是否有可能请你更新一下系统信息？

Would it be possible to update your information?

youdao

现在内核已经使用新系统调用完成更新了，接下来看一下从用户空间应用程序中使用这些系统调用需要执行的操作。

Now that kernel is updated with a few new system calls, let's look at what's necessary to use them from a user-space application.

youdao

思考一下前面所说的 GUI 控制面板；在 Unix 中编写这个程序时，一种高性能的做法是只在 select() 系统调用检测到到达的数据时才更新显示。

Think of the GUI control panel; a high-performance way to program this with Unix is to update the display only when the select() system call detects arriving data.

youdao