On 09/11/2013 11:29 AM, Sage Weil wrote:
On Wed, 11 Sep 2013, Loic Dachary wrote:
[cc'ing the devel mailing list]
Hi James,
Thanks for the positive feedback :-) I found the API fairly
straightforward and I don't see what could be improved. However, I've
learnt about erasure code and designed the Ceph plugin abstract API
mostly by studying jerasure. I'm probably biased : let hear what others
have to suggest.
Cheers
On 11/09/2013 17:04, James Plank wrote:
Hi Loic -- I took a scan, and it looks like a nice usage of the
library. Here's a question -- for the next revision of jerasure, are
there any functionalities that you would like to see, that would make
your life as a developer easier? Thanks! Jim ----------
Hi James-
Late to this discussion, and this may have already been covered, but:
there is a bunch of Intel-optimized code floating around for various
erasure codes. I would love to see this incorporated into jerasure (with
automatic arch and CPU feature detection) so that users can transparently
take advantage of it.
sage
+1. Same for ARM down the road. :D
Mark
On Aug 30, 2013, at 4:20 AM, Loic Dachary wrote:
Hi James,
The first version of the jerasure 1.2A plugin for Ceph is complete at
https://github.com/ceph/ceph/pull/538#commits-pushed-763275e
This commit introduces the main part:
ErasureCodeJerasure: base class for jerasure ErasureCodeInterface
https://github.com/dachary/ceph/commit/76d2842358465e560a4929d60131762f8c93804f
and each technique is derived from it in six successive commits, starting from here
ErasureCodeJerasure: define technique ReedSolomonVandermonde
It would be great if you could take a look and let us know if you see anything odd.
Cheers
--
Lo?c Dachary, Artisan Logiciel Libre
All that is necessary for the triumph of evil is that good people do nothing.
--
Lo?c Dachary, Artisan Logiciel Libre
All that is necessary for the triumph of evil is that good people do nothing.
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