Siemens SM2 monitoring system User Manual

U3585-J-Z125-8-76

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SM2 monitoring programs

The RESPONSETIME monitoring program records information on response times, think
times, transactions times, and wait times in the BCAM pool. It supplies useful monitored
data for dialog-oriented DCAM applications only (with NEA names).

The response time is understood to mean the time between the receipt of a message by
the host and the sending of a response to the partner application.

SM2 makes a distinction between two kinds of response time:

Definition 1

The time between an input (receipt of a message) and the next output
(sending of a message) via the same connection .

Definition 2

The time between an input and the next output or all follow-up outputs sent
before a further input.

The SM2 administrator can choose between these two definitions (using the SET-
RESPONSETIME-PARAMETER or MODIFY-RESPONSETIME-PARAMETER statement).

The think time is understood to mean the time taken between output and the next (subse-
quent) input. The transaction time is understood to mean the total time elapsed between
an input and the final output. The wait time is understood to mean the time between entry
of a message in the BCAM pool and retrieval of the message from this pool.

For simplicity, interaction is the term used as an overall definition covering the wait,
response, think, transaction times.