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Failure and Failure % view presents a page or a transaction failure rate on a timeline and its changes depending on the number of emulated VUs. Four curves are displayed: errors, timeouts, users, and missed goals. This view can be used to answer a lot of performance related questions regarding the quality of service as a function of load.

Failure view’s graph helps to analyze scalability and to determine how many virtual users the page or transaction can handle.

For example, to determine how many users can be handled to meet the response time goal in at least 75% of cases, follow these steps:

  1. Find an approximate point of intersection of Missed Goal curve (navy blue) and 25% failure rate.
  2. Mouse over it to determine its timestamp (01:30)
  3. Find a point with the same timestamp on the Users curve (blue) and note the number of users reached this point (18)

This page can handle 18 concurrent users to meet page response call it, at least 75% cases.

Note: Failure view is available only if a page or transaction has at least one error, timeout, or missed goal occurrence.
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