如前面部分所描述的，在部署任何一个PPM工具之前，对现有环境(系统、过程等)进行评估是很重要的。
As described in the previous section, it is important to do an assessment of your existing environment (systems, processes, etc.) before deploying any PPM tool.
前面部分描述了不久前努力的一些结果，就是以低成本计算基础设施在全球数字鸿沟上建桥。
Some of the recent efforts to bridge the global digital divide with low-cost computing infrastructure were described in the previous sections.
在本文前面部分，我提到了对经常遍历代码路径的一些小改善可以获得较大的整体性能收益。
Earlier in the article, I mentioned that small improvements to frequently traversed code paths can lead to big, overall performance gains.
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