Naïvely removing and recreating the DOM every time would destroy its internal state, lose focus, and cause terrible performance problems in larger applications.
直接调用此构造函数可用动态创建函数,但会遭遇来自eval的安全问题和相对较小的性能问题。
Calling the constructor directly can create functions dynamically, but suffers from security and performance issues similar to eval.
For example, the airplane manufacturer Bombardier's C-Series has been heavily outfitted with sensors to immediately detect engine performance problems.
PerfView是一个性能分析工具,可以帮助隔离的CPU和内存相关的性能问题。
PerfView is a performance-analysis tool that helps isolate CPU- and memory-related performance issues.
In 2012, Google announced a new experimental protocol, QUIC, intended again to address performance issues with existing HTTP/1.1 and HTTP/2.
PerfView是一个性能分析工具,有助于隔离CPU和内存相关的性能问题。
PerfView is a performance-analysis tool that helps isolate CPU- and memory-related performance issues.
与网站的性能问题(对网站的第一个请求可能需要编译网站,这可能会导致延迟。
Performance Issue with WebsiteThe first request to the web site might require the site to be compiled, which can result in a delay.
但对于大多数典型应用程序,用户几乎感觉不到这个特定的性能问题。
(For most typical applications, though, this specific performance issue is barely felt by the user.).
新解决方案将对用户体验和应用程序行为的改进可见性与影响最终用户体验的性能问题的根本原因分析相结合。
The new solution combines improved visibility into user experience and application behavior with root cause analysis of performance issues impacting the end user experience.
To learn more about these and other memory-related performance issues watch the Build 2013 video Native Code Performance and Memory: The Elephant in the CPU.
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