通过将数据库作为数据处理引擎，我们可以避免其中大部分开销。
By using the database as the data processing engine, we avoid most of this overhead.
（注意，不要为生产代码启用这种开销很大的处理）。
Note that this overhead processing is not enabled for the production code.
由于巨大的信息处理开销，请求响应的时间会变长。
Request turnaround time slows down due to the huge information processing overhead.
如果开销值较高，则应用程序可用的处理时间就不足。
If the overhead is high, not enough processing time will be available for the application.
性能：安全性处理会增加多少开销？
Performance: How much overhead does the security handling add?
处理每个病例的开销可能达到数十万英镑。
The cost of managing each case can stretch to several hundred thousand pounds.
该扩展处理创建SOAP信封的开销。
The overhead of creating a SOAP envelope is handled by the extension.
交换是一项开销非常高的处理，并且将明显地降低系统的性能。
Swapping is an expensive process and will significantly degrade your system.
降低处理更改的系统开销。
降低处理更改的系统开销。
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