监测多个程序是否失去响应，如果失去响应则强行停止其进程然后再次启动。

用于保持一个经常出现为止错误的程序长期正常运行-Loss of multiple procedures to monitor response, if they lose the response is forced to stop its process and then start again. Often used to maintain a long-term until the normal operation of the program error