| 摘要 |
Systems and methods are provided for collecting application performance data. The system (100) includes a server (110) for hosting a server-side application (120). An instrumentation module (130) is included on the server. The instrumentation module can selectively instrument functions (125) of the server-side application to obtain instrumented function operation data. The instrumentation module can also maintain an instrumented function call stack (190) for each application thread. A sampling module (140) is included on the server. The sampling module can sample application threads of the server-side application to obtain sampled function operation data. The sampling module can sample application threads based on at least one of an age of a timestamp obtained through instrumentation and a determination of which threads are executing server requests based on emptiness of the stack. |
