Hello,
I am optimizing an application in which fetching objects from the ZODB
seems to be a bottleneck. The problem is I would like to fetch an object
that contains some persistent fields. For example:
class A (Persistent):
def __init__(self):
self._primaryAuthors = PersistentList()
self._coAuthors = PersistentList()
self._speakers = PersistentList()
After that there is a need to fetch every single persistent field
(_primaryAuthors , _coAuthors, __speakers etc. ) from this object,
which takes a lot of time. It seems that access time to the ZODB takes
significantly more time than operations performed inside the database to
load an object. Is there a possibility to fetch an object and its all
persistent field with a single access to the ZODB? Changing fields to
non persistent is rather impossible due to complications in the
application's architecture.
Best regards
Leszek
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