File system prefetching has been widely studied and used to hide high latency of disk I/O. However, there are very few algorithms that explicitly take the file access rate or burstiness into account to distribute resources, especially the prefetching memory. In this work we draw parallels between file system prefetching and the field of Supply Chain Management (SCM), particularly Inventory Theory. We further describe two very commonly used algorithms in SCM that directly address access rate and uncertainty. We also implement these prefetching algorithms in the Linux kernel and present the performance results of using these algorithms. Our results show that with these SCM-based algorithms, we can improve the throughput of standard Linux file transfer applications by up to 33% and the throughput of some server workloads (such as Video-on-Demand) by up to 41%.
| Identifer | oai:union.ndltd.org:NCSU/oai:NCSU:etd-12112008-154909 |
| Date | 06 January 2009 |
| Creators | Kulkarni, Amit Vasant |
| Contributors | Dr. Xiaosong Ma, Dr. Vincent W. Freeh, Dr. Edward W. Davis |
| Publisher | NCSU |
| Source Sets | North Carolina State University |
| Language | English |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://www.lib.ncsu.edu/theses/available/etd-12112008-154909/ |
| Rights | unrestricted, I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dis sertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to NC State University or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report. |
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