte offset for each type of cache listed in the table below.

Transcribed Image Text:Туре
Direct Mapped
Two-way Set Associative
Four-way Set Associative
Fully Associative
Tag
Index/Set
Byte Offset
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- Problem 0. The following table gives some of the parameters for a number of different hardware caches. Fill in the table with the values of the missing parameters. Recall that m is the number of physical address bits, C is the cache size in bytes, B is the block size in bytes, E is the associativity, i.e., lines per set, S is the number of sets, t is the number of tag bits, s is the number of set index bits, and b is the number of block offset bits. Cache m 48 32030 (b) 48 32 24 24 C B E 16384 32 16 32768 64 65536 128 512 32 1024 8 8 4 14 1 4 S b S tarrow_forwardHELP WITH PART A,B, AND Carrow_forwardThe phrases "unified cache" and "Hadley cache" should be defined.arrow_forward
- help with part A B AND C.arrow_forwardA memory system has 4 KB byte-addressable main memory and a direct-mapped cache that consists of 8 blocks with 16 bytes per block. The following shows the main memory address format that allows us to map addresses from main memory to cache. Note: 12 bit address, 4 bit offset, 3 bit $block, and 5 bit tag Assume the cache directory shown below:arrow_forwardSuppose a byte-addressable computer using set-associative cache has 216 bytes of main memory and a cache of 32 blocks, and each cache block contains 8 bytes.Q.) If this cache is 2-way set associative, what is the format of a memory address as seen by the cache; that is, what are the sizes of the tag, set, and offset fields?arrow_forward
- Suppose a computer using fully associative cache has 224 words of main memory and a cache of 512 blocks, where each cache block contains 16 words. How many blocks of main memory are there? What is the format of a memory address as seen by the cache, i.e., what are the sizes of the tag and offset fields? To which cache block will the memory reference 17042416 map?arrow_forwardSuppose a byte-addressable computer using set-associative cache has 216 bytes of main memory and a cache of 32 blocks, and each cache block contains 8 bytes.Q.) If this cache is 4-way set associative, what is the format of a memory address as seen by the cache?arrow_forward5. suppose a computer using fully associative cache has 224 bytes of byte-addressable main memory and a cache of 128 blocks, where each cache block contains 64 bytes. a) how many blocks of main memory are there? b) what is the format of a memory address as seen by the cache ; that is, what are the size of the tag and offset field. c) To which cache block will the memory address 0x01D872 map?arrow_forward
- Computer science homework Please help me with this homework question.arrow_forwardAssume the address format for a fully-associative cache is as follows: 6 bits 2 bits Tag Offset 8 bits Given the cache directory is as shown in the diagram below, indicate whether the memory reference Ox5E results in a cache hits or a miss. Tag valid Block 000 110110 001 000001 010 000010 011 000101 100 001000 1 101 100010 110 010111 111 110110 O Hit O Missarrow_forwardConvert the following Compact Memory Notation diagram into an Array Memory Notation diagram. Assume the addresses are 4-bit binary values and the data are 8-bit binary values. Hint: The solution to this question is simply the reformatted diagram in Array Notation.arrow_forward
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