Computer Systems: A Programmer's Perspective (3rd Edition)
3rd Edition
ISBN: 9780134092669
Author: Bryant, Randal E. Bryant, David R. O'Hallaron, David R., Randal E.; O'Hallaron, Bryant/O'hallaron
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Expert Solution & Answer
Chapter 6.6, Problem 6.21PP
Explanation of Solution
Estimating time in CPU cycles:
It is given that the sustained throughput using large strides from L1 is: 12,000 MB/s.
Clock frequency= 2,100 MHz
Individual read accesses= 8-byte long
Hence, one can estimate that it takes roughly
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
I need help in construct a matlab code to find the voltage, the currents, and the watts based on that circuit.
Objective
Implement Bottom-Up Iterative MergeSort and analyze its efficiency compared to
recursive MergeSort. Unlike the recursive approach, which involves multiple function
calls and stack overhead, the bottom-up version sorts iteratively by merging small
subarrays first, reducing recursion depth and improving performance.
Task
1. Implement Bottom-Up Iterative MergeSort
о Start with single-element subarrays and iteratively merge them into larger
sorted sections.
Use a loop-based merging process instead of recursion.
○ Implement an efficient in-place merging strategy if possible.
2. Performance Analysis
Compare execution time with recursive MergeSort on random, nearly
sorted, and reversed datasets.
○ Measure and plot time complexity vs. input size.
O
Submission
Explain why the iterative version reduces function call overhead and when
it performs better.
•
Code implementation with comments.
•
A short report (1-2 pages) comparing performance.
•
Graph of execution time vs. input size for…
Given a shared data set, we allow multiple readers to read at the same time, and only one single writer can access the shared data at the same time. In the lecture slides, a solution is given. However, the problem is that the write cannot write forever, if there are always at least one reader.
How to ensure that the writer can eventually write? Propose your solution by using semaphores and implemented in Python
from threading import Thread, Semaphore
from time import sleep
from sys import stdout
class Reader(Thread):
def__init__(self, name):
self.n=name; Thread.__init__(self)
defrun(self):
globalnr, nw, dr, dw
whileTrue:
# ⟨await nw == 0 then nr += 1⟩
e.acquire()
ifnw>0:
#if nw > 0 or dw > 0 :
dr+=1; e.release(); r.acquire()
nr+=1
ifdr>0: dr-=1; r.release()
else: e.release()
# read data
stdout.write(self.n+' reading\n')
sleep(1)
# ⟨nr -= 1⟩
e.acquire()
nr-=1
ifnr==0anddw>0:
dw-=1 ; w.release()
else: e.release()
class Writer(Thread):
def__init__(self, name):…
Chapter 6 Solutions
Computer Systems: A Programmer's Perspective (3rd Edition)
Ch. 6.1 - Prob. 6.1PPCh. 6.1 - Prob. 6.2PPCh. 6.1 - Prob. 6.3PPCh. 6.1 - Prob. 6.4PPCh. 6.1 - Prob. 6.5PPCh. 6.1 - Prob. 6.6PPCh. 6.2 - Prob. 6.7PPCh. 6.2 - Prob. 6.8PPCh. 6.4 - Prob. 6.9PPCh. 6.4 - Prob. 6.10PP
Ch. 6.4 - Prob. 6.11PPCh. 6.4 - Prob. 6.12PPCh. 6.4 - Prob. 6.13PPCh. 6.4 - Prob. 6.14PPCh. 6.4 - Prob. 6.15PPCh. 6.4 - Prob. 6.16PPCh. 6.5 - Prob. 6.17PPCh. 6.5 - Prob. 6.18PPCh. 6.5 - Prob. 6.19PPCh. 6.5 - Prob. 6.20PPCh. 6.6 - Prob. 6.21PPCh. 6 - Prob. 6.22HWCh. 6 - Prob. 6.23HWCh. 6 - Suppose that a 2 MB file consisting of 512-byte...Ch. 6 - The following table gives the parameters for a...Ch. 6 - The following table gives the parameters for a...Ch. 6 - Prob. 6.27HWCh. 6 - This problem concerns the cache in Practice...Ch. 6 - Suppose we have a system with the following...Ch. 6 - Suppose we have a system with following...Ch. 6 - Suppose that a program using the cache in Problem...Ch. 6 - Repeat Problem 6.31 for memory address0x16E8 A....Ch. 6 - Prob. 6.33HWCh. 6 - Prob. 6.34HWCh. 6 - Prob. 6.35HWCh. 6 - Prob. 6.36HWCh. 6 - Prob. 6.37HWCh. 6 - Prob. 6.38HWCh. 6 - Prob. 6.39HWCh. 6 - Given the assumptions in Problem 6.38, determine...Ch. 6 - You are writing a new 3D game that you hope will...Ch. 6 - Prob. 6.42HWCh. 6 - Prob. 6.43HWCh. 6 - Prob. 6.45HWCh. 6 - Prob. 6.46HW
Knowledge Booster
Similar questions
- Année scolaire: 2024/2025 Collège SMARA Devoir à domicile 1 semestre 2 Prof: NILAJ PHYSIQUE CHIMIE Nom et Prénom: Niveau: 3APIC Exercice 1: Durée: 1 heure 1) Donner la définition des termes suivantes? Le Mouvement : La vitesse moyenne: 2) Répondre par « Vrai » ou «> Un objet peut être en mouvement et au repos Si la vitesse est constante, le mouvement sera uniforme. 3) Compléter les phrases par les termes qui conviennent : Pour déterminer le mouvement ou le repos d'un objet, vous devez choisir un autre objet appelé le d'un point d'un corps mobile est l'ensemble des positions qu'il occupe durant son mouvement. Il y a trois types de trajectoires: circulaire. La distance de freinage dépend de 4) Cocher la bonne réponse? > La relation entre la vitesse, la distance et le temps: d Vm = dxt > L'unité internationale de la vitesse moyenne est : m/s 5) On considère la figure suivante : Compléter le tableau par les mots suivants : En mouvement au repos A C Km/h et et l' m. s-1 15 A B C Sol…arrow_forward5. Here is a tree corresponding to T(64) for an unknown recurrence relation: 32 + lg 64 8+ lg 16 2+ lg 4 2+lg4 2+lg4 8+ lg 16 2+lg4 7 7 7 7 7 7 7 7 Fill in the details for the corresponding recurrence relation: T(n) = T(n/4)+ T(1)= Put scratch work below. Scratch work is not graded but may be used for regrade partial credit.arrow_forwardTop screenshot is question, the rest are examples and explinations.arrow_forward
- Activity Time (days) Predecessors Earliest Expected Completion Time (TE) Latest Expected Completion Time (TE) 1 4 2 5 1 3456782222 6 1 7 1 4 4 6 2,3 5 3 5 5,7 9 4 7 10 3 6,9 11 5 8,9,10 12 4 11 Slack Critical Path? Yes or Noarrow_forwardI would like to know about the following concepts: 1. defragmentation 2. disk management 3. hardware RAIDarrow_forwardNode.js, Express, and Nunjucks Templates?arrow_forward
- CIT244 Program Project 3 Assignment As with any assigned program, do not wait until the last minute to start. Start early in the week the program is due so you can ask questions if you get stuck Node.js and Express and Nunjucks Templates We have gotten to the good stuff. There is a program similar to this assignment given as the last example in the lecture notes for the week that discusses node static files. This program will take more time that previous assignments. There are several examples you should study first, particularly the pizza order example program available in the examples programs folder for the week discussing static files. You should study and run the pizza order program before trying this program. The pseudo-company is called Sun or Fun, which offers cheap flights from Louisville to either Miami or Vegas. Here's a video of how it should work. NOTE: You will hear or see references to Handlebars in this video. We used to use Handlebars, but it will be Nunjucks that we…arrow_forwardhow to write the expression for the outputarrow_forwardPlease answer the exercise below(C programme)arrow_forward
- I need to list and know about some local storage options available in Windows Server 2019, thank youarrow_forwardPlease answer both Exercise 1 and2(these questions are not GRADED)arrow_forwardDiscussion 1. Comment on your results. 2. Compare between the practical and theoretical results. 3. Find VB, Vc on the figure below: 3V V₁₁ R₁ B IR, R, IR, R www ΙΚΩ www www I 1.5KQ 18₁ 82002 R₁ 3.3KQ R₂ 2.2KQ E Darrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
C++ for Engineers and ScientistsComputer ScienceISBN:9781133187844Author:Bronson, Gary J.Publisher:Course Technology Ptr
Systems ArchitectureComputer ScienceISBN:9781305080195Author:Stephen D. BurdPublisher:Cengage Learning
Principles of Information Systems (MindTap Course...Computer ScienceISBN:9781285867168Author:Ralph Stair, George ReynoldsPublisher:Cengage Learning
Operations Research : Applications and AlgorithmsComputer ScienceISBN:9780534380588Author:Wayne L. WinstonPublisher:Brooks Cole
COMPREHENSIVE MICROSOFT OFFICE 365 EXCEComputer ScienceISBN:9780357392676Author:FREUND, StevenPublisher:CENGAGE L
A+ Guide to Hardware (Standalone Book) (MindTap C...Computer ScienceISBN:9781305266452Author:Jean AndrewsPublisher:Cengage Learning
C++ for Engineers and Scientists
Computer Science
ISBN:9781133187844
Author:Bronson, Gary J.
Publisher:Course Technology Ptr
Systems Architecture
Computer Science
ISBN:9781305080195
Author:Stephen D. Burd
Publisher:Cengage Learning
Principles of Information Systems (MindTap Course...
Computer Science
ISBN:9781285867168
Author:Ralph Stair, George Reynolds
Publisher:Cengage Learning
Operations Research : Applications and Algorithms
Computer Science
ISBN:9780534380588
Author:Wayne L. Winston
Publisher:Brooks Cole
COMPREHENSIVE MICROSOFT OFFICE 365 EXCE
Computer Science
ISBN:9780357392676
Author:FREUND, Steven
Publisher:CENGAGE L
A+ Guide to Hardware (Standalone Book) (MindTap C...
Computer Science
ISBN:9781305266452
Author:Jean Andrews
Publisher:Cengage Learning