Hi guys, the situation is this:
Server is 2 4 core HT Xeons with 34GB of RAM running Ubuntu with Oracle VB. In Virtual Box we have Windows 7 Pro installed to use all resources, and another PXe Boot Linux OS. TSPlus is installed on Windows 7 Pro VM. We have 25 older Dell 755 desktops that PXe booted and RDPing to Windows VM to open Firefox only. However, we are running into major slowdowns during the day with this setup. Windows VM shows 100% CPU usage when that happens, and host OS (Ubuntu) only showing like 50-60% utilization. We have also had Clear OS VM on the same server, and removed it to another server thinking it might be the cause, but it wasn't? Can you think of a solution to avoid the slowness? Will it help to install windows directly on the server just to serve these 25 machines? Thank you for the help.
running into major slowdowns with 25 clients
Re: running into major slowdowns with 25 clients
Hello,
This is clearly not a normal behavior, it makes me want to ask you if you checked CPU optimization for virtualization in bios of the server if available and if you installed VM tools in the VM. Enabling hardware acceleration is also recommended.
Make also sure you also installed the latest release of TSplus.
Here are a few hints that might help you figure this out :
1- When a few users do log on and the server starts to hang, open a task manager and click on the process tab. Sort
2- Sorting processes by CPU usage can help to isolate who or what is consuming the most CPU usage.
3- Sorting processes by memory can help to isolate which process is using the most memory.
4- Sorting processes by GDI/Users object to isolate which process is using most objects. Some application may cause servers to hang because of this Windows limitation, more information about this can be found here : blogs.technet.com/b/markrussinovich/archive/2010/02/24/3315174.aspx
5- Right click on "My computer" and click "Manage", then check out the system and application event log. They can also give you some information on where the problem is located.
More good practice for a server in good health can be found here : http://support.tsplus.net/kb/faq.php?id=38
This is clearly not a normal behavior, it makes me want to ask you if you checked CPU optimization for virtualization in bios of the server if available and if you installed VM tools in the VM. Enabling hardware acceleration is also recommended.
Make also sure you also installed the latest release of TSplus.
Here are a few hints that might help you figure this out :
1- When a few users do log on and the server starts to hang, open a task manager and click on the process tab. Sort
2- Sorting processes by CPU usage can help to isolate who or what is consuming the most CPU usage.
3- Sorting processes by memory can help to isolate which process is using the most memory.
4- Sorting processes by GDI/Users object to isolate which process is using most objects. Some application may cause servers to hang because of this Windows limitation, more information about this can be found here : blogs.technet.com/b/markrussinovich/archive/2010/02/24/3315174.aspx
5- Right click on "My computer" and click "Manage", then check out the system and application event log. They can also give you some information on where the problem is located.
More good practice for a server in good health can be found here : http://support.tsplus.net/kb/faq.php?id=38
Olivier
TSplus support team administrator
TSplus support team administrator
Re: running into major slowdowns with 25 clients
Thanks for the reply. What seems to fix the problem is that we installed Win7Pro straight to the server and then created few VM's. TSPlus seems to work much better without having to be in VM.