在软件开发这样的复杂任务环境中上下文切换也是个问题。
Context switching in a complex task environment like software development is a major problem.
由于任意工作量的一个线程或进程的上下文切换涉及到的开销较大，小粒度级的系统往往效率低下且遭遇低性能问题。
Due to the overhead involved in context switching to a thread or process for any amount of work, systems with small-scope granularity are often inefficient and suffer from low performance.
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