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

[Martin Maurer]

> -----Original Message-----
> From: pve-devel-bounces at pve.proxmox.com [mailto:pve-devel-
> bounces at pve.proxmox.com] On Behalf Of Stefan Priebe
> Sent: Samstag, 21. Juli 2012 21:24
> To: pve-devel at pve.proxmox.com
> Subject: [pve-devel] little iops with PVE kernel than vanilla 3.5
> 
> Hello list,
> 
> i'm still trying to tune my Proxmox environment.
> 
> 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?

Give all details (Hardware, Software, used benchmark command) and I will try to reproduce it in the lab.

Martin