有很多计算方式可以根据你的身高，体重，还有活动系数给你一个基础代谢率。那就是，你每天所需要的热量。

There are many calculators available that take your weight, height and level of activity and give you a fairly accurate idea of your daily calorie need.

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首先测量当前的磁盘活动，然后将典型用户与我们的测试中的工作负载进行对比，从而得出一个比例系数。

Measuring the current disk activity taking place will be the starting place in working out a scaling factor by comparing your typical user with the workloads in our tests.

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因此，技巧就在于将典型用户活动与本系列第一、第二部分描述的活动进行对比，并找到一个大致的比例系数。

So the trick is to compare the activity of your typical user with the activity described in the tests in part 1 and 2 of this series, and work out a rough scaling factor.

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