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This is a guest post from Vlad Mihalcea the author of the High-Performance Java Persistence book, on the notion of performance and scalability in enterprise systems.
An enterprise application needs to store and retrieve as much data and as fast as possible. In application performance management, the two most important metrics are response time and throughput.
The lower the response time, the more responsive an application becomes. Response time is, therefore, the measure of performance. Scaling is about maintaining low response times while increasing system load, so throughput is the measure of scalability.
Response time and throughput
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