# Slow initial run (mypy):
❯ rm -r .mypy_cache
❯ time mypy --cache-fine-grained .
mypy --cache-fine-grained . 82.04s user 9.06s system 97% cpu 1:33.69 total
# Faster cached run (mypy)
❯ time mypy --cache-fine-grained .
mypy --cache-fine-grained . 45.68s user 6.77s system 95% cpu 54.732 total
# Slow initial run (daemon)
❯ dmypy stop
❯ time dmypy run .
dmypy run . 0.32s user 0.31s system 0% cpu 1:23.13 total
# Faster cached run (daemon)
❯ time dmypy run .
dmypy run . 0.08s user 0.06s system 12% cpu 1.124 total
# Initial run using mypy cache (daemon)
❯ dmypy stop
❯ time dmypy run . -- --use-fine-grained-cache
# Nothing happening for at least 10 minutes...
According to the docs (https://mypy.readthedocs.io/en/stable/additional_features.html?highlight=caching#caching-with-mypy-daemon) enabling the fine grained cache should help speed up initial mypy runs. However, this doesn't seem to be working, and
dmypyseems to hang when using it: