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e843433b07
Reduce the overhead of `uv run` in large workspaces. Instead of
re-discovering the entire workspace each time we resolve the metadata of
a member, we can the discovered set of workspace members. Care needs to
be taken to not cache the discovery for `uv init`, `uv add` and `uv
remove`, which change the definitions of workspace members.
Below is apache airflow e3fe06382df4b19f2c0de40ce7c0bdc726754c74 `uv run
python` with a minimal payload. With this change, we avoid a ~350ms
overhead of each `uv run` invocation.
```
$ hyperfine --warmup 2 \
"uv run --no-dev python -c \"print('hi')\"" \
"uv-profiling run --no-dev python -c \"print('hi')\""
Benchmark 1: uv run --no-dev python -c "print('hi')"
Time (mean ± σ): 492.6 ms ± 7.0 ms [User: 393.2 ms, System: 97.1 ms]
Range (min … max): 482.3 ms … 501.5 ms 10 runs
Benchmark 2: uv-profiling run --no-dev python -c "print('hi')"
Time (mean ± σ): 129.7 ms ± 2.5 ms [User: 105.4 ms, System: 23.2 ms]
Range (min … max): 126.0 ms … 136.1 ms 22 runs
Summary
uv-profiling run --no-dev python -c "print('hi')" ran
3.80 ± 0.09 times faster than uv run --no-dev python -c "print('hi')"
```
The profile after those change below. We still spend a large chunk in
toml parsing (both `uv.lock` and `pyproject.toml`), but it's not
excessive anymore.
50 lines
1.3 KiB
TOML
50 lines
1.3 KiB
TOML
[package]
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name = "uv-build-frontend"
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version = "0.0.1"
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description = "Build wheels from source distributions"
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edition = { workspace = true }
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rust-version = { workspace = true }
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homepage = { workspace = true }
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documentation = { workspace = true }
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repository = { workspace = true }
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authors = { workspace = true }
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license = { workspace = true }
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[lib]
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doctest = false
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[lints]
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workspace = true
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[dependencies]
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uv-configuration = { workspace = true }
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uv-distribution = { workspace = true }
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uv-distribution-types = { workspace = true }
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uv-fs = { workspace = true }
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uv-pep440 = { workspace = true }
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uv-pep508 = { workspace = true }
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uv-pypi-types = { workspace = true }
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uv-python = { workspace = true }
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uv-static = { workspace = true }
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uv-types = { workspace = true }
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uv-virtualenv = { workspace = true }
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uv-warnings = { workspace = true }
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uv-workspace = { workspace = true }
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anstream = { workspace = true }
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fs-err = { workspace = true }
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indoc = { workspace = true }
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itertools = { workspace = true }
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owo-colors = { workspace = true }
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regex = { workspace = true }
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serde = { workspace = true }
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serde_json = { workspace = true }
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tempfile = { workspace = true }
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thiserror = { workspace = true }
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tokio = { workspace = true }
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toml_edit = { workspace = true }
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tracing = { workspace = true }
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rustc-hash = { workspace = true }
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[dev-dependencies]
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insta = { version = "1.40.0" }
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