Mike Bayer bb39c1606d remove intermediary _is_clone_of entries when cloning ...

Improvements in memory usage by the ORM, removing a significant set of
intermediary expression objects that are typically stored when a copy of an
expression object is created. These clones have been greatly reduced,
reducing the number of total expression objects stored in memory by
ORM mappings by about 30%.

note this change causes the tests to have a bit of a harder time with
GC, which we would assume is because mappings now have a lot more
garbage to clean up after mappers are configured.   it remains
to be seen what the long term effects of this are.

Fixes: #7823
Change-Id: If8729747ffb9bf27e8974f069a994b5a823ee095
(cherry picked from commit b8db80e9ea917e4770c78feff092044d386985c6)

2022-03-17 10:12:23 -04:00

..

__init__.py

…

test_compiler.py

Replace with_labels() and apply_labels() in ORM/Core

2021-01-26 16:52:30 -05:00

test_memusage.py

remove intermediary _is_clone_of entries when cloning

2022-03-17 10:12:23 -04:00

test_misc.py

Modernize tests - calling_mapper_directly

2021-09-30 10:10:16 -04:00

test_orm.py

correct for non-deterministic gc artifacts

2022-02-15 15:12:43 -05:00

test_pool.py

Add new "sync once" mode for pool.connect

2021-04-21 22:31:42 -04:00

test_resultset.py

remove more bound metadata

2021-01-05 23:46:02 -05:00