PreFix
Optimizing the Performance of Heap-Intensive Applications.
PreFix is a performance optimization technique designed to improve the spatial locality of heap-intensive applications. It focuses on identifying a small number of “hot” heap objects—which frequently contribute to data cache misses—and segregating them into dedicated, preallocated memory regions.
Key Features
- Precision Identification: Uses a novel context mechanism to identify hot object allocation sites and dynamic hot objects with high precision.
- Preallocation: Redirects hot object allocations to predetermined locations within a preallocated memory region.
- Object Recycling: Reuses preallocated space for different objects whose lifetimes do not overlap.