Hagmann, R. Medium Term Virtual Memory Replacement. In Proceeding of the Third Workshop on Workstation Operating Systems, pp. 142--147, April 1992.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....detrimentally affected by them. Stonebraker [Stonebraker 81] noted that LRU can behave poorly for managing database buffer pages (a topic revisited in Section 4) and other researchers have examined particular reference patterns, noting their adverse behavior when being serviced by the LRU policy [Hagmann 92] To improve performance in these situations, systems researchers have designed a number of flexible memory management schemes. These approaches include automatically adaptive policies, hinting schemes, pin and flush directives, and user level implemented replacement policies. Automatically ....

Robert B. Hagmann. Medium Term Virtual Memory Replacement. In Proceedings of 3rd IEEE Workshop on Workstation Operating Systems, pages 142--147, Key Biscayne, Florida, April 1992.

....this problem will not improve with time: the performance of these applications will continue to deteriorate as the relative performance of disks continues to get slower. One possible solution would be to try to develop a hero virtual memory system that performs well for these programs (see [Hagmann 1992] for an attempt) The difficulty in developing such a system is that the operating system page replacement policy must balance the needs of all applications. Any change that benefits those programs that perform poorly under LRU may have an adverse effect on the performance of the vast majority of ....

....While this may appear attractive because memory is increasingly inexpensive, application programmers often would like to scale to even larger data set sizes. So, irrespective of the amount of physical memory, there will always be problems which require more memory than the hardware can support [Hagmann 1992]. ffl Bypass the operating system s virtual memory system by pinning a pool of the application s pages into physical memory [Stonebraker 1981] User code explicitly manages the buffer pool as a cache for disk by deciding which disk pages get swapped into main memory. This can require large ....

Hagmann, R. Medium Term Virtual Memory Replacement. In Proceeding of the Third Workshop on Workstation Operating Systems, pp. 142--147, April 1992.

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Hagmann, R. Medium Term Virtual Memory Replacement. In Proceeding of the Third Workshop on Workstation Operating Systems, pp. 142--147, April 1992.

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