Online task unloading method for resource sharing perception

The invention discloses an online task unloading method for resource sharing perception. The method comprises the following steps: sequencing sites to obtain a site sequence; the users are pre-allocated to the sites by solving the modeled user allocation problem, and the optimization objective of the user allocation problem is to meet the delay requirement of each user and maximize the opportunity of resource sharing; and for each site, the server of the task to be loaded is determined for the user task in the obtained user set by solving the modeled server loading problem, and the optimization objective of the server loading problem is to load the task by using the least server aiming at the user pre-allocated to each site and meet the resource capacity limitation of the server. By means of the task unloading method and device, the task unloading problem of the multiple instances of the single application can be solved, the delay requirement of each user in the instances can be met, and the cost of the used