IE浏览器中的ClientBeginRequest和ClientDoneRequest之间的长时间延迟

Question

我的Web应用程序在IE浏览器中加载速度慢。试图用Fiddler测试 - 我们发现ClientBeginRequest和ClientDoneRequest之间有很长的延迟请参考下面的fiddler测试输出 -

在IE浏览器中： -

ClientConnected:    08:04:22.609
**ClientBeginRequest:   08:04:23.841**
GotRequestHeaders:  08:04:23.841
**ClientDoneRequest:    08:04:26.781**
Determine Gateway:  0ms
DNS Lookup:         0ms
TCP/IP Connect: 0ms
HTTPS Handshake:    0ms
ServerConnected:    08:04:22.618
FiddlerBeginRequest:    08:04:26.781
ServerGotRequest:   08:04:26.781
ServerBeginResponse:    08:04:26.904
GotResponseHeaders: 08:04:26.904
ServerDoneResponse: 08:04:26.904
ClientBeginResponse:    08:04:26.904
ClientDoneResponse: 08:04:26.904

    Overall Elapsed:    0:00:03.063

在IE F12控制台中也可以看到“开始时间”

为什么IE浏览器中ClientBeginRequest和ClientDoneRequest之间存在长时间的延迟以及如何改善这一点，与Chrome结果相比，总体经过时间非常长（参见下文）。

谷歌浏览器： -

ClientConnected:    08:03:38.089
ClientBeginRequest: 08:03:39.186
GotRequestHeaders:  08:03:39.186
ClientDoneRequest:  08:03:39.186
Determine Gateway:  0ms
DNS Lookup:         0ms
TCP/IP Connect: 0ms
HTTPS Handshake:    0ms
ServerConnected:    08:03:38.097
FiddlerBeginRequest:    08:03:39.187
ServerGotRequest:   08:03:39.187
ServerBeginResponse:    08:03:39.186
GotResponseHeaders: 08:03:39.350
ServerDoneResponse: 08:03:39.350
ClientBeginResponse:    08:03:39.350
ClientDoneResponse: 08:03:39.350