id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
23745	Migrations migrate is slow	Claude Paroz	nobody	"Slowness around the optimizer is tracked in #22608. This ticket is specifically targeted to slowness with the `migrate` command. To repeat a comment previously done in #22608, each migration in the Django test suite is taking up 3.5 seconds. That should be improved.

Profiling migrations in the current test suite:
{{{
   ncalls  tottime  percall  cumtime  percall filename:lineno(function)
        1    0.000    0.000   27.714   27.714 django/db/migrations/executor.py:55(migrate)
        8    0.000    0.000   27.714    3.464 django/db/migrations/executor.py:83(apply_migration)
        8    0.042    0.005   13.157    1.645 django/db/migrations/executor.py:128(detect_soft_applied)
        8    0.000    0.000   14.500    1.812 django/db/migrations/migration.py:79(apply)
        8    0.042    0.005   12.945    1.618 django/db/migrations/operations/models.py:32(database_forwards)
       17    0.094    0.006   27.447    1.615 django/db/migrations/state.py:42(ProjectState.render)
    21511    0.791    0.000   21.881    0.001 django/db/migrations/state.py:293(ModelState.render)
    21488    0.549    0.000    5.290    0.000 django/db/migrations/state.py:164(ModelState.from_model)
21515/21511    0.766    0.000   15.861    0.001 django/db/models/base.py:63(ModelBase.__new__)
}}}"	Cleanup/optimization	closed	Migrations	dev	Release blocker	fixed			Ready for checkin	1	0	0	0	0	0