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Explore a conference talk from FAST '24 that introduces RFUSE, a novel userspace filesystem framework designed to modernize and enhance performance through scalable kernel-userspace communication. Learn about the challenges of implementing new features in in-kernel filesystems and how userspace filesystems, particularly FUSE, have gained attention as an alternative. Discover how RFUSE addresses the performance overhead issues of FUSE by utilizing a per-core ring buffer structure for communication, minimizing transmission overhead, and enabling compatibility with existing FUSE-based filesystems. Gain insights into the evaluation results showing RFUSE's comparable throughput to in-kernel filesystems on high-performance devices and its high scalability in both data and metadata operations.
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