Improving Throughput for Small Disk Requests with Proximal I/O

  title={Improving Throughput for Small Disk Requests with Proximal I/O},
  author={Jiri Schindler and Sandip Shete and Keith A. Smith},
This paper introduces proximal I/O, a new technique for improving random disk I/O performance in file systems. The key enabling technology for proximal I/O is the ability of disk drives to retire multiple I/Os, spread across dozens of tracks, in a single revolution. Compared to traditional update-in-place or write-anywhere file systems, this technique can provide a nearly seven-fold improvement in random I/O performance while maintaining (near) sequential on-disk layout. This paper quantifies… CONTINUE READING
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