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oai:www.ideals.illinois.edu:2142/23801 2023-07-10 col_2142_5131 col_2142_10761 com_2142_5130 com_2142_10755 com_2142_234

Torrellas, Josep Xia, Chun 2011-05-07T14:27:34Z 2011-05-07T14:27:34Z 10000-01-01 1996 With the increasing gap between processor speed and memory speed, a sophisticated memory hierarchy is key to high performance. However, the operating system tends to use the memory hierarchy poorly. This thesis presents a comprehensive characterization and optimization of the performance of multiprocessor memory hierarchies for operating systems. The operating system instruction cache misses are reduced by 81% using a code reorganization scheme tailored to the operating system, guarded sequential prefetching, and stream buffers. The operating system data cache misses are reduced by 53% using a DMA-like pipelined block transfer engine, a selective update protocol, data relocation and privatization, and data prefetching in miss hot spots. The overall OS time is reduced by 32%. The cost-performance trade-offs of the software/hardware optimization schemes are also discussed. Made available in DSpace on 2011-05-07T14:27:34Z (GMT). No. of bitstreams: 2 license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5) 9702719.pdf: 7263634 bytes, checksum: d2ff20e11da17cc1d8393dfe8c2d45de (MD5) Previous issue date: 1996 Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding (hding2@illinois.edu) on 2011-05-07T15:06:56Z Item is restricted indefinitely. Restriction data tranferred 2014-07-01T11:32:10-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: ETDs are only available to UIUC Users without author permission ETDs are only available to UIUC Users without author permission U of I Only 9780591089219 AAI9702719 (UMI)AAI9702719 http://hdl.handle.net/2142/23801 eng Copyright 1996 Xia, Chun Engineering, Electronics and Electrical Computer Science Exploiting multiprocessor memory hierarchies for operating systems text Engineering, Electronics and Electrical Computer Science Engineering, Electronics and Electrical Computer Science University of Illinois at Urbana-Champaign Dissertation Ph.D.