One of the solutions is to attach the context data to the events content, which usually makes messages larger, which usually leads to increased network usage and performance degradation.
其中一种解决方案是将上下文数据附加到事件内容中，这会导致消息的体积增大，因而导致网络流量上升和性能下降。
Strictly speaking, these projects represent a cost of bad data in addition to degradation of business performance.
严格地说，这些项目反映了除业务性能降低之外还有劣质数据的损失。
Once the initial rules and dictionaries have been built, it is common to see some performance degradation when the rules are applied to data from some other source.
建立了初始规则和字典之后，在将规则应用于来自其他一些来源的数据时常常会体验到一定的性能下降。
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