This gives them context, and it shortens the time necessary to switch from one task to another.

这赋予他们一定的背景，并缩短了从一项任务转向另一项任务所需要的时间。

youdao

With modern Linux, though, a context switch between distinct processes might take only 15% more time than the corresponding context switch between same-process threads.

然而，在现代的Linux中，不同进程之间的上下文切换所花的时间只比同一进程的线程之间相应的上下文切换多15%。

youdao

JRuby can switch context at almost any time.

JRuby几乎可以随时切换上下文。

youdao