So the subtraction of user input time from total time, namely the "real execution time", can truly reflect the user-perceived performance.
此时程序的“实际执行时间”,即整体执行时间与等待用户响应时间之差,才能够真实地反映用户可察觉的系统处理能力。
Because of these features, the performance that is measured by a testing tool can differ from the performance that is perceived by the user.
由于这些特性的存在,测试工具测试的性能不同于用户预期的性能。
The router can lazily preload modules after the app starts and before the user navigates to them for improved perceived performance.
路由器可以在应用启动之后和用户导航到惰性加载模块之前,预先加载惰性模块,以增强性能。
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