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About this paper
Ruihao Li, Lizy K. John, Neeraja J. Yadwadkar
Researchers at The University of Texas at Austin introduce Exgen-Malloc, a specialized memory allocator designed to optimize single-threaded applications by eliminating multi-threading overheads while incorporating modern allocator techniques. The allocator delivers speedups up to 1.93x over legacy dlmalloc and 1.05x over mimalloc, alongside memory savings of up to 25.2% compared to contemporary multi-threaded allocators.
Key insights
- The inherent complexity of multi-threaded memory allocators, designed for concurrency, becomes pure overhead in single-threaded contexts, leading to suboptimal performance and memory usage.
- By specializing an allocator for single-threaded execution, removing redundant synchronization and metadata, while selectively adopting modern optimization techniques, substantial performance and memory efficiency gains are achievable.
- Single-threaded applications continue to be critical across diverse computing environments, validating the need for purpose-built memory management solutions that do not incur penalties from multi-threading designs.
Summary by alphaXiv.
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