Upstart uses job definition files in /etc/init to define on what events a service should be started. So, while the system is booting, upstart processes various events, and then can start multiple services in parallel. This allows them to fully utilize the resources of the system, for instance, by starting a disk-bound service up while another CPU-bound service runs, or while the network is waiting for a dynamic IP address to be assigned.
Upstart uses job definition files in /etc/init to define on what events a service should be started. So, while the system is booting, upstart processes various events, and then can start multiple services in parallel. This allows them to fully utilize the resources of the system, for instance, by starting a disk-bound service up while another CPU-bound service runs, or while the network is waiting for a dynamic IP address to be assigned.
很好，我也是遇到这个问题，难得能认真思考和自己动手，喜欢你的文章。
希望能多把遇到的问题用中文表述，虽然也能看英文，还是比较喜欢看中文。
博客是中英双语的，除了给老外看的文章会中英文两个版本都写，其它一般就写个中文的咯~~~
PS：你也折腾过Android上的Linux哈~~~