Lecture_6-CSCIU511-Jahangir_Majumder-Spring_2025

What are the two main topics covered in this lecture on Operating Systems?

Concurrency and Threads.

What is the function used to create a new thread?

sthread_create()

In the thread lifecycle, what state does a thread enter after being created but before it's ready?

INIT.

What is the purpose of the thread_join function?

It waits for a thread to finish its execution.

What does TCB stand for and what does it store?

Thread Control Block; it stores per-thread state such as computation, current state, and data.

What are two key characteristics of threads in comparison to processes?

Threads are lightweight and can share the same address space.

What happens when a thread in a multi-threaded process dies?

Its stack is reclaimed by the process.

What is one key benefit of using threads?

They enhance efficiency in communication between programs.

What does the term 'synchronization' refer to in the context of threading?

Enforcing the order of thread execution to ensure consistent access to shared variables.

What problem does non-deterministic behavior in multi-threading lead to?

Undefined program behavior when threads concurrently read/write shared memory.

What is the key benefit of using threads in a program?

Threads enhance efficiency in communication between programs.