In practice, buffering may occur at various other levels, such as on the hard disk itself, the controller, or the kernel disk drive device driver, so ours may not make much of a difference.

实际上，缓冲可能发生在其它不同的级别，例如硬盘本身、控制器或内核磁盘驱动设备驱动程序，所以我们的工作可能对性能影响不大。

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You can get soft real-time performance from the standard kernel or, with a little more work (kernel patch), you can build hard real-time applications.

从标准内核中您可以实现软实时功能，再执行一些额外的工作(内核补丁)您就可以构建硬实时应用程序。

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Finally, the Linux kernel provides its own means for real time, both soft and hard.

最后，Linux内核提供了自己的实时方法，包括软实时和硬实时。

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But part of what gets us through tough times is music, the arts, the ability to capture that essential kernel of ourselves, that part of us that sings even when times are hard.

WHITEHOUSE: President Obama Honors Paul McCartney