Unioning of the Buffer Cache and Journaling Layers with Non-volatile Memory | USENIX

Eunji Lee and Hyokyung Bahn, Ewha University; Sam H. Noh, Hongik University Awarded Best Paper! Journaling techniques are widely used in modern file systems as they provide high reliability and fast recovery from system failures. However, it reduces the performance benefit of buffer caching as journaling accounts for a bulk of the storage writes in real system environments. In this paper, we prese

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従来のbuffer cacheをnon-volatile memoryにすることで、FS側にjournalが不要になって高速化できるという話。