1. Jehan-François Pâris Fall 2004
Review
Jehan-François Pâris
Fall 2004

2. Spring
What do shuttle do to improve the performance of door invocations?

3. Exokernel
What is a LibOS?

4. Spin and Nooks
Which one of them is the most fault-tolerant?

5. Clocks
What would happen if we rolled back a computer clock, by say, one hour?

6. Spring
What do shuttle do to improve the performance of door invocations?
They put the invoked process in the RUNNING state

7. Exokernel What is a LibOS?
A LibOS is a user-level library providing to users the same interface as a regular OS

8. Spin and Nooks Which one of them is the most fault-tolerant?
Spin because it prevents ALL unauthorized accesses to kernel resources

9. Clocks
What would happen if we rolled back a computer clock, by say, one hour?
Al the events occurring during the next hour will have incorrect timestamps.