Feedback Control For Computer Systems -

): The target value (e.g., a 95% cache hit rate or 200ms latency). Controller (

): The algorithm that calculates what change to apply based on the error. Control Input ( Feedback Control for Computer Systems

The controller is the most common algorithm used to close the feedback loop. Feedback Control for Computer Systems [Book] - O'Reilly ): The target value (e

): The lever the controller pulls (e.g., scaling server instances or adjusting cache size). The computer process being managed. Measured Output ( ): The actual current performance metric. 🛠️ The PID Controller: The Standard Algorithm ): The target value (e.g.