从测试驱动器客户机指标文件收集响应时间数据。
Collect the response time data from the test driver client metrics file.
衡量一个新文件系统的最重要指标就是它的根本性能。
One of the most important attributes used to measure new file systems is their fundamental performance.
这常常是最难实现的指标，因为当文件系统变得庞大并且要求实现高可靠性时，将会以损害性能为代价。
This is also one of the most difficult areas, as when a file system grows to massive sizes and expectations are placed on it to be highly reliable, performance can ultimately suffer.
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