Hi,
Thanks,
As you have said I have built a template on virt-manager and then imported as 
template as windows pv and performance is good, but the default installation on 
virt-manager seems better.
The novnc performance is not that good on cloudstack, anyway to improve it?
Regards,Nilantha
    On Tuesday, November 19, 2024 at 05:41:05 PM GMT+4, Nux <n...@li.nux.ro> 
wrote:  
 
 Hi,

For good performance with Windows VMs you need virtio storage and 
network devices.
To get this in Cloudstack you need to add the Windows ISO or template as 
"Windows PV".

The problem is Windows does not ship virtio drivers at all, why would 
they...
.. and you cannot mount a second ISO/cd-rom with the virtio-win.iso to 
get the drivers.
So the solutions are:
1 - build your Windows template somewhere else, like virt-manager or 
proxmox, then export and register in Cloudstack with os type "Windows 
PV"
2 - modify the Windows ISO and copy onto it the virtio drivers so you 
can browse for them and load them

hth

On 2024-11-19 11:15, nilantha liyanage wrote:
> no, it uses sata. 
> I did not have to install the virtio drivers.
>    On Tuesday, November 19, 2024 at 12:25:43 PM GMT+4, Wei ZHOU 
> <ustcweiz...@gmail.com> wrote:
> 
>  I think the vm created by virt-manager also uses virtio driver, isn't 
> it ?
> 
> 
> 
> On Tuesday, November 19, 2024, nilantha liyanage
> <nilanth...@yahoo.com.invalid> wrote:
> 
>>   Hi jayanth,
>> Thanks, it's better now.
>> How to create one without using virtio, just like how it's created in
>> virt-manager?.
>> Also how to improve the performance of novnc console?.
>> Thanks,Nilantha
>> 
>> On 2024/11/18 06:16:51 Jayanth Babu A wrote:
>> > Hi,
>> > Please set the VM / Template setting key “rootDiskController” to
>> “virtio” and ensure the OS type of the template to be “Windows PV”. 
>> Machine
>> pc-i440fx* should be okay.
>> >
>> > Regards,
>> > Jayanth
>> >
>> > From: nilantha liyanage <ni...@yahoo.com.INVALID>
>> > Date: Monday, 18 November 2024 at 11:30 AM
>> > To: users@cloudstack.apache.org <us...@cloudstack.apache.org>
>> > Subject: Windows VM performance on Cloudstack on KVM
>> > Hi All,
>> > I just joined the mailing list, I have a question regarding performance
>> of windows vm running on KVM on cloudstack.
>> > I installed windows server 2022 on Cloudstack on local disk and it is
>> slower then when I install it from virt-manager or cockpit, one thing 
>> I
>> have noticed is that the chipset/emulated machine is different when I
>> install from virt-manager, it is q35 and from cloudstack it's i440fx.
>> > How do I improve the performance of Windows on Cloudstack?.
>> > I'm running cloudstack 4.19.1.2 on RHEL 9.3 both Management and agent on
>> same server.
>> > Server Details:
>> > Lenovo System x3650 M5CPU Model: Intel Xeon E5-2699 X 2RAM: 768gb
>> > Thanks,Nilantha
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