On Wed, 29 Sep 2010 09:53:37 +0200
Adam GROSZER <agros...@gmail.com> wrote:
> I made a small modification to zodbupdate that makes it quite faster.
> Please give it a quick review.
I don't think your fix cover all cases.
Correct me if I am wrong, what you do is not unpickle class data pickle
unless the class_meta information pickle of that record changed, and
need update ?
However, that imply that this doesn't update anymore any class
reference that is not itself persistent (so is only in the
class data pickle) and not used by a persistent renamed-as-well class
(otherwise the change in the class_meta pickle would trigger
an update of this record).
If we want to make it faster, all I can see is pack the database
before, as it would contain less records to go through after. I am
not sure, that adding parallelism would help a lot, unless you have
the good hardware for, but we could make it to see (it is not that
On which database size you want to make it faster ? I had 20Go
databases and it toke less than one hour, if I remember correctly.
It's long, but I don't see how to make it faster, in the code itself.
Sylvain Viollon -- Infrae
t +31 10 243 7051 -- http://infrae.com
Hoevestraat 10 3033GC Rotterdam -- The Netherlands
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