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1、尊敬的商业总会、监理和评测单位:我方在商务平台项目“软件需求功能说明书”第88页“性能需求”中指出“查询返回速度在3秒内” 是指应用程序收到请求后的响应时间，而不是特指加上网络传输时间后的用户体验时间。而实际上用户体 验时间由应用程序响应时间、网络传输时间以及浏览器渲染时间等组成，后两者可以称为等待时间。鉴于 此，用户体验时间在很大程度上受到等待时间，特别是其中网络因素的影响。尤其当应用程序部署在互联 网环境中时，由于用户接入互联网机制的不同、接入ISP的不同以及服务器的ISP的不同等诸多的随机因 素，都有可能直接影响着网络传输的速度。概括说，由于用户本身所处的网络环境以及服务器本身所处的 网
2、络环境，直接影响着网络传输的速度。而它们最终影响了用户体验时间。下面做一个测试:C：Documents and Settingsqxpping 163 .comPinging 163.cam 220.181.8.201 with 32 bytes of data：Reply fromReply fromReply fromReply from220.181.8.201：220.181.8.201：220.181.8.201：220.181.8.201：bytes=32bytes=32bytes=32bytes=32time=44iis TTL=245time=95iis TTL=245time
3、=167ms TTL=245time=213ms TTL=245Ping statistics for 220.181.8.201:Packets: Sent = 4, Received = 4, Lost = 0 , Approximate round trip times in milli-seconds:Minimum = 44ms, Maximum = 213113, Auerage = 129ms可以看到，ping 163服务器时平均的响应时间是129ms，最大响应时间为213ms。下面是对的测试：C： Documents and Settingsqxpping chinaggcc
4、_Pinging 121.33.199.2211 uith 32 bytes of data：Replyfrom121.33.199.221：bytes=32time=456msTTL=57Replyfrom121.33.199.221：bytes=32time=269msTTL=57Replyfrom121.33.199.221：bytes=32time=368msTTL=57Replyfrom121.33.199.221：bytes=32time=163msTTL=57Ping statistics for 121.33.199.221:Packets: Sent = 4, Receiu
5、ed = 4, Lost = 0 , Approximate round trip times in milli-seconds:Minimum = 163ms, Maximum = 456ms, Auerage = 314ms平均响应时间是314ms，是163服务器的2.43倍，这是单纯的网络速度测试，由此可见网络因素对响应时 间的影响非常大。下面是对亚残官方网站服务器的测试：C：Documents and Settingsqxpping Pinging 121.14.228.43 viith 32 bytes of data：Repli/Repli/Repli/Repli/FromFro
6、mFromFrom121.14.228.43：121.14.228.43：121.14.228.43：121.14.228.43：bytes=32bytes=32bytes=32bytes=32time=141ms TTL=54 time=18nis TTL=54 time=153ms time=324msTTL=54TTL=54Ping statistics For 121.14.228.43:,Packets: Sent = 4, Receiued = 4, Lost = 0 Approximate round trip times in milli-seconds:Minimum = 1
7、8ms, Maximum = 324ms, fiuerage = 159ms可以看到，它的平均响应时间只有159ms。 下面是又一次随机的商会服务器测试：C： Documents and Settingsqxpping -tPinging 59.37.71.88 with 32 bytes of dataReplijfrom59.37.71.88bytes32t ime=1052iisTTL=56Replijfrom59.37.71.88bytes32t ime=1133iisTTL=56Replijfrom59.37.71.88bytes32t ime=1274iisTTL=56Repl
8、ijfrom59.37.71.88bytes32t ime=1013iisTTL=56Replijfrom59.37.71.88bytes32t ime=1100iisTTL=56Replijfrom59.37.71.88bytes32t ime=685insTTL=56Replijfrom59.37.71.88bytes32t ime=886insTTL=56Replijfrom59.37.71.88bytes32t ime=1253iisTTL=56Replijfrom59.37.71.88bytes32t ime=1057iisTTL=56Replijfrom59.37.71.88byt
9、es32t ime=728insTTL=56Replijfrom59.37.71.88bytes32t ime=935insTTL=56Replijfrom59.37.71.88bytes32t ime=584insTTL=56Request timed out.Replijfrom59.37.71.88bytes32t ime=836insTTL=56Replijfrom59.37.71.88bytes32time=1073msTTL=56Replijfrom59.37.71.88bytes32t ime=1093iisTTL=56ReplFfrom59.37.71.88bytes32t i
10、me=603insTTL=56ReplFfrom59.37.71.88bytes32t ime=1158iisTTL=56ReplFfrom59.37.71.88bytes32t ime=615insTTL=56Request timed out.ReplFfrom59.37.71.88bytes32t ime=211insTTL=56ReplFfrom59.37.71.88bytes32t ime=122insTTL=56Repli/from59.37.71.88bytes32t ime=190insTTL=56Repli/from59.37.71.88bytes32time=32iis T
11、TL=56Repli/from59.37.71.88bytes32t ime=287insTTL=56Ping statistics For 59.37.71.88：Packets: Sent = 25, Receiued = 23, Lost = 2 , Approximate round trip times in milli-seconds:Minimum = 32ms, Maximum = 1274ms, fluerage = 779ms Control-C可以看到服务器极不稳定，不但平均响应时间达到779ms，而且有两次请求超时。卜面是对的又一次随机测试:Replv from 121
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