Memory Management

Applies to ReadyAPI 3.51, last modified on February 16, 2024

During test runs, ReadyAPI collects data on the target web service performance to help you learn how your web service behaves under the load.

However, when ReadyAPI runs a large load test for a long period of time, collecting and storing a large amount of test data can consume a lot of your machine memory. This may slow down the test run or cause other performance problems in ReadyAPI.

To avoid possible performance issues and run large load tests more efficiently, reduce the amount of collected data:

  • Reduce the amount of data ReadyAPI collects for assertions. Assertions you add to your load tests verify that the test results meet the specified criteria and report errors if those criteria are violated. Configure ReadyAPI to collect only brief data on assertion errors:

    1. Click Preferences on the toolbar or select File > Preferences from the main menu.

    2. In the ReadyAPI Preferences dialog, switch to the ReadyAPI tabbed page.

    3. Clear the Complete Error Logs check box.

    API load testing with ReadyAPI: Logs complete messages to reports on errors

    Click the image to enlarge it.

  • Limit the amount of points used to draw charts. The long load tests may require a lot of memory to draw the full charts. To avoid possible issues, use the ‑Dloadui.charts.maxpoints=<value> JVM option to set the maximum number of points used to draw a chart. When ReadyAPI reaches the specified number of points, it removes the oldest one from the memory, so the beginning of the chart is not drawn. It affects graphs shown on the Load page, graph views on the Statistics page, and graphs exported to printable reports.

    This option affects only information used to draw charts. You can examine statistics of the entire test by using table views.

Note that the Discard Successful Results option of the underlying test case does not affect the load testing. ReadyAPI always discards successful results during the load test run.

  • Discard responses. To reduce the memory used to simulate test steps, configure the functional test on which your load test step is based to discard responses returned from the target web service:

    1. In Functional Tests, open the test case on which your load test is based.

    2. Select a test step and switch to the REST Request Properties tab.

    3. On the REST Request Properties tab, set Discard Response to true.

    Discard Response property
  • Keep the response window closed during the test run. To prevent ReadyAPI from collecting response data during the test run, close the Response window. Otherwise, ReadyAPI will collect and display response data regardless of settings you configured.

See Also

Test Steps

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