poetry: 1.2 performance regression

I have searched the issues of this repo and believe that this is not a duplicate.
I have searched the documentation and believe that my question is not covered.

Issue

I mentioned this in Discord, but didn’t want it to get lost in the shuffle. I put together a Python package manager benchmark. I got a suggestion to add the current prerelease to the test suite.

Preliminary results showed the same operations taking ~2x the time vs. the non prerelease version. You can see results here: https://github.com/lincolnloop/python-package-manager-shootout/actions/runs/2705531257

Compare elapsed time between poetry and poetry-pre:

About this issue

Original URL
State: closed
Created 2 years ago
Comments: 16 (9 by maintainers)

Most upvoted comments

@radoering with the current poetry branch the total installation times got on par with the poetry v1.1.15:

dependency resolution stays at 0.8s
remaining installation time improved significantly or is even a bit faster than poetry v1.1.15

action	v1.1.5	v1.2	branch12
update dependencies	0.3s	0.8s	0.8s
clean install	13.5s	29s	13.s

Anyway, when I run the test with the poetry from branch 1.2, the second attempt got stuck and I had to kill it after 2 minutes. This happened only once, later attempts to repeat the installation did not fail.

Note: by “clean install” I mean

clean the virtualenv and poetry.lock file first $ rm -rf .venv *.lock
and then run the $ poetry install

vlcinsky on Sep 5, 2022