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

[Stefan Priebe]

Inside vm Kernel 3.2 from debian squeeze backports

Am 22.07.2012 um 07:42 schrieb Dietmar Maurer <dietmar at proxmox.com>:

>> 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?
>