Each processor on the CPU has its own CSA (current save area) pointer that points to the MST that is to be used when a thread or interrupt handler is interrupted or swapped due to context switch.
CPU上的每个处理器都拥有自己的CSA(当前保存区)指针，指向当线程或中断处理程序由于上下文切换而被中断或交换时使用的MST。
In such a system, the overhead that it takes for a web server's underlying kernel to switch between each process (to see if they have any work for the CPU to do) becomes a bottleneck.
在这样的系统中，使Web服务器的基本内核在各个进程之间切换(以便确定它们是否有需要CPU处理的工作)所需的开销将成为瓶颈。
The hardness of this approach depends mostly on the CPU interrupt structure and context-switch hardware support.
这种方法的硬度主要取决于CPU中断结构和环境转换的硬件支持。
The dynamic governors, which I discuss later in this article, can switch between CPU frequencies based on CPU utilization to allow for power savings while not sacrificing performance.
动态调控器(详见下文)可以根据CPU利用率来调整cpu频率，从而有助于节省电能，而不会牺牲性能。
In most practical application, context switch doesn't happen at some time tick, so sometime the execution of timer ISR is useless and wastes CPU time.
在实际应用中，并不是每个时钟节拍都有任务调度，所以有很多时钟中断服务程序的工作是多余的，浪费了CPU资源。
In most practical application, context switch doesn't happen at some time tick, so sometime the execution of timer ISR is useless and wastes CPU time.
在实际应用中，并不是每个时钟节拍都有任务调度，所以有很多时钟中断服务程序的工作是多余的，浪费了CPU资源。
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