The server memory is 8G, and the usage rate when running the program reaches 90%-95%. Is it too high and affects the running speed of the program?

The server memory is 8G, which is OK, mainly depends on the resource requirements of the program operation. The general web should be enough
. For the usual maintenance, it is best to ensure that the resource usage is 60%-80% and reserve a part for the system buffer to prevent all The resources are occupied by the process and the system cannot perform processing tasks, resulting in stuck, crashed, and the program is forced to quit.
As for whether the impact does not affect the program, it depends on the program's demand for resources. It is best to first check the reasons for the high resources. Some of the reasons are caused by the high resources of the program itself.