Note: This example USES the standard CFS (as invoked through schedule via linsched_run_sim).
注意：此示例使用标准CFS(如通过linsched _ run_sim调用schedule )。
Note that CFS has no real notion of time slices for preemption, because the preemption time is variable.
注意CFS没有真正的时间切片概念用于抢占，因为抢占时间是可变的。
The CFS scheduling module uses it for group scheduling, while the scheduling module for a real-time task does not use it.
CFS调度模块使用它进行组调度，而用于实时任务的调度模块则不会使用这个函数。
Instead of all tasks being treated fairly uniformly, CFS introduces groups to account for this behavior.
不是所有任务都会被统一公平对待，CFS引入了组来处理这种行为。
Monday's paper is the latest in a series of reports about a possible link between CFS and a virus.
周一的报告是一系列有关慢性疲劳综合症与病毒可能联系的研究报告中的最新一份。
Thus there is disagreement in the medical community as to whether CFS is a distinct disease.
因此医学界对于慢性疲劳综合症是否为一种确定的疾病尚存争论。
CFS is based on the idea that all processes should be given a fair amount of the available processors.
CFS是基于所有过程都应该给予相当数量的可用处理器这一理念的。
A better understanding of CFS is surely needed.
更好地理解慢劳症是确实有必要的。
Let's dig into the CFS to see how it operates at a high level.
我们来剖析一下CFS，从较高的层次上看看它是如何运行的。
CFS operates at the user level, communicating with the kernel through Network File System (NFS).
CFS工作于用户级，通过网络文件系统(NFS)与内核进行通信。
It has a 10 gigabit Ethernet card for high-speed, low-latency communication between members and CFs.
它有一个 10 千兆以太网卡用于成员与 CF之间的高速低延迟通信。
The main idea behind the CFS is to maintain balance (fairness) in providing processor time to tasks.
CFS背后的主要想法是维护为任务提供处理器时间方面的平衡(公平性)。
Time slices in CFS are of variable length and are decided dynamically.
CFS中的时间片具有可变的长度并且动态确定。
CFS is characterized by debilitating fatigue and chronic pain, but there are no specific treatments, and the diagnosis is often made by ruling out other diseases.
慢性疲劳综合症的特点是感觉衰弱疲劳并伴有长期疼痛，但没有有效的治疗方法，其确诊通常也是通过排除其他疾病。
LAST October a discovery was made that brought hope to millions of sufferers from chronic fatigue syndrome (CFS).
去年十月，一项发现给数百万的慢性疲劳综合症(CFS)患者带去了希望。
But, as doctors are often quick to point out, CFS is real and disabling no matter the cause.
但是医生们很快指出不管什么原因造成CFS，它的症状是真实存在的并会导致患者伤残。
Group scheduling enables CFS to be fair to users a and b, rather than being fair to all 50 jobs running in the system.
组调度使CFS能够对用户a和用户B进行公平调度，而不是对系统中运行的50个作业进行公平调度。
Also introduced with CFS is the idea of scheduling classes (recall from Figure 2).
与CFS一起引入的是调度类概念(可以回顾图2)。
Researchers at King’s College, London, are exploring the causes of Chronic Fatigue Syndrome (CFS).
伦敦国王学院的研究人员正探索慢性疲劳综合症（慢劳症）的病因。
More than just feeling a little tired, CFS patients are often bed-ridden for days at a time.
患有此症的人不是仅仅感到一点疲劳，而是一次要卧床休息好几天。
And indeed, CFS advocates on this side of the Atlantic immediately raised that concern.
果然，大西洋这一边的CFS关注者立刻提出了疑惑。
Fix: While there's no quick fix for CFS or fibromyalgia, patients often benefit from changing their daily schedule, learning better sleep habits, and starting a gentle exercise program.
疗法：慢性疲劳综合症或纤维组织肌痛没有速效药，患者通过改变日常活动，养成高质量的睡眠习惯，进行一些适度的锻炼活动，成效往往不错。
While Thursday's paper doesn't demonstrate conclusively that XMRV is a cause of CFS, additional unpublished data make it a very strong possibility.
虽然周四发表的论文并未决定性地显示出XMRV病毒是慢性疲劳综合症的起因，但从未公布的其他数据看，这种可能性很高。
CFS doesn't use priorities directly but instead USES them as a decay factor for the time a task is permitted to execute.
CFS不直接使用优先级而是将其用作允许任务执行的时间的衰减系数。
It seems likely that the causes of CFS will continue to be a subject of controversy for a while yet.
似乎导致CFS的原因在短时间内将继续是争论的主题。
The scheduling function is quite simple when it comes to the CFS portion.
就CFS部分而言，调度函数非常简单。
A study showing a strong viral association with CFS could change that equation.
一项研究表明慢性疲劳综合症与一种强有力的病毒有关，这可能改变争论的形势。
Another interesting aspect of CFS is the concept of group scheduling (introduced with the 2.6.24 kernel).
CFS另一个有趣的地方是组调度概念(在2.6.24内核中引入)。
But because not all tasks are runnable, you won't find any CFS-related fields in task_struct.
但是因为不是所有任务都是可运行的，您在task_struct中不会发现任何与CFS相关的字段。
RSDL and the vanilla scheduler are affected by the array-switching artifact, while CFS is not.
RSDL和vanilla调度程序会受到数组切换工件的影响，而CFS不会。
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