With IBM® Rational® Performance Tester Extension
for Socket Protocols, you can test the performance of TN3270 terminal
server applications.
Informative performance test results rely on sound test development.
Each of these stages contributes to the generation of meaningful test
results:
- Test creation. You create a test by recording a session
with a client application. Typically, the recorded session starts
when you run the TN3270 terminal client. You then interact with the
application in order to produce relevant network traffic. The session
ends when you close the terminal client or end the recording. The
recording is used to generate a performance test that reproduces the
behavior of the client application.
- Test editing. After recording, you can edit the recorded
events. You can replace recorded test values with variable test data
or add dynamic data to the test.
- Test validation. Before deploying the test, you can run
the test manually as a single virtual user to make sure that the test
runs smoothly and produces the expected results in a nominal environment
with minimal server load. You might complete multiple test editing
and validation cycles before your test is robust.
- Workload emulation with schedules. When the test runs repeatedly
as anticipated, you specify an execution schedule and user groups
to emulate a workload that a large number of virtual users generates.
- Schedule execution. You run the schedule, deploying test
execution over virtual users that can be hosted on remote hosts. Each
virtual user runs an instance of the test. Response time results are
collected.
- Evaluation of results. You evaluate the results that the
tests produce through the various reports that are generated during
execution. You can also design custom reports.