uv Resolver Optimization Significantly Boosts Speed

charliermarsh · x · 2026-07-10

The uv team discovered an optimization for their dependency resolver, boosting Jupyter startup/parsing speeds by 13% and accelerating Boto3 (which suffers from heavy backtracking) by 2.4x. The author found the optimization interesting enough to write a dedicated technical postmortem.

Related event: uv Resolver Achieves Significant Speedup Based on PubGrub(2 posts)→

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