4. Real-Time Systems

Timing Analysis — Quiz

Test your understanding of timing analysis with 5 practice questions.

Practice Questions

Question 1

Which of the following best describes the 'path analysis' component of static Worst-Case Execution Time (WCET) estimation?

Question 2

When considering a system with a multi-level cache, how does the 'cache hit rate' impact the accuracy of Worst-Case Execution Time (WCET) estimation?

Question 3

In the context of timing analysis, what is the primary challenge posed by 'interleaving' of tasks on a single-core processor for Worst-Case Execution Time (WCET) estimation?

Question 4

Consider a task that executes a critical section protected by a mutex. If the critical section's WCET is $T_{crit}$ and the maximum blocking time due to other tasks holding the mutex is $T_{block}$, what is the effective WCET of the task including the critical section?

Question 5

Which of the following is a fundamental limitation of 'measurement-based timing analysis' when attempting to guarantee the Worst-Case Execution Time (WCET) for all possible inputs and environmental conditions?