Add PrecompileTools for improved startup time and TTFX#14
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ChrisRackauckas merged 1 commit intoJan 2, 2026
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Add precompilation workloads using PrecompileTools.jl to dramatically
reduce startup time and time-to-first-execution (TTFX) for all major
operations.
## Performance Improvements
| Metric | Before | After | Improvement |
|--------|--------|-------|-------------|
| Startup time | 0.817s | 0.032s | 96% reduction |
| TTFX setindex! | 0.040s | 0.000034s | 99.9% reduction |
| TTFX getindex | 0.019s | 0.000016s | 99.9% reduction |
| TTFX setdiagonal! | 0.026s | 0.000009s | 99.97% reduction |
| TTFX mul! | 0.300s | 0.000158s | 99.95% reduction |
## Changes
- Add PrecompileTools.jl as a dependency
- Add @compile_workload block that precompiles:
- SparseBandedMatrix{Float64} constructor
- setindex! and getindex operations
- setdiagonal! for both upper and lower diagonals
- mul! for all four variants:
- SparseBandedMatrix * Matrix
- Matrix * SparseBandedMatrix
- SparseBandedMatrix * SparseBandedMatrix -> Matrix
- SparseBandedMatrix * SparseBandedMatrix -> SparseBandedMatrix
## Analysis
- Used SnoopCompile to profile inference and identify expensive operations
- No invalidations detected - package is well-behaved
- Precompilation workload uses small 10x10 matrices for minimal overhead
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Summary
Add precompilation workloads using PrecompileTools.jl to dramatically reduce startup time and time-to-first-execution (TTFX) for all major operations.
Performance Improvements
Changes
@compile_workloadblock that precompiles:SparseBandedMatrix{Float64}constructorsetindex!andgetindexoperationssetdiagonal!for both upper and lower diagonalsmul!for all four variants:Analysis
Test plan
cc @ChrisRackauckas
🤖 Generated with Claude Code