It’s still required to optimize the OS even if running so few users. Kernel memory may not limit you (i would however tune it) but smb commands most likely will if you use any filestorage, lazy flush will impact etc. etc.

However, as mentioned in earlier posts, it’s probably dependant on applications (even if i havn’t found one that works well with 25ccu’s on a single vCPU vm).

Anyhow, measuring from within the vm usually won’t give you “real” numbers, dedicated resources or not.

I noticed that users would abandon their session on the 1vCPU server as the load hit around 50% to 60% cpu. This was only about 12 users.

So for me if I was going to virtualize a Citrix server it would need 2vCPU.

Obviously hardware and applications are a factor as well.

Couldnt agree more, it certainly depends on the applications, user load and also how you are publising the apps. Hopefully in my next post I will show how the real users compare to my test users. Thanks for your comments.

Rodos

Thanks for the comments, funny enough my next blog will be including a real user graph showing the 8 VMs working on the seperate cores and showing how real user trends are different.

I have also performed more testing to see if there is CPU stress which cause issues and these will also be included in the next post… watch this space !

Alan