CrossPrefetch: Accelerating I/O Prefetching for Modern Storage Article Swipe

PDF

Related Concepts

Instruction prefetch Computer science Cache Parallel computing Lock (firearm) Overhead (engineering) Concurrency control Concurrency Distributed computing CPU cache Operating system Embedded system Database Database transaction Engineering Mechanical engineering

Shaleen Garg , Jian Zhang , Rekha Pitchumani , Manish Parashar , Bing Xie , Sudarsun Kannan ·

YOU? · · 2024 · Open Access · · DOI: https://doi.org/10.1145/3617232.3624872 · OA: W4394871742

We introduce CrossPrefetch, a novel cross-layered I/O prefetching mechanism that operates across the OS and a user-level runtime to achieve optimal performance. Existing OS prefetching mechanisms suffer from rigid interfaces that do not provide information to applications on the prefetch effectiveness, suffer from high concurrency bottlenecks, and are inefficient in utilizing available system memory. CrossPrefetch addresses these limitations by dividing responsibilities between the OS and runtime, minimizing overhead, and achieving low cache misses, lock contentions, and higher I/O performance.