In addition, when we found the ceiling in a test scenario, we realized that often reaching or exceeding a recommended maximum value is really only a concern when you look at the entire system.
By ceiling, we mean the highest amount or maximum value of, for example, memory you can use and still make practical use of the system.
所谓上限，我们指的是您可以使用并且目前为止实际用于系统的内存的最大值或最高使用量。
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If the debt ceiling is not raised by Tuesday, Americans could face rising interest rates and the value of the U. s. dollar may drop compared to other currencies, among other problems.