DATA SHARING METHOD AND SYSTEM, AND DEVICE AND STORAGE MEDIUM

Provided in the embodiments of the present application are a data sharing method and system, and a device and a storage medium. In the embodiments of the present application, a shared memory window is allocated on a host to virtual machines, which have a data sharing relationship, and shared data of a plurality of virtual machines is stored by means of a local shared memory window, so as to realize local access to the shared data, thereby shortening an access path of the shared data, and improving the access performance of the shared data. In addition, the shared memory window is readable but non-writable to the virtual machines, a target process module is additionally provided on the host, and the target process module is uniformly responsible for the writing-in of the shared data, such that the problem of a possible data error caused by the plurality of virtual machines performing a write operation on the shared memory window at the same time can be avoided. Moreover, any modification to the shared data can