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471a1d657d
## Summary This PR enables the proof-of-concept resolver to backtrack by way of using the `pubgrub-rs` crate. Rather than using PubGrub as a _framework_ (implementing the `DependencyProvider` trait, letting PubGrub call us), I've instead copied over PubGrub's primary solver hook (which is only ~100 lines or so) and modified it for our purposes (e.g., made it async). There's a lot to improve here, but it's a start that will let us understand PubGrub's appropriateness for this problem space. A few observations: - In simple cases, the resolver is slower than our current (naive) resolver. I think it's just that the pipelining isn't as efficient as in the naive case, where we can just stream package and version fetches concurrently without any bottlenecks. - A lot of the code here relates to bridging PubGrub with our own abstractions -- so we need a `PubGrubPackage`, a `PubGrubVersion`, etc.
27 lines
740 B
Bash
Executable file
27 lines
740 B
Bash
Executable file
#!/usr/bin/env sh
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###
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# Benchmark the resolver against `pip-compile`.
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#
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# Example usage:
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#
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# ./scripts/benchmarks/compile.sh ./scripts/benchmarks/requirements.in
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###
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set -euxo pipefail
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TARGET=${1}
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###
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# Resolution with a cold cache.
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###
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hyperfine --runs 20 --warmup 3 --prepare "rm -f /tmp/requirements.txt" \
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"./target/release/puffin --no-cache compile ${TARGET} > /tmp/requirements.txt" \
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"./target/release/main --no-cache compile ${TARGET} > /tmp/requirements.txt"
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###
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# Resolution with a warm cache.
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###
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hyperfine --runs 20 --warmup 3 --prepare "rm -f /tmp/requirements.txt" \
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"./target/release/puffin compile ${TARGET} > /tmp/requirements.txt" \
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"./target/release/main compile ${TARGET} > /tmp/requirements.txt"
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