@InProceedings{patterson:pdis-tip, author = {R. Hugo Patterson and Garth A. Gibson}, title = {Exposing {I/O} Concurrency with Informed Prefetching}, booktitle = {Proceedings of the Third International Conference on Parallel and Distributed Information Systems}, year = {1994}, month = {September}, pages = {7--16}, later = {patterson:informed}, URL = {http://www.cs.cmu.edu/afs/cs/project/pdl/ftp/TIP/PDIS.ps}, keywords = {prefetching, parallel I/O, pario-bib}, abstract = {Informed prefetching provides a simple mechanism for I/O-intensive, cache-ineffective applications to efficiently exploit highly-parallel I/O subsystems such as disk arrays. This mechanism, dynamic disclosure of future accesses, yields substantial benefits over sequential readahead mechanisms found in current file systems for non-sequen tial workloads. This paper reports the performance of the Transparent Informed Prefetching system (TIP), a minimal prototype implemented in a Mach 3.0 system with up to four disks. We measured reductions by factors of up to 1.9 and 3.7 in the execution time of two example applications: multi-file text search and scientific data visualization.}, comment = {Also available in HTML format at http://www.cs.cmu.edu/Web/Groups/PDL/HTML-Papers/PDIS94/final.fm.html.} }