VMware View 与Citrix XenDesktop对决之用户体验篇
2011-04-24 19:37
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看看真实的VMware View 与Citrix XenDesktop对比。
用户体验作为虚拟桌面的关键因素,看看VMware View如何立于不败之地。
对于测试中暴露的差异,您也许会觉得困惑。其实当您了解完下面这些,就全明白了。
Citrix的XenDesktop使用的是PortICA协议,而不是XenApp的ICA协议(因为ICA是基于Terminal Server,PortICA基于XP。两者底层架构相差很大,必须重新实现)。
XenDesktop的表现其实是不如XenApp的。不过很多人被混淆了。把XenApp的光环也戴在了XenDesktop头上。
下面是二篇英文文章比较PortICA与ICA的差别。
Why ICA is not ICA
http://www.ervik.as/index.php/citrix-mainmenu/xendesktop/1248-why-ica-is-not-ica
【关键摘要】What does this mean for XenDesktop? Well, of course the ICA stack in XenDesktop inherits heavily from XenApp (Jeff has blogged on this extensively, and Brian has a more detailed analysis too). But the underlying infrastructure is very different: XenApp builds on top of Terminal Services, while XenDesktop uses basic OS APIs. This means that some XenApp features that are intricately linked to the Terminal Services platform, like shadowing, are by no means a straight: "just recompile this for Windows Vista and it'll work". Instead, we had to re-code some features from scratch in a way that's different from, but compatible with XenApp. All this takes time, and that's the main reason we shipped the first version of XenDesktop with some of the "ICA features" missing.
PortICA: The same, but different
http://www.brianmadden.com/blogs/brianmadden/archive/2008/04/14/accessing-windows-xp-and-vista-via-citrix-xendesktop-ica-portica-how-does-this-really-work.aspx
用户体验作为虚拟桌面的关键因素,看看VMware View如何立于不败之地。
对于测试中暴露的差异,您也许会觉得困惑。其实当您了解完下面这些,就全明白了。
Citrix的XenDesktop使用的是PortICA协议,而不是XenApp的ICA协议(因为ICA是基于Terminal Server,PortICA基于XP。两者底层架构相差很大,必须重新实现)。
XenDesktop的表现其实是不如XenApp的。不过很多人被混淆了。把XenApp的光环也戴在了XenDesktop头上。
下面是二篇英文文章比较PortICA与ICA的差别。
Why ICA is not ICA
http://www.ervik.as/index.php/citrix-mainmenu/xendesktop/1248-why-ica-is-not-ica
【关键摘要】What does this mean for XenDesktop? Well, of course the ICA stack in XenDesktop inherits heavily from XenApp (Jeff has blogged on this extensively, and Brian has a more detailed analysis too). But the underlying infrastructure is very different: XenApp builds on top of Terminal Services, while XenDesktop uses basic OS APIs. This means that some XenApp features that are intricately linked to the Terminal Services platform, like shadowing, are by no means a straight: "just recompile this for Windows Vista and it'll work". Instead, we had to re-code some features from scratch in a way that's different from, but compatible with XenApp. All this takes time, and that's the main reason we shipped the first version of XenDesktop with some of the "ICA features" missing.
PortICA: The same, but different
http://www.brianmadden.com/blogs/brianmadden/archive/2008/04/14/accessing-windows-xp-and-vista-via-citrix-xendesktop-ica-portica-how-does-this-really-work.aspx
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