prefetching 中文意思是什麼
prefetching
解釋
預讀-
An spn - based integrated model for web prefetching and caching
基於spn的web預取和緩存一體化模型研究 -
The first one is an email - receiving algorithm, which provides a better way to resolve the contradiction between limited storage space and system capacity. the second one is an email - prefetching algorithm
首先，針對嵌入式郵件客戶端郵件接收能力有限的問題，本文給出了一種有限郵件接收演算法，該演算法較好地平衡了有限的存儲空間和系統可用性之間的矛盾。 -
Because of the number of table scans and table sorts in the tpc - h workload, prefetching data from disks into memory is important for optimal performance
因為tpc - h工作負載中表掃描和表排序的數量較多，所以為獲得最佳性能將數據從磁盤預取到內存是很重要的。 -
Web prefetching and web caching are the primary approaches to reducing the user perceived access latency and improving the quality of services
預取技術與緩存技術相結合則能夠進一步提高緩存命中率，大幅度減少用戶的訪問延時，從而提高www服務質量。 -
The performance metrics, access latency, throughput, hr hit ratio and bhr byte hit ratio are analyzed and discussed. simulations show that compared with caching only model, iwpcm can further improve the throughput, hr and bhr efficiently and reduce the access latency. the performance evaluation based on the spn model can provide a basis for implementation of web prefetching and caching and the combination of web prefetching and caching holds the promise of improving the qos of web systems
對于緩存命中率和位元組命中率等性能指標，使用基於一階ppm prediction by partial match預測演算法，通過四種典型的緩存替換策略gdsf greedy dual size frequency ， gdsize greedy dual size ， lfu least frequently used ， lru least recently used在僅緩存模型和一體化模型中的應用驗證了一體化模型比僅緩存技術具有更好的性能。 -
Maxpgahead is the upper limit for aix file system prefetching so it affects efficiency when doing large scans and i o on sms or dms file containers
Maxpgahead是aix系統預取的上限，所以當對sms或dms文件容器做大的掃描或i / o時，它會影響效率。 -
When prefetching occurs, prefetchsize is an important tunable parameter
在進行預取時，預取大小是一個極其重要的可調參數。 -
Wei l, gu z. spn model for web prefetching and caching. in proc. 1st int
理論分析和實驗結果為web預取和緩存一體化模型的實施提供了依據。 -
Fractal prefetching b - trees : optimizing both cache and disk performance. in proc
實驗結果還表明， minitasking的參數配置基本上和查詢類型無關。 -
Db2 uses prefetching when sequential i o is appropriate and it determines that prefetching may improve performance
在適合進行連續i / o以及確定預取可以提高性能時， db2將使用預取。 -
We have developed the active proxy on top of the wbi environment and experimented different prefetching algorithms
我們在wbi環境底下架構了不同預先抓取演演算法的有效的代理伺服器。 -
References 1 park k, song m, hwang c. broadcasting and prefetching schemes for location dependent information services
除此之外，查詢處理的性能還取決于數據廣播的順序以及廣播數據的組織。 -
In this thesis, we implement an active proxy system for web mail that provides advanced functions such as prefetching and filtering
在本文中，我們針對網頁郵件提供一個可以預先抓取和過濾的先進作用的有效的代理伺服器系統。 -
4. to decrease the usage of network resources by network management systems even more, combined with the fact that the performance of network management is affected by the scheme to collect management information, a new algorithm - gpa ( group - prefetching algorithm ) has been put forward used for retrieving management information from the element level in heterogeneous wan ( wide area network ). gpa can adjust many little retrieving objects into one prefetching group to access by using the schemes of group prefetching, objects of group changed self - adaptively, fault tolerance etc., and thus can decrease the frequency of retrieval, use fewer network resources and decrease the network overhead without alteration of iiop, snmp or cmip too
4 .為進一步減少網路管理系統對網路帶寬的佔用，結合被管對象信息的收集策略直接影響網管系統性能的特點，針對異構大型網路環境下多管理對象的信息收集問題，提出了一種提取多管理對象信息的新演算法?組預取演算法gpa （ group一prefetehingalgorithim ） ，該演算法同樣能在不改變管理協議，如iiop 、 snmp或cmip的情況下，採用組預取策略、組對象自適應擴充策略、組對象自適應收縮策略、容錯策略等，將多個分散的、處于相同或不同被管設備上的、在未來一段時間內的管理對象的訪問組合在一個預取組中進行訪問，減少對管理對象的訪問頻度，從而可以較少佔用網路資源，減小整個網路開銷。 -
And then, it gives some useful approaches of program transformation to reduce cache conflicts, and concludes three accessing modes in multi - media applications to prepare for the further study of stream cache prefetching technologies. this paper also introduces a data allocation approach to scratch - pad sram, with the purpose of improving cache hit rate
討論了常用的提高數據時空局部性的程序變換方法以降低cache失效率，並針對多媒體領域應用程序的特點，總結了三種多媒體常見存儲訪問模式，為進一步研究並向dpc存儲系統加入流cache的預取技術奠定了基礎。
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