LoopDelta - Embedding Locality-aware Opportunistic Delta Compression in Inline Deduplication for Highly Efficient Data Reduction

Explore an innovative approach to data reduction in this conference talk from USENIX ATC '23. Dive into LoopDelta, a novel technique that embeds locality-aware opportunistic delta compression in inline deduplication. Learn how this method addresses challenges in existing post-deduplication delta compression approaches for backup storage. Discover the four key techniques that comprise LoopDelta's enhanced delta compression scheme: dual-locality-based similarity tracking, locality-aware prefetching, cache-aware filtering, and inversed delta compression. Examine experimental results demonstrating significant improvements in compression ratios and restore performance without compromising backup throughput. Gain insights from researchers at Nanchang University, Huazhong University of Science and Technology, University of Texas at Arlington, and East China Jiaotong University as they present their findings on this highly efficient data reduction method.