ESTIMATING LATENCY OF AN APPLICATION

摘要

Techniques for generating and using service call graphs are provided. In one technique, trace data items generated by different services are correlated to generate a service call graph. Trace data indicates when certain services are called and their respective latencies as a result of a client request. A service call graph may reflect a single trace or multiple traces over a particular period of time. A service call graph may be analyzed to inform administrators of a web site how a web application and the services it relies on are performing. A service call graph may be used to determine whether there are sufficient resources to support a projected increase in traffic to a web application. A service call graph may be used to estimate a cost of a web application. Multiple service call graphs may be compared to determine one or more root causes of a performance problem.

主权项

1. A method comprising:
identifying a set of services that an application relies on during execution of the application; based on history data that indicates a latency associated with each service in the set of services, estimating a latency of the application; wherein the method is performed by one or more computing devices.