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63f7f65190
This copies the allocator configuration used in the Ruff project. In
particular, this gives us an instant 10% win when resolving the top 1K
PyPI packages:
$ hyperfine \
"./target/profiling/puffin-dev-main resolve-many --cache-dir
cache-docker-no-build --no-build pypi_top_8k_flat.txt --limit 1000 2>
/dev/null" \
"./target/profiling/puffin-dev resolve-many --cache-dir
cache-docker-no-build --no-build pypi_top_8k_flat.txt --limit 1000 2>
/dev/null"
Benchmark 1: ./target/profiling/puffin-dev-main resolve-many --cache-dir
cache-docker-no-build --no-build pypi_top_8k_flat.txt --limit 1000 2>
/dev/null
Time (mean ± σ): 974.2 ms ± 26.4 ms [User: 17503.3 ms, System: 2205.3
ms]
Range (min … max): 943.5 ms … 1015.9 ms 10 runs
Benchmark 2: ./target/profiling/puffin-dev resolve-many --cache-dir
cache-docker-no-build --no-build pypi_top_8k_flat.txt --limit 1000 2>
/dev/null
Time (mean ± σ): 883.1 ms ± 23.3 ms [User: 14626.1 ms, System: 2542.2
ms]
Range (min … max): 849.5 ms … 916.9 ms 10 runs
Summary
'./target/profiling/puffin-dev resolve-many --cache-dir
cache-docker-no-build --no-build pypi_top_8k_flat.txt --limit 1000 2>
/dev/null' ran
1.10 ± 0.04 times faster than './target/profiling/puffin-dev-main
resolve-many --cache-dir cache-docker-no-build --no-build
pypi_top_8k_flat.txt --limit 1000 2> /dev/null'
I was moved to do this because I noticed `malloc`/`free` taking up a
fairly sizeable percentage of time during light profiling.
As is becoming a pattern, it will be easier to review this
commit-by-commit.
Ref #396 (wouldn't call this issue fixed)
-----
I did also try adding a `smallvec` optimization to the
`Version::release` field, but it didn't bare any fruit. I still think
there is more to explore since the results I observed don't quite line
up with what I expect. (So probably either my mental model is off or my
measurement process is flawed.) You can see that attempt with a little
more explanation here:
|
||
|---|---|---|
| .. | ||
| bench | ||
| distribution-filename | ||
| gourgeist | ||
| install-wheel-rs | ||
| pep440-rs | ||
| pep508-rs | ||
| platform-host | ||
| platform-tags | ||
| puffin-build | ||
| puffin-cache | ||
| puffin-cli | ||
| puffin-client | ||
| puffin-dev | ||
| puffin-dispatch | ||
| puffin-distribution | ||
| puffin-git | ||
| puffin-installer | ||
| puffin-interpreter | ||
| puffin-normalize | ||
| puffin-resolver | ||
| puffin-traits | ||
| puffin-workspace | ||
| pypi-types | ||
| requirements-txt | ||
| README.md | ||
Crates
pep440-rs
Utilities for interacting with Python version numbers and specifiers.
pep508-rs
Utilities for interacting with PEP 508 dependency specifiers.
platform-host
Functionality for detecting the current platform (operating system, architecture, etc.).
platform-tags
Functionality for parsing and inferring Python platform tags as per PEP 425.
puffin-cli
Command-line interface for the Puffin package manager.
puffin-client
Client for interacting with PyPI-compatible HTTP APIs.
puffin-installer
Functionality for installing Python packages into a virtual environment.
puffin-interpreter
Functionality for detecting and leveraging the current Python interpreter.
puffin-package
Types and functionality for working with Python packages, e.g., parsing wheel files.
puffin-resolver
Functionality for resolving Python packages and their dependencies.
distribution-filename
Functionality for parsing wheel filenames as per PEP 427.