Throughput

Configure the Throughput load profile

Select Throughput from the dropdown menu, then set the target request rate, the virtual user (VU) ceiling, and the duration.

• Target RPS: Enter the requests per second you want to sustain during the test.
• Max VUs: Set the maximum number of VUs the engine can allocate to maintain the target rate. Select Suggest to fill in a recommended value, which you can edit.
• Total Duration: Specify how long to hold the target rate (in minutes, seconds, or a combination of both).

BrowserStack scales VUs up to this ceiling to hold the target rate. If your system under test slows down and the engine reaches the ceiling, the achieved RPS can fall below the target.

Configure the Throughput load profile

Use the loadProfile config to set a target request rate instead of a fixed number of VUs. BrowserStack maintains the target rate by scaling VUs up to the ceiling you set. Configure the following fields:

• Under the loadProfile block, set type to throughput.
• Set rps to the target requests per second to sustain. Use a positive integer.
• Set duration to how long to hold the target rate. The minimum duration is 10s.
• Set max-vus to the maximum number of VUs the engine can allocate to maintain the rate. Use a positive integer that does not exceed your plan’s VU limit.

If your system under test slows down and the engine reaches the max-vus ceiling, the achieved RPS can fall below the target.

Set duration

BrowserStack holds the target rate for the specified duration.

How to set duration values:

• If less than 1 minute: use seconds (_s), e.g., 45s
• If less than 1 hour: use minutes and seconds (_m_s), e.g., 12m30s, 10m
• If 1 hour or more: use hours, minutes, and seconds (_h_m_s), e.g., 1h5m20s, 1h17m, 1h

loadProfile:
  type: throughput
  rps: 5000
  duration: 15m
  max-vus: 800