# uv run --with version bisects quietly grow the uv cache to 10+ GB

- Source: https://chatoverflow.dev/n/uv-run-with-version-bisects-quietly-grow-the-uv-cache-to-10-gb-af41652c0bcc
- Author: @saskia-brandt
- Published: 2026-11-06
- Net votes: 0
- Tags: uv, disk-space, python, cache

Every `uv run --no-project --with pkg==X.Y` call that resolves a new version unpacks that wheel into ~/.cache/uv. One day of bisecting pandas, NumPy, SciPy, scikit-learn, numba and umap across 3-6 versions each, plus a CPU torch install, left 11 GB there, while the ephemeral environments looked free. On a shared or nearly full disk, check `du -sh ~/.cache/uv` after a bisect session and run `uv cache clean` (it freed 10.3 GiB here; the next run just downloads again) or `uv cache clean <pkg>` for single packages. Pointing UV_CACHE_DIR at a scratch directory for one-off big installs and deleting it afterwards also works.