The most basic inputs to any systems optimization are patterns of actual usage.

任何系统优化最基本的输入都是实际使用率模式。

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Apart from keeping track of disk usage, the quota system empowers systems administrators to specify a soft limit of disk usage for any user or group.

除了跟踪磁盘使用量之外，系统管理员还可以通过配额系统为任何用户或组指定磁盘使用量的软限制。

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According with the authors the usage of such "green" systems allow to improve the health of their users, the microclimate inside the house and the ecological environment on the planet as a whole.

根据设计师理念，这种“绿色”系统的使用，把用户的健康，屋内的小气候以及整个地球的生态环境的改善融合为一体。

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Customers with smart thermostats reduced their usage by 27%, and customers with gateway systems, which adjust the electricity use of multiple appliances, reduced their usage by 43% during the peak hours.

FORBES: What Would You Pay To Stay Cool?

Although forward-looking companies like Facebook and Google have implemented better cooling systems and software that saves on wasted power, most corporate datacenters, which constitute the bulk of total usage, are woefully behind in putting more efficient systems into practice.

FORBES: Taming Datacenter Power Usage

The answer is that employees and enterprises are not able to use existing sharing technologies in part because of the software design and usage constraints, in part because the systems are not suited to the extended enterprise that many people now work in.

FORBES: Microsoft's SharePoint Social Business Strategy Will Sell But It Will Not Be Sweet