Scalability is the capability of a system to increase or decrease in performance under an increased or decreased load. Performance is the measure of a system's ability to execute its intended function within given time constraints.
Performance is all about speed and efficiency. When designing for performance, you need to make sure that your system can handle the workload it's currently being asked to do quickly and without any hiccups. Optimizing your system for performance will help ensure that it runs smoothly today and tomorrow. There are a few factors you'll need to keep in mind when design for performance:
Scalability is all about ensuring that your system can handle an increase in load. This could mean anything from a sudden spike in traffic to gradual growth over time. When designing for scalability, you need to make sure that your system can elastically scale up or down as needed. This means being able to add or remove resources as needed without any downtime. Optimizing for scalability will help ensure that your system can keep up with demand now and in the future. There are a few factors you'll need to keep in mind when design for scalability: