Database performance problem detection method oriented to I/O concurrency

The invention discloses an I/O concurrency-oriented database performance problem detection method, and aims to effectively detect the problem of performance discomfort between a database and hardware equipment. According to the technical scheme, the method comprises the following steps: constructing a performance discomfort detection system consisting of an I/O system call identification module, an I/O configuration item identification module, a test sample generation module and a discomfort detection module; the I/O system call identification module merges I/O related system calls and deletes repeated elements to obtain an I/O related system call set; the I/O configuration item identification module is used for screening out I/O related configuration items in the software to be tested by adopting a taint analysis method; the test sample generation module generates a test sample; and the unfit detection module executes the test sample, collects runtime information and judges whether an unfit phenomenon exists