Java Agent VSE Properties

The configuration properties for the DevTest Java Agent include some properties that apply to VSE.

You can configure these properties from the Agents window of the DevTest Portal. The properties appear in the Settings tab.

Startup mode

Specifies the virtualization mode at startup>

Values:

Shallow recording

Specifies to perform callbacks only on top level (in the stack frames) virtualized methods.

Maximum graph size

Defines the maximum size (in bytes) of a serialized-to-XML object graph.

Reply timeout

Specifies the maximum interval that is allowed for a VSE reply at playback. This value should exceed any think time in your tests.

Omit by reference

Specifies whether to record or replay arguments that reference and void methods modify.

Values:

Selected: Do not record or replay arguments that reference and void methods modify. Select this check box if you are not virtualizing any void methods that change the arguments state. No void methods go to VSE and return immediately to enhance performance.
Cleared: Record or replay arguments the reference methods and void methods modify.

Cache responses

Specifies whether to cache response objects key by their string representation to bypass unmarshalling.

Selected: Cache response objects key by their string representation. When enabled, this property still causes a request to VSE. When the XML payload is received back in the agent, instead of deserializing it, we try to look for the object in a cache. The key is essentially an XML representation of the response. This setting is helpful to improve performance if responses are not in a mutable state. Selecting this property can increase memory usage.
Cleared: Do not cache response objects key by their string representation.

Enable JIT

VSE jit means model/image logic is partially (or entirely) cached in the agent.

JIT threshold

Defines how many method invocations cause VSE jitting to occur.