What I've done is something like this:
account_entries = self.entries[:]
for entry in new_entries:
insort_right(account_entries, entry)
for i, entry in enumerate(account_entries):
entry.position = i
self.entries = account_entries
Don't know if it's the right way to do it but it's much faster.
On 22 sep, 18:41, jason kirtland <[EMAIL PROTECTED]> wrote:
> I'm sure there is potential for improvement on the current orderinglist
> code- please feel free to send a patch with optimizations you've found
> to the SA trac.
>
> The orderinglist hasn't changed much since 0.3, but with 0.5 there may
> be entirely new implementations possible. For example, I could imagine
> one that defers calculation and manipulation of the positioning
> information until a before_flush hook. That may be perform better, with
> the trade-off that the position attribute can't be trusted to be in sync
> with the list order.
>
> jean-philippe dutreve wrote:
> > Below is the profiling of code that added 1200 items into an
> > ordering_list relation. I had to bypass the ordering_list stuff for
> > bulk additions in order to have better performance (down to 2
> > seconds).
> > Hope this post helps to improve this part (using 0.5.0rc1, python 2.5,
> > linux i686, 1.5Go RAM)
>
> > SA is rocking!
> > jean-philippe
>
> > Time elapsed: 48.4475638866 s
> > 8875046 function calls (8869157 primitive calls) in 48.443
> > CPU seconds
>
> > Ordered by: internal time, call count
> > List reduced from 390 to 10 due to restriction <10>
>
> > ncalls tottime percall cumtime percall
> > filename:lineno(function)
> > 1292937/1292250 7.879 0.000 12.134 0.000 attributes.py:
> > 132(__get__)
> > 1241013 7.662 0.000 39.836 0.000 orderinglist.py:
> > 221(_order_entity)
> > 1241013 5.870 0.000 16.916 0.000 orderinglist.py:
> > 202(_get_order_value)
> > 440809 4.522 0.000 9.527 0.000 attributes.py:394(set)
> > 1236 4.198 0.003 44.025 0.036 orderinglist.py:
> > 208(reorder)
> > 1299736/1299048 3.752 0.000 4.373 0.000 attributes.py:
> > 310(get)
> > 448225 3.337 0.000 5.157 0.000 identity.py:
> > 208(modified_event)
> > 437061 2.704 0.000 14.331 0.000 orderinglist.py:
> > 205(_set_order_value)
> > 440809 2.225 0.000 11.752 0.000 attributes.py:
> > 126(__set__)
> > 448225 1.775 0.000 1.812 0.000 attributes.py:
> > 958(modified_event)
>
> > Function was called by...
> > attributes.py:132(__get__) <- domain.py:200(addEntry)
> > (1236) 46.741
> > domain.py:248(__init__)
> > (1236) 47.832
> > domain.py:272(get)(49452)
> > 0.609
> > orderinglist.py:
> > 202(_get_order_value)(1241013) 16.916
> > orderinglist.py:221(_order_entity) <- orderinglist.py:208(reorder)
> > (1240326) 44.025
> > orderinglist.py:232(append)
> > (687) 0.013
> > orderinglist.py:202(_get_order_value) <- orderinglist.py:
> > 221(_order_entity)(1241013) 39.836
> > attributes.py:394(set) <- attributes.py:126(__set__)
> > (440809) 11.752
> > orderinglist.py:208(reorder) <- orderinglist.py:
> > 266(__setslice__)(1236) 44.061
> > attributes.py:310(get) <- attributes.py:132(__get__)
> > (1292937) 12.134
> > attributes.py:
> > 347(get_committed_value)(1) 0.000
> > attributes.py:500(set)
> > (3708) 0.367
> > attributes.py:
> > 837(value_as_iterable)(3090) 0.108
> > identity.py:208(modified_event) <- attributes.py:394(set)
> > (440809) 9.527
> > attributes.py:
> > 525(fire_replace_event)(3708) 0.236
> > attributes.py:
> > 579(fire_append_event)(3708) 1.960
> > orderinglist.py:205(_set_order_value) <- orderinglist.py:
> > 221(_order_entity)(437061) 39.836
> > attributes.py:126(__set__) <- domain.py:
> > 237(_set_attributes)(1276) 0.079
> > domain.py:255(update)
> > (2472) 0.089
> > orderinglist.py:
> > 205(_set_order_value)(437061) 14.331
> > attributes.py:958(modified_event) <- identity.py:
> > 208(modified_event)(448225) 5.157
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