@Override
    public int getValue() {
        return value;
    }
Apdex dissatisfaction levels of Tolerating (apdex_t) and Frustrated (apdex_f) indicate how slow site performance
contributes to poor customer experiences in your app. For example:
<p>
10000: All responses are satisfactory. Tolerating responses half satisfy a user. For example, if all responses are
Tolerating, then the Apdex value will be 5000. 0: None of the responses are satisfactory.
oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/metrics/ApdexMetrics.java