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During data deduplication, on-disk fingerprint lookups lead to high disk traffic, resulting in a bottleneck. In this paper, we propose a “lazy” data deduplication method which buffers incoming fingerprints and performs on-disk lookups in batches, aiming to reduce the disk bottleneck. In deduplication in general, prefetching is used to improve the cache hit rate by exploiting locality within the incoming...
Backup technology based on data de-duplication has become a hot topic in nowadays. In order to get a better performance, traditional research is mainly focused on decreasing the disk access time. In this paper, we consider computing complexity problem in data de-duplication system, and try to improve system performance by reducing computing time. We put computing tasks on commodity coprocessor to...
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