But when you play back the performance test to generate load with many simulated users, you may not want the same URLs and request parameters played back.
但是当您回放性能测试来模拟用户去产生装载时，您可能不希望使用相同的URL和请求参数来回放。
Rational Performance Tester also provides an automated "data pooling" capability that varies the test data set used by each simulated user.
Rational Performance Tester同时还提供了一种自动化的“数据池”特性，它可以改变每一个模拟用户使用的测试数据设置。
Each test was run with 1,000, 2,000, 3,000, and 4,000 simulated users, and performance information was collected at each data point. See figure 7.
每个测试都采用1,000、2,000、3,000和4,000个用户运行，在每个数据点都收集性能数据，见图7。
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