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  1. ; ; ; (, PLDI 2019)
    Programs written in C/C++ can suffer from serious memory fragmentation, leading to low utilization of memory, de- graded performance, and application failure due to memory exhaustion. This paper introduces Mesh, a plug-in replace- ment for malloc that, for the first time, eliminates fragmen- tation in unmodified C/C++ applications. Mesh combines novel randomized algorithms with widely-supported virtual memory operations to provably reduce fragmentation, break- ing the classical Robson bounds with high probability. Mesh generally matches the runtime performance of state-of-the- art memory allocators while reducing memory consumption; in particular, it reduces the memory of consumption of Fire- fox by 16% and Redis by 39%. 
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