JVM Memory Consumption

JVM Heap and Garbage Collection

An important aspect of performance management is a healthy JVM. The ADF Performance Monitor shows realtime or historic JVM heap usage and JVM garbage collection times. If garbage collections are running longer than a configurable threshold (for example 20 seconds) a warning sign is shown. This is often an indication of a problem – such as a freeze of all current requests because the JVM cannot clear enough memory. This should be a trigger to drill down to for further analysis in order to find the root cause.

ADF Business Components Memory Analyzer

Like other web applications, ADF applications potentially use a lot of memory. To prevent memory over-consumption (often a pain-point in ADF applications) the ADF BC Memory Analyzer detects how many database rows are fetched by ADF ViewObjects. When too many rows are loaded into memory a warning sign is shown with suggested solutions. Read more here.