Memory Allocator Skill
Overview
Expert skill for custom memory allocator design optimized for language runtime needs.
Capabilities
- Implement bump/arena allocators
- Implement free-list allocators with size classes
- Design slab allocators for fixed-size objects
- Implement thread-local allocation buffers (TLAB)
- Handle large object allocation strategies
- Implement memory pooling and recycling
- Design memory profiling and statistics
- Implement address space layout optimization
Target Processes
- memory-allocator-design.js
- garbage-collector-implementation.js
- interpreter-implementation.js
- bytecode-vm-implementation.js
Dependencies
jemalloc, tcmalloc references
Usage Guidelines
- Size Classes: Design size classes to minimize internal fragmentation
- Thread Safety: Use thread-local allocation for hot paths
- Large Objects: Handle large objects separately from small allocations
- Profiling: Build allocation statistics from the start
- GC Integration: Design allocator API with GC integration in mind
Output Schema
{
"type": "object",
"properties": {
"allocatorType": {
"type": "string",
"enum": ["bump", "free-list", "slab", "hybrid"]
},
"sizeClasses": {
"type": "array",
"items": { "type": "integer" }
},
"threadSafety": {
"type": "string",
"enum": ["single-threaded", "tlab", "lock-free"]
},
"generatedFiles": {
"type": "array",
"items": { "type": "string" }
}
}
}