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Set thresholds

Define pass/fail criteria based on performance metrics

Set thresholds to automatically flag regressions when metrics exceed acceptable limits.

Depending on your preferred method, select any one of the following to set thresholds:

Set thresholds

Use thresholds to decide test status based on performance and reliability metrics:

  • Click Thresholds to expand the section. Thresholds section expanded in BrowserStack load testing UI
  • Click Add metric for criteria and choose a metric. Add metric for criteria button with metric selection dropdown in BrowserStack load testing UI
  • Set the condition (for example, is greater than, is less than) and enter a value.
  • Repeat for additional metrics as needed:

Available metrics:

  • Total requests (count)
  • Error % (percentage)
  • Error count (count)
  • Avg request rate (req/s)
  • Avg response time (ms)
  • p90 response time (ms)
  • p75 LCP (s)
  • p75 INP (ms)
  • p75 FCP (s)
  • p75 TTFB (ms)
  • p75 CLS

Set thresholds

Use thresholds to determine test pass or fail based on metrics.

Available Metric list and corresponding keys for load testing:

  • Avg. response time - avg-response-time
  • p90 response time - p90-response-time
  • Avg. request rate - avg-request-rate
  • Total requests - total-requests
  • Error % - error-percentage
  • Error count - error-count
  • p75 LCP- p75-lcp
  • p75 FCP- p75-fcp
  • p75 INP- p75-inp
  • p75 CLS- p75-cls
  • p75 TTFB - p75-ttfb

Available conditions:

  • =
  • !=
  • >
  • <
  • >=
  • <=

We assume the following units for the metrics:

  • Avg. response time, p90 response time, INP, TTFB - ms
  • Avg. request rate - reqs/s
  • Error % - %
  • FCP, LCP - s
  • Total requests, Error count, CLS - no unit
browserstack-load.yml
thresholds:
  - metric: avg-response-time
    condition: '>='
    threshold: 20  
  - metric: error-percentage 
    condition: '<='
    threshold: 5

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