task_tick：该函数通常调用自timetick函数；它可能引起进程切换。
Task_tick: This function is mostly called from time tick functions; it might lead to process switch.
其中对进程调度进行优化的方法又分为了惰性调度以及直接进程切换两个方面。
The approaches for the optimization of the scheduling algorithm consist of lazy scheduling and direct context switching.
因为进程切换很频繁，所以减小花在保存和装载硬件上下文上的时间就变得很重要了。
Because process switches occur quite often, it is important to minimize the time spent in saving and loading hardware contexts.
然而在中断处理和进程切换之间有一个关键的区别：由中断或异常处理执行的代码不在进程中。
But there is a key difference between interrupt handling and process switching: the code executed by an interrupt or by an exception handler is not a process.
将控制台输出切换到测试服务器进程。
线程切换可以在单个进程内部发生，也可以跨进程发生。
Thread switches can occur either inside of a single process or across processes.
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.
有了微线程，我们就可能在目前中等性能的PC 机上运行数以万计的并行进程，还可以每秒钟几十万次地在上下文之间切换。
With microthreads, it is possible to run tens of thousands of parallel processes on a moderately capable modern PC, and to switch between contexts hundreds of thousands of times every second.
通过添加代码来同时在单个进程中管理多个用户的查询缓存，不需要挂起进程，而可以进行切换来为另一个用户执行工作。
By adding code to manage query caches for multiple users at the same time in a single process, the process need not be suspended, but can be switched to perform work for another user.
更糟的是，SSD必须内部切换数据以便尽可能减低在称为垃圾收集或耗损均衡的进程中引入错误的可能。
To make matters worse, the SSD must internally shift data to minimize the introduction of errors in a process called garbage collection or wear-leveling.
如果缺陷不在进程之中，那么由于开发员的人为重启操作，每项缺陷的任务切换会产生更多的消耗量。
If the defect is not impeding progress, it could be argued that task-switching for each defect generates more waste due to intellectual restart time for developers.
现代操作系统通常在进程调度方面表现得很出色，从而最大程度减少了上下文切换。
Modern operating systems generally do an excellent job of process scheduling, which minimizes context switching.
您可以在不同的进程之间切换控制台视图，显示应用程序客户机的输出和服务器进程。
You can switch the console view between different processes, showing output for both the application client, as well as the server process.
所以为了能够使用能力并保证系统安全，根进程必须能够不可逆转地将它的uid切换到非0，同时保留一些能力。
So in order for capabilities to be useful, a root process must be able to irrevocably switch its uid to non-zero while keeping a few capabilities.
Huffman建议将类似的进程集中在一台机器或一组机器上，这样可以避免频繁的上下文切换，减少资源消耗。
Huffman suggests grouping similar processes together on the same machine or group of machines to avoid context switching all the time which consumes resources.
如果进程将它的有效uid从0切换到非 0，那么它的有效能力集被清空。
If a process switches its effective uid from 0 to non-0, then its effective capability set is cleared.
如果进程将它的真实、有效或保存的uid从至少一个0切换到全部非0，那么允许能力集和有效能力集都被清空。
If a process switches its real, effective, or saved uids from at least one being 0 to all being non-zero, then both the permitted and effective capabilities are cleared.
控制台将切换到JUnitTestRunner进程，而服务器控制台输出将是不可见的。
The console will switch to the JUnit TestRunner process and the server console output will not be visible.
拥有UNIX或Linux机器上所有权限的根用户试图切换身份到db 2实例用户(例如，db2ins95)并篡改某些db 2进程。
A root user who has all permissions on a UNIX or Linux machine tries to switch his identity to a db2 instance user (for example, db2ins95) and tamper with some db2 processes.
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。
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.
操作系统通常可以在相同进程中的不同线程之间更快速地切换(上下文切换)，而不是在不同进程之间切换。
Operating systems can generally switch (context switching) faster between threads of the same process than between different process.
指定角色mgr_r中的进程可以切换到角色cashier_r中的有效上下文。
Specifying that a process in role mgr_r may switch to a valid context in role cashier_r. But there is no line.
tcp_usrreq函数中的切换调用 in_setpeeraddr()，后者从协议控制块复制外来IP地址和外来端口号，并将其返回到服务器进程。
The switch in the tcp_usrreq function calls in_setpeeraddr(), which copies the foreign IP address and foreign port number from the protocol control block and returns these to the server process.
可以通过在ha4机器上杀死名为 Loadl_negotiator 的中央管理器进程来测试失效切换。
You can test failover by killing the central manager process called Loadl_negotiator on the ha4 machine.
如果您可以访问该系统，但由于某种原因而无法终止损害系统的进程，可以切换到单用户模式，这将停止所有非关键的服务以及任何用户运行的进程。
If you can access the system but can't kill the offending process for whatever reason, shutting down to single-user mode stops all non-essential services and any user-run processes.
如果焦点在输入读取之间发生切换，则终止xev进程的旧通道并启动新通道。
If the focus has changed between input reads, the old pipe to the xev process is killed and a new one started.
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%。
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.
Ubuntu新的登录系统使不同用户进程间的切换变得非常容易。
Ubuntu's new login manager makes switching between sessions super easy.
内核为系统中所有的进程都维护了一个context结构体，以及要在不同进程之间有效进行上下文切换所需要的信息。
The kernel maintains a context structure for all the processes in the system, information it needs for effective context switching among different processes.
内核为系统中所有的进程都维护了一个context结构体，以及要在不同进程之间有效进行上下文切换所需要的信息。
The kernel maintains a context structure for all the processes in the system, information it needs for effective context switching among different processes.
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