Hi Wei, I think lots of users are unaware of PV OS Type to improve the performance, I was also facing the same problem with Windows Machine and thanks to this thread I also got better disk performance. So instead of changing the OS type can ACS provide an option within the UI to change the virtualization/driver (e.g. scsi/ide) mode in a stopped VM?
On Mon, Dec 11, 2023 at 4:14 PM Wei ZHOU <ustcweiz...@gmail.com> wrote: > If the OS type is "Windows Server xxxx", the VM will be started with an > E1000 nic device and IDE disk. > > You need to change to "Windows PV", vm will have virtio NIC and disk. > If you want better disk performance, you can try with "Other PV Virtio-SCSI > (64-bit)", which might require some changes on your windows templates. > > -Wei > > > On Mon, 11 Dec 2023 at 11:34, <m...@swen.io> wrote: > > > Thx, Wei, I used OS Type Windows Server 2022 (64-bit). Is this not > working? > > > > -----Ursprüngliche Nachricht----- > > Von: Wei ZHOU <ustcweiz...@gmail.com> > > Gesendet: Montag, 11. Dezember 2023 11:29 > > An: users@cloudstack.apache.org > > Betreff: Re: running Windows VM on Ubuntu 22 KVM > > > > You can stop the vm, change the OS type to "Windows PV" and then start > the > > vm. > > > > -Wei > > > > On Mon, 11 Dec 2023 at 11:17, <m...@swen.io> wrote: > > > > > Hi all, > > > > > > > > > > > > I am kind of new to use KVM for Windows VMs and run into some problems. > > > > > > I used an English template for Windows Server 2022 and installed a VM > > > successfully via Cloudstack. Everything looks good and the NIC is > > > working Intel PRO 1000 emulation. > > > > > > As far as I understand you need to install the VirtIO driver to get a > > > better performance from your VM. I downloaded the ISO from: > > > > > > https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/stabl > > > e-virt > > > io/virtio-win.iso > > > <https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/stab > > > le-virtio/virtio-win.iso> > > > > > > And installed them inside the Windows Sever VM successfully. But even > > > after a reboot of the VM it looks like it is still using the emulated > > > Intel PRO > > > 1000 NIC and also QEMU ATA drivers for disk access. > > > > > > > > > > > > Did I miss something? Do I need to install anything on the KVM host, > too? > > > Performance is very poor inside the Wind VM. > > > > > > > > > > > > Thx for any help! > > > > > > > > > > > > Regards, > > > > > > Swen > > > > > > > > > > > > > -- *Regards,* *Pratik Chandrakar*
