By Luca Dentella
Citrix XenApp is an software virtualization product that permits clients to connect with their company functions from any machine. XenApp can host functions on important servers and permits clients to have interaction with them remotely or movement and bring them to person units for neighborhood execution.
Citrix XenApp functionality necessities is a pragmatic advisor that gives you directions, most sensible practices, and actual international examples to help you to enhance the functionality of your farm, opting for and fixing attainable bottlenecks and utilizing complex good points together with the recent beneficial properties supplied by means of XenApp 6.5.
Citrix XenApp is usual to convey company purposes to finish clients. This e-book covers the total technique of optimizing a XenApp farm, ranging from the layout part the entire approach to tuning for distant clients and connecting through geographic links.
With your farm in creation, you are going to comprehend what to observe and the way to optimize your farm, in addition to how one can use an open-source software, WANem, to check the applications’ habit with diverse hyperlink stipulations. additionally, you will examine which settings and contours XenApp deals to optimize CPU and reminiscence utilization.
This e-book may help you to avoid or clear up functionality difficulties and make your clients chuffed operating with released purposes.
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Additional info for Citrix XenApp Performance Essentials
Secure Ticket Authority (STA) This section groups counters about the Secure Ticket Authority service. The STA service is included in the XML Broker service and it's used to control access by the Secure Gateway component. [ 34 ] Chapter 2 XenApp on a virtual infrastructure If you're running your servers on a virtual infrastructure and you're experiencing lack of performance, remember to also check the hypervisor's performance counters. It's common that if the hypervisor is under heavy load, you won't see high CPU values in a virtual machine because the hypervisor can't schedule the virtual CPU on a real CPU.
In the next section I'm listing, in my opinion, the most important ones. [ 45 ] Monitoring and Improving Server Performances All the servers The following modifications apply to all the session-host servers in your farm: Paging system components You can prevent system components to be paged to disk with the following registry key: HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management—DisablePagingExecutive = dword:00000001 Power saving Select the maximum performance scheme in both your server BIOS and in Windows Power Plan.
19 ] Designing a Scalable XenApp Infrastructure The boot process in this scenario is performed in the following three steps: 1. The target device requests an IP address from the DHCP server. The response includes the scope options 66 and 67 with the name and the location of the bootstrap file. 2. Using Trivial File Transfer Protocol (TFTP), the target device requests the bootstrap file from the Provisioning Server. This downloads it to the target. 3. The target device establishes a stream session with the Provisioning Server and boots the assigned vDisk.
Citrix XenApp Performance Essentials by Luca Dentella