You use hosted mode during development; it's an emulator with which you can simulate both client and server code at once, dramatically simplifying deployment while you are developing.

在开发过程中使用的是托管模式，它是一个模拟器，通过它可以同时模拟客户机和服务器代码，在开发时使部署大为简化。

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It compares the performance of web server with and without the payment gateway emulator and then analyzes its performance with the change of test mode and database size.

对加入支付网关模拟器前后的性能以及改变测试模式、数据库尺寸后的性能进行了比较分析。

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