vDesktop is slow

[nnmansoori]

hi, I am using vSphere 4.1, VMware View 4.5 and Windows XP SP3 for my vDesktops, each vDesktop has 2 GB of RAM and 2vCPU limited to 3GHZ of CPU, the users connect to their vDesktops through Wyse C10LE and RDP and also Wyse C90LE and PCoIP, the users claim that their vDesktop is slow while they have enough resource, and when I monitor them with Veeam, they have lots of free resource for CPU and RAM, ( the usage is less than 45%, when I checked I realized their complain is because their screen is like the VGA is not installed and in time of minimizing and maximizing the pages, it is slow motion, is there anything I can do to solve the issue?

[idle-jam]

can we try to do isolation by instead of using thin client to connect could you try to use your PC/Laptop instead? this would minimize the scope of problem to either thin client or vmware/desktops.

[mittim12]

What does your bandwidth between client and VDI machine look like? 

[nnmansoori]

Hi, I did it, 7 users are connecting through their PCs, with VMware View client 4.5 installed, but again the same issue.

[nnmansoori]

hi, as I said each TC has 1 Gb NIC and the Access Switch port Speed is 1Gb, and also the uplink between Data Center and Server's Switch and Access Switches is 10G.

[buckethead]

How does the storage look?  We have seen a similar issue when we had misaligned virtual disks or when the Storage was not optimized as we had requested from our SAN team.

Also, are you using locally installed applications or an application virtualization product?  

[nnmansoori]

hi, as I monitored one vDesktop Virtual disk, the write latency in between o to 1 millisecond, but the read latency is between 2 to 20 milliseconds.

[gunnarb]

Is there any reason you are choosing not to use PCoIP.  RDP as a protocol is slow, PCoIP is much faster.  Try switching the protocol and see if they like it better.

-Gunnar Berger

Teradici

[nnmansoori]

Hi

I am using locally installed applications.

[nnmansoori]

I am already using PCoIP, but again users are not satisfied with the Graphic performance.

[Linjo]

I suspect that PCoIP is not working correctly for some reason, could be networking that is the limiting factor.

Could you attatch a recent pcoip-server.log from the vDesktop?

[IP2008]

Do you have any updates on this? We have a similar issue and are currently going through the process of replacing the device, network cable etc.

Thanks