| # Apdex threshold |
| |
| Apdex is a measure of response time based against a set threshold. It measures the ratio of satisfactory response times |
| to unsatisfactory response times. The response time is measured from an asset request to completed delivery back to |
| the requestor. |
| |
| A user defines a response time threshold T. All responses handled in T or less time satisfy the user. |
| |
| For example, if T is 1.2 seconds and a response completes in 0.5 seconds, then the user is satisfied. All responses |
| greater than 1.2 seconds dissatisfy the user. Responses greater than 4.8 seconds frustrate the user. |
| |
| The apdex threshold T can be configured in `service-apdex-threshold.yml` file or via [Dynamic Configuration](dynamic-config.md). |
| The `default` item will apply to a service that isn't defined in this configuration as the default threshold. |
| |
| ## Configuration Format |
| |
| The configuration content includes the names and thresholds of the services: |
| |
| ```yml |
| # default threshold is 500ms |
| default: 500 |
| # example: |
| # the threshold of service "tomcat" is 1s |
| # tomcat: 1000 |
| # the threshold of service "springboot1" is 50ms |
| # springboot1: 50 |
| ``` |
