Re: Ceph Production Environment Setup and Configurations?

[Joao Eduardo Luis <joao.luis@inktank.com>]

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On 01/29/2013 11:25 AM, Chen, Xiaoxi wrote:
> [The following views only behalf of myself, not relate with Intel..]
> Looking forward for the performance data on Atom.
> Atom perform badly in Swift, but since Ceph is slightly efficient than Swift, it must be better.
> I have some concern about weather Atom can support such high throughput( you have 16 disks, assuming 50MB/s per disk, you would like to have 50*16 *2(include journal write)=1600MB/s ,together with corresponding network throughput, say 10GbE. The total IO throughput seems too high for Atom. Baidu (www.baidu.com) use Arm based storage node(not using ceph,but their own DFS), a node with a quad-core Arm together with 4 disks, and a 2U box can put up to 6 nodes, the 6 nodes share a 10Gb NIC. Although Atom is different with Arm, but you can take Baidu as a reference.
> 
> 
> -----Original Message-----
> From: ceph-devel-owner@vger.kernel.org [mailto:ceph-devel-owner@vger.kernel.org] On Behalf Of Gandalf Corvotempesta
> Sent: 2013Äê1ÔÂ29ÈÕ 17:25
> To: femi anjorin
> Cc: ceph-devel@vger.kernel.org; Ross Turk
> Subject: Re: Ceph Production Environment Setup and Configurations?
> 
> 2013/1/29 femi anjorin <femi.anjorin@gmail.com>:
>> CPU - Intel(R) Atom(TM) CPU D525   @ 1.80GHz
> 
> Atom? For which kind of role ?
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> 


FWIW, Wido had been testing Ceph on Atoms a while back.  I don't know
what conclusions he reached, or even if he has already reached any
conclusions at all.  I, for one, would be really interested in knowing
how well (or how poorly) Atoms deal with Ceph.

Maybe Wido can share some thoughts on this one? :-)

  -Joao
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