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Target performance

What does this dashboard tell me?

The Target Performance dashboard helps you visualize traffic patterns and performance metrics for API proxy backend targets.

The Target Performance dashboard

What does this dashboard measure?

Traffic by Target

Metric Description
All Targets Traffic Measures the total amount of traffic that passes from Apigee Edge to all backend targets.
<Target name>

Measures the total amount of traffic that passes from Apigee Edge to the specified backend target.

Traffic

Metric Description
Total Traffic Measures the total amount of traffic that passes from Apigee Edge to all backend targets.
Errors The total number of requests to backend targets that resulted in a successful response. Error responses do not count. 
Success The total number of all requests to backend targets that are unsuccessful (that do not return an error).

Response Time

See also this interesting article on the Apigee Community site: When can the Average Total Response Time be less than the Average Target Response Time?

Metric Description
Average Time The average number of milliseconds it takes from the time an entire API call is received on Apigee Edge to the time Edge begins sending a response back to the client app.
Average Target Time The average number of milliseconds that it takes from the point the entire API request is sent from Apigee Edge to a backend target to the time Edge receives a response. See also "What is target response time". 
Average Proxy Time The average number of milliseconds that it takes from the point the entire API request is received by Apigee Edge to the time Edge begins sending it to the target. See also "What is proxy response time". 

Target Errors

Metric Description
Total Errors Measures the total number of errors sent from backend targets to Apigee Edge.
3XX Errors Measures the total number of HTTP 3XX sent from backend targets to Apigee Edge.
4XX Errors Measures the total number of HTTP 4XX errors sent from backend targets to Apigee Edge.
5XX Errors Measures the total number of HTTP 5XX sent from backend targets to Apigee Edge.

Payload Size

Metric Description
Total Payload Size The total payload size for all requests and responses between Apigee Edge and backend targets.
Request Payload Size The total payload size for all requests sent from Apigee Edge to backend targets.
Response Payload Size The total payload size for all responses sent from backend targets to Apigee Edge.

How is proxy response time measured?

Proxy respone time is calculated from the time between when the entire request is received by Apigee Edge and when Apigee Edge begins to send the request to the backend target, as illustrated in the following figure:

How is target response time measured?

Target response time is calculated fromfrom the point when the entire response from the target is received by Apigee Edge to the time Edge begins sending it to the client app, as illustrated in the following figure:

What else do I need to know about this dashboard?

You can view metrics for all proxies or drill into specific proxies using the Target IP dimension dropdown menu at the top of the dashboard.

This dashboard uses standard controls, like the date and data aggregation selectors, hovering over graphs for more context, and so on. To learn more, see Using the analytics dashboards.

Help or comments?

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