17 Questions
What type of parallelism involves distributing subsets of the same data across multiple cores, with the same operation performed on each?
Data parallelism
What is the purpose of Amdahl's Law?
To measure the performance gain from adding more processing cores
What is the term for distributing threads across cores, each thread performing a unique operation?
Task parallelism
What is the variable 'S' in Amdahl's Law formula?
The portion of the application that must be performed serially
What is the result of running an application with 75% parallelism and 25% serial components on a system with two processing cores?
A speedup of 1.5
What is a major advantage of using threads instead of processes in a multithreaded server architecture?
Lightweight thread creation
What is a major limitation of using a single-threaded process to service client requests in a web server?
Long wait times for clients
What is an advantage of using a multithreaded web server over a single-threaded process?
Ability to service multiple clients concurrently
What is a common use case for multithreaded applications?
Update display, fetch data, and spell checking
Why is process creation a less desirable approach in a multithreaded server architecture?
It is time consuming and resource intensive
What is a major characteristic of kernels in modern operating systems?
Multithreaded
What is the primary benefit of a multithreaded server architecture?
Enhanced responsiveness
How do threads share resources by default?
By sharing the memory and resources of the process
What is the primary challenge of multicore programming?
All of the above
What is a key difference between concurrency and parallelism?
Concurrency involves multiple tasks on a single core, while parallelism involves multiple tasks on multiple cores
What is the primary advantage of thread creation over process creation?
Threads have lower overhead and are cheaper to create
What is the primary benefit of resource sharing in multithreaded applications?
Code and data sharing
Understand the motivation and benefits of using threads in modern applications, including multithreading, concurrency, and process creation. Learn how threads can simplify code and increase efficiency in operating systems.
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