Performance Management & Metrics Flashcards
6 cards from real CPL practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Performance Management & Metrics flashcards as text
What is the first step in performance optimization?
Answer: Establish baseline measurements and identify bottlenecks
Establishing baselines and identifying bottlenecks ensures optimization efforts target actual performance issues rather than assumed problems.
Why is monitoring important for performance management?
Answer: It provides real-time visibility into system behavior and early warning of issues
Continuous monitoring provides real-time visibility, enables proactive issue detection, and supplies data for informed optimization decisions.
What is the 80/20 rule as applied to performance optimization?
Answer: 80% of performance gains come from optimizing 20% of the code or configuration
The 80/20 rule (Pareto principle) in optimization means focusing on the critical 20% of areas that will yield 80% of performance improvements, maximizing efficiency.
When should performance testing be conducted?
Answer: Throughout the development lifecycle and before major releases
Performance testing throughout the lifecycle catches issues early when they are cheaper to fix and prevents performance regressions in new releases.
What is capacity planning?
Answer: Predicting future resource needs based on growth trends and requirements
Capacity planning uses growth trends and requirements to predict future needs, ensuring adequate resources are available without over-provisioning.
How do you determine if an optimization was successful?
Answer: Compare post-optimization metrics against the established baseline
Comparing post-optimization metrics against established baselines provides objective evidence of improvement and quantifies the impact of changes.