For a direct-mapped cachedesign with a 64-bit address,the following bits of theaddress are used to access thecache.TagIndexOffset63-98-5|4-0Beginning from power on, thefollowing byte-addressed cachereferences are recorded.|Нех0004 10 84 E8 A0 | 400||1E 8C C1C B4 884(A) For each reference, list(i) its tag, index, and offset,(ii) whether it is a hit or amiss, and (iii) which byteswere replaced (if any).(B) What is the hit ratio?(C) List the final state of thecache, with each valid entryrepresented as a record of.For example,<0, 3, Mem [0xC00]-Mem [0×C1F]>

For Direct mapping of cache, Line no = block no mod(no of cache lines) Here, offset= 0-4 = 5 bits=32…

(A) For each reference, list (i) its tag, index, and offset, (ii) whether it is a hit or a miss, and (iii) which bytes were replaced (if any). (B) What is the hit ratio? (C) List the final state of the cache, with each valid entry represented as a record of .

(A) For each reference, list (i) its tag, index, and offset, (ii) whether it is a hit or a miss, and (iii) which bytes were replaced (if any). (B) What is the hit ratio? (C) List the final state of the cache, with each valid entry represented as a record of .

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

For a direct-mapped cache
design with a 64-bit address,
the following bits of the
address are used to access the
cache.
Tag
Index
Offset
63-9
8-5
|4-0
Beginning from power on, the
following byte-addressed cache
references are recorded.
|Нех
00
04 10 84 E8 A0 | 400||1E 8C C1C B4 884
(A) For each reference, list
(i) its tag, index, and offset,
(ii) whether it is a hit or a
miss, and (iii) which bytes
were replaced (if any).
(B) What is the hit ratio?
(C) List the final state of the
cache, with each valid entry
represented as a record of
<index, tag, data>.
For example,
<0, 3, Mem [0xC00]-Mem [0×C1F]>

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