第二个假设是，我们确实能够感知一切，但是大脑会对信息进行分类，而任何与我们专注的事情无关的信息都会被归类为低优先级信息。
The second hypothesis is that we do perceive everything, but the brain categorizes the information, and whatever is not relevant to what we are concentrating on gets treated as low priority.
中优先级和低优先级码流可支持室外固定接收。
The Medium and Low Priority streams can support fixed outdoor reception.
“高优先级线程”会优先于“低优先级线程”执行。
Threads with higher priority are executed in preference to threads with lower priority.
优先级反转将延迟低优先级线程和高优先级线程的执行。
The inversion of priorities delays both the low- and the high-priority thread from making progress.
在极端情况下，低优先级队列几乎不会处理并且本配不到一点带宽。
In extreme cases, the lower priority queues rarely were serviced and effectively were starved of bandwidth.
这意味着当高优先级的任务准备运行时低优先级的任务就不能执行了。
This means a lower-priority task won't execute while a higher-priority task is ready to run.
用户可以让集群代理以低优先级运行，或者在启动屏幕保护程序时运行。
The user can instruct the cluster agent to run in low priority or run whenever the screen saver is activated.
在这种情况下，低优先级线程和另一个线程都会被提高优先级。
In this case, the low-priority thread and that other thread are boosted.
优先级反转指的是阻塞高优先级线程的锁由低优先级线程持有。
Priority inversion is a condition where a high-priority thread is blocked on a lock held by a low-priority thread.
在尝试任何低优先级同步前，所有高优先级入站连接必须成功完成。
All high priority inbound connections must complete successfully before any lower priority synchronizations are attempted.
基本要求是高层次的并区分优先级(以在低优先级的项目上获得一定的灵活性)。
Requirements are baselined at a high level and prioritized (to gain scope flexibility with low priority items).
最坏的情况是当一个高优先级的任务就绪后直接长(低优先级)任务开始。
The worst case is when a higher priority tasks becomes ready directly after the longest (lower priority) task has started.
气象数据进程负责把收集到的气象数据放到数据总线上，运行不频繁，是低优先级进程。
The meteorological data gathering task ran as an infrequent, low priority thread, and used the information bus to publish its data.
在刚刚描述的场景中，发生锁争用时低优先级的线程以高优先级运行，直至线程释放锁。
In the scenario just described, the low-priority thread runs at high priority when lock contention occurs until the point in time that it releases the lock.
一个优先级系统可以只对“高优先级”线程投入比低优先级线程更多的注意力。
One priority system could simply devote more attention to "high-priority" threads than to low-priority ones.
然后就有可能为低优先级进程获取锁，暂停执行，因为一个高优先级的任务。
Then it becomes possible for a low-priority process to grab a lock and get suspended from executing because of a higher-priority task.
优先级反转是指高优先级的任务被低优先级的任务阻塞了不确定长度的时间。
Priority inversion is the case where a high priority task becomes blocked for an indefinite period by a low priority task.
如果运行的系统支持优先级设置，那么用低优先级来运行耗时比较长的任务是一个好主意。
If you're running a system that supports priorities, it's a good idea to run a long job like this at a low priority.
这个协议可以避免死锁，而且高优先级事务不会被未提交的低优先级事务阻塞。
We show that this protocol is free of deadlock and in addition a high priority transaction is not blocked by uncommitted lower priority transactions.
不是所有的消息都采用推送式通知(如低优先级)，但你可以打开低优先级消息的推送功能。
Not all notices are marked for push notification, but you can turn on push for low priority messages.
在RT系统中必须小心地管理同步，以防止高优先级线程等待低优先级线程的情况发生。
Synchronization must be carefully managed within a RT system to prevent high-priority threads from waiting for lower-priority threads.
锁定一个资源会影响所有低优先级的线程，就算这些线程根本对这个资源没有兴趣。
Locking a resource affects all the threads with lower priority even if not interested to the resource.
然而，ARFM确保低优先级的服务策略的违背程度总是大于高优先级的服务策略的违背程度。
However, ARFM ensures that lower priority service policies are breached by a greater extent than higher priority ones.
这意味着如果低优先级进程进行了系统调用后，高优先级进程必须等到调用结束后才能访问CPU。
This means that if a low-priority process makes a system call, a high-priority process must wait until that call is complete before it can gain access to the CPU.
如果一个高优先级的线程请求低优先级线程持有的锁会造成它在低优先级线程之后等待。
A higher priority thread can wait behind a lower priority thread if the lower priority thread holds a lock for which the higher priority thread is waiting.
优先级继承确保了在高优先级线程需要的资源被低优先级线程占用时，避免发生优先级反转。
Priority inheritance ensures that priority inversion is avoided when a higher-priority thread needs a resource held by a lower-priority thread.
我有什么办法可以设置一个低优先级或不同的调度(或两者)，主线程有更多的CPU时间来运行？
Is there any way I can set a lower priority or a different scheduling (or combination of both) so the main thread has more CPU time to run?
无优先级反转：高优先级的线程不会因中优先级线程正在运行，而被持有其所需锁的低优先级线程阻塞。
No priority inversions: High-priority threads cannot be blocked by low-priority threads holding locks they need because medium-priority threads are running.
无疑会有大量增加的请求以及低优先级的缺陷，无论哪里，只要可能，这些都应当延迟到新的维护项目中。
There will no doubt be large Numbers of enhancement requests and low-priority defects; wherever possible, these should be deferred into a new maintenance project.
当网络负荷超载时，网络枢纽控制器就会通过丢弃一些低优先级的数据，来保证高优先级数据的实时性。
When the network is overloading, the Central network Control Unit can perceive it and dropout some low priorities fluent to keep the real time behavior of high priorities fluent.
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