[cdwg] Lustre 2.5 Development Planning

[Dilger, Andreas]

On 2013/04/06 12:13 PM, "Christopher J. Morrone" <morrone2 at llnl.gov> wrote:
>Thanks for the input!  I think that issue is distinct enough from the
>other client problems that it warrants a new ticket.  Please open a new
>ticket and let us know what the ticket number is.

There is already https://jira.hpdd.intel.com/browse/LU-3178 "single stream
write to striped file is slow with 2.X clients", so no need to open a new
ticket.

I think it is important to remind people that "requirements gathering" for
new features and development is really something for TWG and future RFPs.
I think this CDWG process should be focussed on getting features/patches
that are in progress or already finished into the 2.5 release.

Unless there is some change to the schedule, the 2.5 feature freeze is at
the end of July (i.e. 8 weeks from now), so that doesn't leave a lot of
room for feature development that isn't already well underway.  That
doesn't
mean that no work should be done on these other issues, just that they are
not likely to be included into the 2.5 release if they are just starting.

Cheers, Andreas

>On 06/04/2013 11:03 AM, Frederik Ferner wrote:
>> We'd like to see better performance for single client single process
>> writes to single files, though I can see this might be more a longer
>> term goal. I'm not sure there even is a ticket for this that I could
>> reference, LU-744 comes close but I'm not sure it fully covers it.
>>
>> In our case it is tomography detectors writing single large files from
>> on machine that will later be processed on clusters and writing we are
>> no where near to saturating either the disks or the network links. It
>> seems copying the data from userspace to kernel space on the client
>> might be the bottleneck.
>>
>> Cheers,
>> Frederik
>>
>
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Cheers, Andreas
-- 
Andreas Dilger

Lustre Software Architect
Intel High Performance Data Division