i doubt this was any faster in previous releases since the basic metholodgy of cascade hasnt changed; when you attach object B to object A, it cascades the "save-update" operation across the entire graph represented by B. While there was one little fix a while back so that it wouldnt do cascade if B was already in the session, that doesnt address this situation where you are attaching an unsaved instance which contains references to a whole graph of saved instances.
so ive added your test with an extra assertion that the session in fact contains 611 instances to the "test/perf" directory, and added an extra argument to the "cascade" functions called "halt_on" which indicates to stop cascading if a condition is met; session sets sends the condition as "c in self" so that cascading along save/update/save-update will cease along a branch if the instance is detected to be in the session already (i.e. assumes all of its child instances are handled). thats rev 2116 and the results are now: Create forward associations Time to create item 0: 0.07357 sec Time to create item 1: 0.10025 sec Time to create item 2: 0.04157 sec Time to create item 3: 0.06601 sec Time to create item 4: 0.04751 sec Time to create item 5: 0.06988 sec Time to create item 6: 0.03998 sec Time to create item 7: 0.07138 sec Time to create item 8: 0.04332 sec Time to create item 9: 0.07191 sec Created 610 objects in 0.62538 sec Create backward associations Time to create item 0: 0.03061 sec Time to create item 1: 0.05590 sec Time to create item 2: 0.03099 sec Time to create item 3: 0.07053 sec Time to create item 4: 0.04608 sec Time to create item 5: 0.06852 sec Time to create item 6: 0.03841 sec Time to create item 7: 0.07422 sec Time to create item 8: 0.03793 sec Time to create item 9: 0.06976 sec Created 610 objects in 0.52296 sec --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~----------~----~----~----~------~----~------~--~---
