Re: Performance results with exofs

Boaz Harrosh
2010-06-07T16:13:33Z

On 06/07/2010 07:07 PM, Boaz Harrosh wrote:
> On 06/07/2010 06:24 PM, sfaibish wrote:
>> Boaz,
>>
>> You were mentioning some preliminary performance on NFS4.1 and pNFS during
>> the pNFS call few weeks back. I thought you put them in an email but I
>> couldn't
>> find that email. Could you re-send it to me or summarize the results in a
>> new
>> email for comparison to the block layout performance. Bruce is also
>> interested
>> so I CC him as well. Thanks
>>
>> /Sorin
>>
>
> I did not yet publish the Document. It's stuck behind my dis-talent for
> writing and the pnfs bugs de jur.
>
> Basically all machines:
> - connected by a 1 GBit link.
> - All clients doing a dd write of 8GB file from /dev/zero
> - 3of8 is the special raid-groups arrangement of exofs && objlayout
> where out of 8 devices each file is striped over 3 devices in a
> round robin fashion. (*With a small dirty trick)
>

- All tests over an *empty* filesystem.

> [single client]
> 1 - osds 40MB
> 2 - osds 80MB
> 4 - osds 114MB (saturation point of the 1 Gbit link)
> 8 - osds 114MB
>
> [2 clients 8of8 osds]
> 226 MBs
>
> [4 clients 8of8 osds]
> 263 MBs
>
> [8 clients 8of8 osds]
> 252 MBs
>
> [1 clients 3of8 osds]
> 114 MBs
>
> [2 clients 3of8 osds *]
> 226 MBs
>
> [4 clients 3of8 osds *]
> 417 MBs
>
> [8 clients 3of8 osds]
> 405 MBs
>
> Boaz
>