- Messaging menu was slow when there are many mail failures
- Discuss app is slow whenever there are many pinned threads
- Initial page load was slow when pinned threads were group chats
with hundreds of members
All these performance issue come from aggressively eager call
to reactive callbacks, which `onChange()` and `compute()` were
relying on.
This commits fixes the performance issue with:
- Update cycle in `@mail/record`, which calls eager computed fields
and onChange at the end of an update transaction in discuss models,
so that computation is called only once rather than many times
(while only the later value matter)
- Add support for lazy computed fields (which they are by default),
so that computed fields are only computed when needed.
- Add support for sorted many fields, which also follow the update
cycle and eager/lazy mode of field. This makes sorting operation
on many fields efficient and preserves eventual correctness of
expected order of items in these relational fields.
With module `contacts` installed and populate `--size="medium"`,
init_messaging and mail_failures took 12sec. for Mitchell Admin.
With this commit, this has been reduced to 1sec.
closesodoo/odoo#143382
Related: odoo/enterprise#51410
Signed-off-by: Sébastien Theys (seb) <seb@odoo.com>
Alexandre Kühn
0c998ef1cd