The embodiment of the invention provides an application performance intelligent diagnosis method and
system, and belongs to the technical field of application performance detection. The method comprises the following steps: constructing a standardized
data set based on performance data collected by an
application performance management tool; inputting the standardized
data set into a tool capability graph constructed by a model context protocol, and establishing a mapping index from data to a tool; analyzing performance abnormity or a diagnosis request triggered by the standardized
data set based on a large
language model, selecting and calling a
diagnosis tool according to the mapping index, and executing a dynamic diagnosis plan to obtain an analysis result; multiple rounds of reasoning and confidence evaluation are carried out based on the analysis result, the tool calling sequence is adjusted according to the calling characteristics, and the diagnosis plan is updated until a
root cause diagnosis conclusion is output; and generating a diagnosis evidence packet based on the
root cause diagnosis conclusion, and outputting the diagnosis evidence packet as a final diagnosis result. According to the scheme of the invention, high-precision, traceable and self-
adaptive evolution performance
root cause intelligent identification is realized in a complex application environment.