Re: [ceph-users] Why is librbd1 / librados2 from Firefly 20% slower than the one from dumpling?

[Stefan Priebe <s.priebe@profihost.ag>]

Hi Greg,

Am 02.07.2014 21:36, schrieb Gregory Farnum:
> On Wed, Jul 2, 2014 at 12:00 PM, Stefan Priebe <s.priebe@profihost.ag> wrote:
>>
>> Am 02.07.2014 16:00, schrieb Gregory Farnum:
>>
>>> Yeah, it's fighting for attention with a lot of other urgent stuff. :(
>>>
>>> Anyway, even if you can't look up any details or reproduce at this
>>> time, I'm sure you know what shape the cluster was (number of OSDs,
>>> running on SSDs or hard drives, etc), and that would be useful
>>> guidance. :)
>>
>>
>> Sure
>>
>> Number of OSDs: 24
>> Each OSD has an SSD capable of doing tested with fio before installing ceph
>> (70.000 iop/s 4k write, 580MB/s seq. write 1MB blocks)
>>
>> Single Xeon E5-1620 v2 @ 3.70GHz
>>
>> 48GB RAM
>
> Awesome, thanks.
>
> I went through the changelogs on the librados/, osdc/, and msg/
> directories to see if I could find any likely change candidates
> between Dumpling and Firefly and couldn't see any issues. :( But I
> suspect that the sharding changes coming will more than make up the
> difference, so you might want to plan on checking that out when it
> arrives, even if you don't want to deploy it to production.n

To which changes do you refer? Will they be part or backported of/to 
firefly?

> -Greg
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