Again, it's hard to tell what the slowdown might be caused by without a more detailed investigation. I suggest you use cProfile[0] for that.
Given your tests are only running for a small amount of time relative to Django's setup time I assume two things are causing the apparent slowdown: 1. A slower Django setup(), I think some changes were part of 1.8 -> 1.11 2. Reliance on now lazily loaded part of Django. Cheers, Simon [0] https://docs.python.org/3/library/profile.html Le samedi 15 juin 2019 11:25:10 UTC-4, Mark Jones a écrit : > > Ah, but the slowdown is happening from 1.8 forward, each version of Django > make things just a bit slower. It's a gradual slowdown. > > I do think I've got 3.2x libsqlite though. So we can account for the > slowdown on 2.1 -> 2.2 > > /usr/lib/libsqlite3.0.dylib > /usr/lib/libsqlite3.dylib > /usr/local/Cellar/sqlite/3.27.1/lib/libsqlite3.0.dylib > /usr/local/Cellar/sqlite/3.27.1/lib/libsqlite3.a > /usr/local/Cellar/sqlite/3.27.1/lib/libsqlite3.dylib > /usr/local/Cellar/sqlite/3.28.0/lib/libsqlite3.0.dylib > /usr/local/Cellar/sqlite/3.28.0/lib/libsqlite3.a > /usr/local/Cellar/sqlite/3.28.0/lib/libsqlite3.dylib > > > On Sat, Jun 15, 2019 at 8:16 AM Simon Charette <char...@gmail.com > <javascript:>> wrote: > >> I meant Django 2.0 -> 2.1. As long as you are using Django 2.2 with >> SQLite 3.20+ >> the slowdown I mentioned should be effective. >> >> Simon >> >> Le samedi 15 juin 2019 08:32:56 UTC-4, Mark Jones a écrit : >>> >>> Maybe that's the case, I didn't build the python2.7 or 3.7, but I used >>> pyenv to install 3.4, 3.5, and 3.6 and they are all using the same version >>> of SQLite. And with each version of python, the tests slow down as the >>> version of django increases. Could this still be the SQLite v2.1->v2.2? >>> >>> Django isn't getting slower as the version of python increases, it's >>> getting slower as the version of Django increases. >>> >>> On Sat, Jun 15, 2019 at 7:20 AM Simon Charette <char...@gmail.com> >>> wrote: >>> >>>> Hi Mark, >>>> >>>> It's hard to tell exactly what's going on without more details but >>>> assuming you are running tests >>>> against SQLite the 2.1 to 2.2 slowdown is likely caused by the fact >>>> database constraints are >>>> now checked of each TestCase[0]. >>>> >>>> Cheers, >>>> Simon >>>> >>>> [0] https://docs.djangoproject.com/en/2.2/releases/2.2/#tests >>>> >>>> >>>> Le samedi 15 juin 2019 07:26:35 UTC-4, Mark Jones a écrit : >>>>> >>>>> I was fixing up a Django app >>>>> https://github.com/mark0978/django-softdelete and setting up tox to >>>>> make sure it worked with all the listed versions because of issues opened >>>>> on the original repo. While I was running tox locally I noticed that >>>>> with >>>>> every version of Django, the tests ran slower, and from 1.8 -> 2.2 the >>>>> test >>>>> time was nearly doubled. This was true for every version of python >>>>> tested >>>>> from 2.7 - 3.7. >>>>> >>>>> If you want to check this on your machine, just grab the repo and run >>>>> tox. I'm including the minimal tox output to show this phenomenon. >>>>> >>>>> py27-A installed: DEPRECATION: Python 2.7 will reach the end of its >>>>> life on January 1st, 2020. Please upgrade your Python as Python 2.7 won't >>>>> be maintained after that date. A future version of pip will drop support >>>>> for Python 2.7.,Django==1.8.19,-e >>>>> git+...@github.com:mark0978/django-softdelete.git@72b46b0a7823a4fdcb43489663e90713ca7d698d#egg=django_softdelete >>>>> ---------------------------------------------------------------------- >>>>> Ran 14 tests in 2.821s >>>>> >>>>> py27-B installed: DEPRECATION: Python 2.7 will reach the end of its >>>>> life on January 1st, 2020. Please upgrade your Python as Python 2.7 won't >>>>> be maintained after that date. A future version of pip will drop support >>>>> for Python 2.7.,Django==1.9.13,-e >>>>> git+...@github.com:mark0978/django-softdelete.git@72b46b0a7823a4fdcb43489663e90713ca7d698d#egg=django_softdelete >>>>> ---------------------------------------------------------------------- >>>>> Ran 14 tests in 3.036s >>>>> >>>>> py27-C installed: DEPRECATION: Python 2.7 will reach the end of its >>>>> life on January 1st, 2020. Please upgrade your Python as Python 2.7 won't >>>>> be maintained after that date. A future version of pip will drop support >>>>> for Python 2.7.,Django==1.10.8,-e >>>>> git+...@github.com:mark0978/django-softdelete.git@72b46b0a7823a4fdcb43489663e90713ca7d698d#egg=django_softdelete >>>>> ---------------------------------------------------------------------- >>>>> Ran 14 tests in 3.198s >>>>> >>>>> py27-D installed: DEPRECATION: Python 2.7 will reach the end of its >>>>> life on January 1st, 2020. Please upgrade your Python as Python 2.7 won't >>>>> be maintained after that date. A future version of pip will drop support >>>>> for Python 2.7.,Django==1.11.21,-e >>>>> git+...@github.com:mark0978/django-softdelete.git@72b46b0a7823a4fdcb43489663e90713ca7d698d#egg=django_softdelete,pytz==2019.1 >>>>> ---------------------------------------------------------------------- >>>>> Ran 14 tests in 3.609s >>>>> >>>>> py34-A installed: DEPRECATION: Python 3.4 support has been deprecated. >>>>> pip 19.1 will be the last one supporting it. Please upgrade your Python >>>>> as >>>>> Python 3.4 won't be maintained after March 2019 (cf PEP >>>>> 429).,Django==1.8.19,-e >>>>> git+...@github.com:mark0978/django-softdelete.git@72b46b0a7823a4fdcb43489663e90713ca7d698d#egg=django_softdelete >>>>> ---------------------------------------------------------------------- >>>>> Ran 14 tests in 2.733s >>>>> >>>>> py34-B installed: DEPRECATION: Python 3.4 support has been deprecated. >>>>> pip 19.1 will be the last one supporting it. Please upgrade your Python >>>>> as >>>>> Python 3.4 won't be maintained after March 2019 (cf PEP >>>>> 429).,Django==1.9.13,-e >>>>> git+...@github.com:mark0978/django-softdelete.git@72b46b0a7823a4fdcb43489663e90713ca7d698d#egg=django_softdelete >>>>> ---------------------------------------------------------------------- >>>>> Ran 14 tests in 3.066s >>>>> >>>>> py34-C installed: DEPRECATION: Python 3.4 support has been deprecated. >>>>> pip 19.1 will be the last one supporting it. Please upgrade your Python >>>>> as >>>>> Python 3.4 won't be maintained after March 2019 (cf PEP >>>>> 429).,Django==1.10.8,-e >>>>> git+...@github.com:mark0978/django-softdelete.git@72b46b0a7823a4fdcb43489663e90713ca7d698d#egg=django_softdelete >>>>> ---------------------------------------------------------------------- >>>>> Ran 14 tests in 3.232s >>>>> >>>>> py34-D installed: DEPRECATION: Python 3.4 support has been deprecated. >>>>> pip 19.1 will be the last one supporting it. Please upgrade your Python >>>>> as >>>>> Python 3.4 won't be maintained after March 2019 (cf PEP >>>>> 429).,Django==1.11.21,-e >>>>> git+...@github.com:mark0978/django-softdelete.git@72b46b0a7823a4fdcb43489663e90713ca7d698d#egg=django_softdelete,pytz==2019.1 >>>>> ---------------------------------------------------------------------- >>>>> Ran 14 tests in 3.564s >>>>> >>>>> py34-E installed: DEPRECATION: Python 3.4 support has been deprecated. >>>>> pip 19.1 will be the last one supporting it. Please upgrade your Python >>>>> as >>>>> Python 3.4 won't be maintained after March 2019 (cf PEP >>>>> 429).,Django==2.0.13,-e >>>>> git+...@github.com:mark0978/django-softdelete.git@72b46b0a7823a4fdcb43489663e90713ca7d698d#egg=django_softdelete,pytz==2019.1 >>>>> ---------------------------------------------------------------------- >>>>> Ran 14 tests in 5.515s >>>>> >>>>> py35-A installed: Django==1.8.19,-e >>>>> git+...@github.com:mark0978/django-softdelete.git@72b46b0a7823a4fdcb43489663e90713ca7d698d#egg=django_softdelete >>>>> ---------------------------------------------------------------------- >>>>> Ran 14 tests in 2.603s >>>>> >>>>> py35-B installed: Django==1.9.13,-e >>>>> git+...@github.com:mark0978/django-softdelete.git@72b46b0a7823a4fdcb43489663e90713ca7d698d#egg=django_softdelete >>>>> ---------------------------------------------------------------------- >>>>> Ran 14 tests in 2.923s >>>>> >>>>> py35-C installed: Django==1.10.8,-e >>>>> git+...@github.com:mark0978/django-softdelete.git@72b46b0a7823a4fdcb43489663e90713ca7d698d#egg=django_softdelete >>>>> ---------------------------------------------------------------------- >>>>> Ran 14 tests in 3.099s >>>>> >>>>> py35-D installed: Django==1.11.21,-e >>>>> git+...@github.com:mark0978/django-softdelete.git@72b46b0a7823a4fdcb43489663e90713ca7d698d#egg=django_softdelete,pytz==2019.1 >>>>> ---------------------------------------------------------------------- >>>>> Ran 14 tests in 3.252s >>>>> >>>>> py35-E installed: Django==2.0.13,-e >>>>> git+...@github.com:mark0978/django-softdelete.git@72b46b0a7823a4fdcb43489663e90713ca7d698d#egg=django_softdelete,pytz==2019.1 >>>>> ---------------------------------------------------------------------- >>>>> Ran 14 tests in 5.163s >>>>> >>>>> py35-F installed: Django==2.1.9,-e >>>>> git+...@github.com:mark0978/django-softdelete.git@72b46b0a7823a4fdcb43489663e90713ca7d698d#egg=django_softdelete,pytz==2019.1 >>>>> ---------------------------------------------------------------------- >>>>> Ran 14 tests in 5.784s >>>>> >>>>> py35-G installed: Django==2.2.2,-e >>>>> git+...@github.com:mark0978/django-softdelete.git@72b46b0a7823a4fdcb43489663e90713ca7d698d#egg=django_softdelete,pytz==2019.1,sqlparse==0.3.0 >>>>> ---------------------------------------------------------------------- >>>>> Ran 14 tests in 6.744s >>>>> >>>>> py36-A installed: Django==1.8.19,-e >>>>> git+...@github.com:mark0978/django-softdelete.git@72b46b0a7823a4fdcb43489663e90713ca7d698d#egg=django_softdelete >>>>> ---------------------------------------------------------------------- >>>>> Ran 14 tests in 2.619s >>>>> >>>>> py36-B installed: Django==1.9.13,-e >>>>> git+...@github.com:mark0978/django-softdelete.git@72b46b0a7823a4fdcb43489663e90713ca7d698d#egg=django_softdelete >>>>> ---------------------------------------------------------------------- >>>>> Ran 14 tests in 2.835s >>>>> >>>>> py36-C installed: Django==1.10.8,-e >>>>> git+...@github.com:mark0978/django-softdelete.git@72b46b0a7823a4fdcb43489663e90713ca7d698d#egg=django_softdelete >>>>> ---------------------------------------------------------------------- >>>>> Ran 14 tests in 3.025s >>>>> >>>>> py36-D installed: Django==1.11.21,-e >>>>> git+...@github.com:mark0978/django-softdelete.git@72b46b0a7823a4fdcb43489663e90713ca7d698d#egg=django_softdelete,pytz==2019.1 >>>>> ---------------------------------------------------------------------- >>>>> Ran 14 tests in 3.147s >>>>> >>>>> py36-E installed: Django==2.0.13,-e >>>>> git+...@github.com:mark0978/django-softdelete.git@72b46b0a7823a4fdcb43489663e90713ca7d698d#egg=django_softdelete,pytz==2019.1 >>>>> ---------------------------------------------------------------------- >>>>> Ran 14 tests in 5.058s >>>>> >>>>> py36-F installed: Django==2.1.9,-e >>>>> git+...@github.com:mark0978/django-softdelete.git@72b46b0a7823a4fdcb43489663e90713ca7d698d#egg=django_softdelete,pytz==2019.1 >>>>> ---------------------------------------------------------------------- >>>>> Ran 14 tests in 5.722s >>>>> >>>>> py36-G installed: Django==2.2.2,-e >>>>> git+...@github.com:mark0978/django-softdelete.git@72b46b0a7823a4fdcb43489663e90713ca7d698d#egg=django_softdelete,pytz==2019.1,sqlparse==0.3.0 >>>>> ---------------------------------------------------------------------- >>>>> Ran 14 tests in 6.524s >>>>> >>>>> py37-A installed: Django==1.8.19,-e >>>>> git+...@github.com:mark0978/django-softdelete.git@72b46b0a7823a4fdcb43489663e90713ca7d698d#egg=django_softdelete >>>>> ---------------------------------------------------------------------- >>>>> Ran 14 tests in 2.584s >>>>> >>>>> py37-B installed: Django==1.9.13,-e >>>>> git+...@github.com:mark0978/django-softdelete.git@72b46b0a7823a4fdcb43489663e90713ca7d698d#egg=django_softdelete >>>>> ---------------------------------------------------------------------- >>>>> Ran 14 tests in 2.730s >>>>> >>>>> py37-C installed: Django==1.10.8,-e >>>>> git+...@github.com:mark0978/django-softdelete.git@72b46b0a7823a4fdcb43489663e90713ca7d698d#egg=django_softdelete >>>>> ---------------------------------------------------------------------- >>>>> Ran 14 tests in 2.892s >>>>> >>>>> py37-D installed: Django==1.11.21,-e >>>>> git+...@github.com:mark0978/django-softdelete.git@72b46b0a7823a4fdcb43489663e90713ca7d698d#egg=django_softdelete,pytz==2019.1 >>>>> ---------------------------------------------------------------------- >>>>> Ran 14 tests in 3.050s >>>>> >>>>> py37-E installed: Django==2.0.13,-e >>>>> git+...@github.com:mark0978/django-softdelete.git@72b46b0a7823a4fdcb43489663e90713ca7d698d#egg=django_softdelete,pytz==2019.1 >>>>> ---------------------------------------------------------------------- >>>>> Ran 14 tests in 5.117s >>>>> >>>>> py37-F installed: Django==2.1.9,-e >>>>> git+...@github.com:mark0978/django-softdelete.git@72b46b0a7823a4fdcb43489663e90713ca7d698d#egg=django_softdelete,pytz==2019.1 >>>>> ---------------------------------------------------------------------- >>>>> Ran 14 tests in 5.778s >>>>> >>>>> py37-G installed: -e >>>>> git+...@github.com:mark0978/django-softdelete.git@72b46b0a7823a4fdcb43489663e90713ca7d698d#egg=django_softdelete >>>>> ---------------------------------------------------------------------- >>>>> Ran 14 tests in 6.647s >>>>> >>>>> -- >>>> You received this message because you are subscribed to a topic in the >>>> Google Groups "Django users" group. >>>> To unsubscribe from this topic, visit >>>> https://groups.google.com/d/topic/django-users/XQit6Kf4ZRA/unsubscribe. >>>> To unsubscribe from this group and all its topics, send an email to >>>> django...@googlegroups.com. >>>> To post to this group, send email to django...@googlegroups.com. >>>> Visit this group at https://groups.google.com/group/django-users. >>>> To view this discussion on the web visit >>>> 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