This recorder keeps track of the last value recoded and automatically adds it after collecting a snapshot. This is
useful in cases where the absence of recordings does not necessarily mean the absence of values. For example, if this
recorder is used for recording the mailbox size of an actor, and it only gets updated upon message enqueue o dequeue,
the absence of recordings during 1 second means that the size hasn't change (example: the actor being blocked doing
some work) and it should keep its last known value, instead of dropping to zero and then going back to the real value
after a new event is processed.
Linear Supertypes
HdrRecorder, MetricRecorder, AtomicHistogram, AbstractHistogram, Serializable, AbstractHistogramBase, AnyRef, Any
This recorder keeps track of the last value recoded and automatically adds it after collecting a snapshot. This is useful in cases where the absence of recordings does not necessarily mean the absence of values. For example, if this recorder is used for recording the mailbox size of an actor, and it only gets updated upon message enqueue o dequeue, the absence of recordings during 1 second means that the size hasn't change (example: the actor being blocked doing some work) and it should keep its last known value, instead of dropping to zero and then going back to the real value after a new event is processed.