Which will give best performance?

[ddevi]

Hi,

I want to use the best performance configuration. I need help to find out which VM configuration is the best for me.
The best performance means the drivers use low CPU time.

I will use local storage with a separate disk. Which file system is best for sata qcow2 virtual machines?
All VMs will have only one disk with low usage. But I will use linked clone.

Each virtual machine has multiple network interfaces with low usage. Is virtio or E1000 the better choice?

Which SCSI controller is the better in this case (virtio, LSI)?

All VMs will work in the memory with very low perifera usage. Only the logs wil be wrote.
But I would like decrease the OS boot time to the minimum with best configuration chosen.

If you have any idea I'm open to try it.

Thanks

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[Dunuin]

I will use local storage with a separate disk. Which file system is best for sata qcow2 virtual machines?
All VMs will have only one disk with low usage. But I will use linked clone.

How many and what disks you are planning to use? And do you want to use HW or SW raid?

Each virtual machine has multiple network interfaces with low usage. Is virtio or E1000 the better choice?

Virtio should be always better because its the only one that is paravirtualized.

Which SCSI controller is the better in this case (virtio, LSI)?

Same as before, virtio SCSI because its paravirtualized. Keep in mind that Win VMs will need the drivers while installing it or the Win installer can't see the NICs and virtual disks.