Benchmark Factory for Database 7.6 - User Guide

Replace Child Latencies

Latency is delay added to the execution of a transaction to control of how fast transactions are submitted to the system-under-test. You can use the Replace child latencies dialog to quickly modify latency for all the direct children of a test.  For example, when an Oracle trace file is imported, the latencies are automatically set to replay the transactions at their original rate, but changing these to a set value can replay the transactions in a shorter period of time.

To replace child latencies at the test level

1. Use one to the following methods to open the Replace Child Latencies dialog:

   • In the New/Edit Job Wizard, right-click a test and select Replace Child Latencies.

     

   • In the Jobs View pane, right-click a test and select Replace Child Latencies.

     

2. In the Replace Child Latencies dialog, modify latency options. See About Latency for more information.

   

4. Click OK to save your changes and close the dialog. The changes are applied to all the child transactions of the transaction mix. The changes are not inherited by the grandchild transactions. For example, if the transaction mix contains a user scenario, the latency values for the individual transactions in the user scenario remain unchanged. To change the latency values for transactions in the user scenario, right-click the user scenario and select Replace Child Latencies.

To replace child latencies at the User Scenario level

1. In the New/Edit Job wizard, select a transaction mix step and open the Transactions tab.

2. In the Transactions tab, right-click the user scenario and select Replace Child Latencies.

   

3. In the Replace Child Latencies dialog, modify latency options. See About Latency for more information.

Use Global Search/Replace

Global Search and Replace allows you to search for and replace text from the selected item and all of its children.

To use Global Search/Replace

1. In the Jobs View, right-click a test you wish to search and replace.
2. Select Global Search/Replace. The Global Search and Replace dialog displays.
3. Enter the desired parameter in Find What.
4. Enter the desired parameter in Replace With.
5. Check Match Case or Match Whole word if desired.
6. Click Replace.

Save Job as BMF Script

You can save a job as a Benchmark Factory script.

To save a job as a BMF Script

1. After creating and saving a job, select the job in the Jobs View pane and click Save, or select File | Save.
2. Browse to and select a location in which to save the file.
3. The job is saved as a .bfj file.

Copy Test to Replay, Mix, Goal, or Scalability Test

A test can be quickly converted from one test type to another by using the "copy" command.  A workload test is an assembled test comprised of user scenarios and/or transactions. These tests can be run with multiple virtual users. A workload test can be one of three types: mix test, replay test, goal test, or scalability test.

In Benchmark Factory you can copy a:

• Replay test

  A Replay Test runs multiple transactions with each one running independently on a specified number of users. The test will run until the defined number of executions for each transaction or a specified time limit is reached.

• Mixed test

  A Mixed Workload test runs for a specified time at each predetermined user loads level. Each user will run a transaction mix based upon the weights defined on the transactions tab.  For example, if a test has two transactions, A and B, with A having a weight of one and B having a weight of four, on average B will run four times for every time A is run once. The run order will be randomly generated for each user so they are not all running the same transaction simultaneously. That run order is used for that user each time the test is performed to ensure reproducible results.

• Goal test

  A goal test is used to find maximum throughput or response time goals. A transaction mix is executed at user load levels, determined by setting a beginning, ending, and interval value. When run, the specified goal criterion is evaluated at the end of each iteration and the test ends once the goal or maximum user load has been reached.

• Scalability

  A SQL Scalability test executes each transaction individually for each userload and timing period.  For example,  a test has two transactions, A and B, and two userloads of 10 and 20, with an iteration length of one minute. Transaction A would execute continually for one minute at userload 10, then B would do the same. Next A will run at userload 20, followed again by test B, for a total time of 4 minutes.

Copying a workload test creates a new test containing all compatible settings, user scenarios, and transactions from the original test.

To copy a workload test to a Replay Test, Mix Test, Goal Test, or Scalability test

1. Right-click a test in the Jobs View pane or in the New/Edit Job Wizard. A drop-down displays.
2. Select the desired type of test you want to copy to.
3. The test is created and displays in the Jobs View or New/Edit Job Wizard.