[pve-devel] little iops with PVE kernel than vanilla 3.5

[Dietmar Maurer]

> On my KVM Host i get constant 100.000 4k random iops with vanilla 3.5 and
> latest PVE kernel - so no difference.
> 
> But inside VM using LVM block device with virt io:
> 
> PVE Kernel:
> 1 VM: 15k iops
> 2 VM: 2x10k iops
> 
> 3.5 vanilla Kernel:
> 1 VM: 60k iops
> 2 VM: 2x30k iops
> 
> Anything we can do about that?

What kernel do you use inside the VM?