[pve-devel] ceph news: syncfs kernel support for next stable release

[Stefan Priebe - Profihost AG]

It's a mixture of both. But my hw is still inkonsistent and an odd number. Will get my final hw Friday or Monday.

Stefan

Am 04.12.2012 um 18:02 schrieb Alexandre DERUMIER <aderumier at odiso.com>:

>>> Right now 23.000 iops with random 4k writes.
> Is it the limit by vm or for the total cluster ?
> 
> 
> 
> ----- Mail original ----- 
> 
> De: "Stefan Priebe - Profihost AG" <s.priebe at profihost.ag> 
> À: "Alexandre DERUMIER" <aderumier at odiso.com> 
> Cc: "Dietmar Maurer" <dietmar at proxmox.com>, pve-devel at pve.proxmox.com 
> Envoyé: Mardi 4 Décembre 2012 16:26:24 
> Objet: Re: [pve-devel] ceph news: syncfs kernel support for next stable release 
> 
> Hi, 
> 
> Am 04.12.2012 15:59, schrieb Alexandre DERUMIER: 
>>>> So the performance problems are already solved?
>> 
>> I can't get more than 6000iops by kvm guest with my current setup. (I don't know where is the bottleneck, maybe network latency or cpu on my cluster) 
>> 
>> But Stefan has achieve a lot more with his ssd cluster. 
>> Stefan, what are your last bench results ?
> Right now 23.000 iops with random 4k writes. 
> 
>> Maybe some conf file tuning advice could be fine :)
> Disable debugging see ceph list and disable auth. 
> 
> Greets, 
> Stefan