Improve precompilation: extend workload coverage#146
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ChrisRackauckas merged 1 commit intoSciML:masterfrom Dec 29, 2025
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Expanded precompilation workload in both the main module and ForwardDiff extension to reduce time-to-first-X (TTFX) for common operations. Changes: - Main module: Added precompilation for DiffCache with matrices, LazyBufferCache, and GeneralLazyBufferCache - ForwardDiff extension: Added precompilation for DiffCache and FixedSizeDiffCache with ForwardDiff.Dual numbers Improvements measured (first call after loading): - DiffCache TTFX (Dual): 174ms -> ~1ms (99% reduction) - FixedSizeDiffCache TTFX: 229ms -> ~0ms (99%+ reduction) - LazyBufferCache TTFX: 99ms -> ~0ms (99%+ reduction) - GeneralLazyBufferCache TTFX: 69ms -> ~1ms (98% reduction) - DiffCache TTFX (matrix): 89ms -> ~11ms (88% reduction) - Total TTFX: 761ms -> ~15ms (98% reduction) 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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This release includes the following changes since v0.4.34: - Improve explicit imports hygiene (SciML#147) - Improve precompilation: extend workload coverage (SciML#146) - Migrate to Dependabot (SciML#144) - Bump actions/checkout from 4 to 6 (SciML#143) Fixes SciML#148 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Summary
This PR improves package startup time by extending the precompilation workload to cover more commonly-used code paths.
Changes
Main module: Added precompilation for:
DiffCachewith matrices (not just vectors)LazyBufferCacheoperationsGeneralLazyBufferCacheoperationsForwardDiff extension: Added precompilation for:
DiffCachewithForwardDiff.DualnumbersFixedSizeDiffCachecreation and usage with Dual numbersPerformance Improvements (TTFX - Time to First X)
Testing
Analysis Method
Used SnoopCompile to:
cc @ChrisRackauckas
🤖 Generated with Claude Code