The DA is a java process that run within a JVM (Java Virtual Machine).
To view the heap usage of the JVM you can use an OnDemand Report in CAPC
CA Performance Management 3.x
In CA Performance Center navigate to:
Reports-On Demand Report templates:
At the bottom select new:
In the new window that opens, give this new report a name and any details you desire.
And I chose chart per metric, when I used chart with multiple metrics, I got all the counters in one box and didn’t like it.
You have to scroll down now as the window can't be expanded.
In add items window, hit add/remove items button to open new window….
Then filter for the aggregator and select it
Then click add and ok
Now that we have a device selected, the DA, we have available metrics.
Expand jvm health and pick the ones you want, please be sure to add all 7 metrics shown below:
From Available Metrics choose:
Data Aggregator JVM Health
Heap Size in Bytes - Average
Percent Heap Used - Average
Percent Heap Used - Maximum
Percent Heap Used - minimum
Application pause time - maximum
Application pause time - minimum
Application pause time - total
Run for your desired timeframe.