c9429b30_yper_V_VS_Citrix_Xen___My_Blog__Hypervisor_Attributes
[VMware ESXi 5.0] Network traffic shaping, per-VM resource shares, set quality of service priorities for storage and network I/O Lacks similar capabilities [Citrix XenServer 5.6 FP1] Lacks similar capabilities [Hypervisor Attributes] 
Host Resource Management
Comparison between Vmware VS Hyper-V VS Citrix Xen | My Blog
Hypervisor Attributes