Docs: Add sampling and RAM to FAQ
@@ -44,6 +44,29 @@ It also respects other agents attached to your application at the same time.
=== Do I need to re-compile my application?
No
+[float]
+[[recommended-sample-rate]]
+=== What is the recommended sample rate?
+There is no one-size-fits-all answer to an ideal sample rate.
+Sampling comes down to your preferences and your application.
+The more you want to sample, the more network bandwidth and disk space you'll need.
+
+It's important to note that the latency of an application won't be affected much by the agent (in the order of single-digit microseconds),
+even if you sample at 100%.
+However, the background reporter thread has some work to do for serializing and gzipping events.
+If your application is not CPU bound, this shouldn't matter much.
+Note that if the APM Server can't handle all the events,
+the agent will drop data to not crash your application.
+It will then also not serialize and gzip the events.
+
+Sample rate can be changed by altering the <<config-transaction-sample-rate>> configuration.
+
+[float]
+[[recommended-ram]]
+=== Is there recommended RAM when using APM?
+No. The Java agent is designed to be very light on memory.
+It has a static overhead of only a couple MBs.
+
[float]
[[faq-unsupported-technologies]]
=== What if the agent doesn't support the technologies I'm using?
