Service Level Agreements Overview

Service level agreements (SLAs) are specific goals that you define for your performance test. After a test run, LoadRunner Analysis compares these goals against performance related data that was gathered and stored during the course of the run, and determines whether the SLA passed or failed.

Depending on the measurements that you are evaluating for your goal, Performance Center determines the SLA status in one of the following ways:

SLA Type

Description

SLA status determined at time intervals over a timeline

Analysis displays SLA statuses at set time intervals over a timeline within the test run. At each time interval in the timeline—for example, every 10 seconds—Analysis checks to see if the measurement's performance deviated from the threshold defined in the SLA.

Measurements that can be evaluated in this way:

  • Average Transaction Response Time

  • Errors per Second

SLA status determined over the whole run

Analysis displays a single SLA status for the whole test run.

Measurements that can be evaluated in this way:

  • Transaction Response Time - Percentile

  • Total Hits per run

  • Average Hits (hits/second) per run

  • Total Throughput (bytes) per run

  • Average Throughput (bytes/second) per run

Note:  

  • You can define and edit SLAs in Performance Center or in LoadRunner Analysis.

  • For details about viewing post-run SLA statuses in Performance Center, see SLA Report.

  • For details about viewing post-run SLA statuses in Analysis reports, see the LoadRunner Help Center (select the relevant version).

See also: