Hi guys,
I've been trying write my first real application for the app engine.
After multiple re-writes I've finally got the hang of things. I think
that I've got something efficient and correct. However, it's still
not performing particularly quickly and I'd like to speed it up a
little more.
The main issue is that most calls have to place two entries into the
datastore:
class PotMember(db.Model):
pot = db.ReferenceProperty(Pot)
member_id = db.IntegerProperty()
count = db.IntegerProperty()
second_pot = db.BooleanProperty()
purchase_time = db.DateTimeProperty(auto_now_add=True)
process_time = db.DateTimeProperty(auto_now=True)
newMembers = []
newMembers.append(PotMember(pot=p, member_id=member_id, count=count,
second_pot=False))
newMembers.append(PotMember(pot=p, member_id=member_id,
count=second_count, second_pot=True))
db.put(newMembers)
This operation takes ~300-400ms, which is enough for App Engine to
complain that my application is executing too slowly and needs to be
"optimised". What exactly is taking so long to place these entries?
Most other put() operations take ~10ms to complete. Is it the use of
the DateTimeProperty or the use of the ReferenceProperty that is
slowing this call down?
Any help would be appreciated.
Many Thanks, Chris.
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