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Leap-based Content Defined Chunking — Theory and Implementation

机译:基于飞跃的内容定义块-理论与实现

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Content Defined Chunking (CDC) is an important component in data deduplication, which affects both the deduplication ratio as well as deduplication performance. The sliding-window-based CDC algorithm and its variants have been the most popular CDC algorithms for the last 15 years. However, their performance is limited in certain application scenarios since they have to slide byte by byte. The authors present a leap-based CDC algorithm which provides significant improvement in deduplication performance without compromising the deduplication ratio. Compared to the sliding-window-based CDC algorithm, the new algorithm enables up to two-fold improvement in performance.
机译:内容定义块(CDC)是重复数据删除中的重要组成部分,它会影响重复数据删除率以及重复数据删除性能。在过去的15年中,基于滑动窗口的CDC算法及其变体已成为最受欢迎的CDC算法。但是,由于它们必须逐字节滑动,因此它们的性能在某些应用方案中受到限制。作者提出了一种基于leap跃的CDC算法,该算法可在不影响重复数据删除率的情况下显着提高重复数据删除性能。与基于滑动窗口的CDC算法相比,新算法可将性能提高多达两倍。

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