DULO: An Effective Buffer Cache Management Scheme to Exploit Both Export

@inproceedings{citeulike:4453903, abstract = {Sequentiality of requested blocks on disks, or their spatial locality, is critical to the performance of disks, where the throughput of accesses to sequentially placed disk blocks can be an order of magnitude higher than that of accesses to randomly placed blocks. Unfortunately, spatial locality of cached blocks is largely ignored and only temporal locality is considered in system buffer cache management. Thus, disk performance for workloads without dominant sequential accesses can be seriously degraded. To address this problem, we propose a scheme called DULO (DUal LOcality), which exploits both temporal and spatial locality in buffer cache management. Leveraging the filtering effect of the buffer cache, DULO can influence the I/O request stream by making the requests passed to disk more sequential, significantly increasing the effectiveness of I/O scheduling and prefetching for disk performance improvements.}, author = {Spatial, Temporal A. and Jiang, Song}, booktitle = {In USENIX Conference on File and Storage Technologies (FAST}, citeulike-article-id = {4453903}, citeulike-linkout-0 = {http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.62.416}, keywords = {caching-buffering, distributedfs, fsperformance}, posted-at = {2009-05-03 10:18:57}, priority = {2}, title = {DULO: An Effective Buffer Cache Management Scheme to Exploit Both}, url = {http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.62.416}, year = {2005} }

TY - CONF ID - citeulike:4453903 L3 - citeulike-article-id:4453903 N2 - Sequentiality of requested blocks on disks, or their spatial locality, is critical to the performance of disks, where the throughput of accesses to sequentially placed disk blocks can be an order of magnitude higher than that of accesses to randomly placed blocks. Unfortunately, spatial locality of cached blocks is largely ignored and only temporal locality is considered in system buffer cache management. Thus, disk performance for workloads without dominant sequential accesses can be seriously degraded. To address this problem, we propose a scheme called DULO (DUal LOcality), which exploits both temporal and spatial locality in buffer cache management. Leveraging the filtering effect of the buffer cache, DULO can influence the I/O request stream by making the requests passed to disk more sequential, significantly increasing the effectiveness of I/O scheduling and prefetching for disk performance improvements. TI - DULO: An Effective Buffer Cache Management Scheme to Exploit Both T2 - In USENIX Conference on File and Storage Technologies (FAST KW - caching-buffering KW - distributedfs KW - fsperformance AU - Spatial, Temporal AU - Jiang, Song PY - 2005/// UR - http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.62.416 ER -