Information system performance full-link analysis system and method thereof

The invention relates to an information system performance full-link analysis system and method. In the system, a database end and an application end are respectively connected with corresponding performance management modules, the two performance management modules are both connected to a data acquisition unit, the data acquisition unit is sequentially connected with an identifier analysis unit and an analysis unit, and the application end is used for carrying out dynamic grading identification on database statements; the database is used for executing database statements from the application end; the data acquisition unit is used for acquiring database performance data and application performance data from the two performance management modules; the identifier analysis unit is used for analyzing and recording identifiers of all levels in the collected data; and the analysis unit associates the execution information of the application end and the database end according to the identifiers of all levels output