P2L5: Thread Performance Considerations

Question 1

Some possible Usefulness of threads (Depends)

Answer 1

Question 2

Contrast the pros-and-cons of a multithreaded (MT) and multiprocess (MP) implementation of a webserver, as described in the Flash paper.

Answer 2

Multi Threaded Web Server

pros

• Shared address space
• shared state
• cheap context swith

cons

• Not simple implementation
• requires synchronization
• underlying support for threads

Multi Process Web Server

pros

• simple programming

cons

• High memory usage
• costly context swith
• hard/costly to maintain shared state

Question 3

12. Event-Driven Model

Answer 3

Question 4

14. Event-Driven Model: Why

Answer 4

Question 5

Flash event driven web server

Answer 5

Question 6

Benefits of event driven model

Answer 6