cache logic 中文意思是什麼
cache logic
解釋
超高速緩沖存儲器邏輯-
Jx5 is a complex microprocessor, which contains cache, microcode rom, instruction prefetch unit, instruction decode unit, integer unit, mmx unit, floating point unit, page unit, bus unit, dp logic, apic and so on. it is very difficulty to test a such complicated microprocessor and receive anticipative fault coverage ratio. so, we must add dft in cpu ’ design
Jx5微處理器是一款結構異常復雜的微處理器，它的內部包含有: cache 、微碼rom 、指令預取部件和動態分支預測部件、指令譯碼部件、整數部件、多媒體部件、浮點部件、分段和分頁部件、總線介面部件、雙處理器介面部件、可編程中斷控制部件等。 -
Through the implementing of kernel level file and cache mechanism at the client side, this newly proposed distributed network file system provides seamless network file access and reduces the performance decline caused by network transmission. utilizing the concept of logic block server, it provides the reliable data block storage and implements redundant storage capacity. utilizing the concept of the index server, it provide s the cost of the greatly for server and network during data access process and realizes the computing with balancing capacity
在客戶端通過實現內核級文件的調用和緩沖機制，實現了文件的無縫網路存取，並減少由於網路傳輸帶來的性能下降的影響；利用邏輯塊服務器實現邏輯塊的冗餘存取，實現數據塊的安全存放；利用索引服務器進行負載均衡計算，實現資料存取的較低網路和服務器開銷；利用索引服務器實現服務器組的零管理，使該系統具有高效性、穩定性和可伸縮性。 -
There are three layers in deltafile, virtual file system 、 logic file system and buffer cache. besides, deltafile provides the posix api interface
為了對用戶透明的實現多種不同文件系統支持的功能， deltafile中採用了虛擬文件系統和邏輯文件系統相分離的體系結構。 -
The goal we must achieve, when designing distributed parallel file system, was analyzed also. the thesis present the logic structure of dpfs, the structure and the flush strategy of the module of directory cache and its role in the read - write operation, duplicate table ' s physical and logical structure, the management and synchronization algorithm of the duplicate table, and the model and the management algorithm of the module of intelligent duplicate management. also the effects that dpfs exerts to the system reliability and the read and write performance compared to ext2 were analyzed
本文首先介紹了數據存儲的發展概況與新的需求，分散式文件系統對其發展的重要影響以及設計分散式文件系統需要考慮的各種問題；然後分析了為滿足分散式并行服務器的功能需求， dpfs應實現的目標；接著介紹了dpfs設計的總體邏輯結構，目錄緩存管理模塊的結構設計、刷新策略以及該模塊在文件讀寫重定向中的作用，副本表的邏輯、物理結構、對其緩存的管理和同步演算法的實現，以及副本智能管理的設計模型及其管理演算法的設計與實現，還分析了dpfs對系統可靠性的影響以及在讀寫文件時與ext2文件系統性能的比較。 -
Bbl back - side bus logic. logic for interface to the back - side bus for accesses to the internal unified level two processor cache
後端總線邏輯。訪問內部統一二級處理器緩存的後端總線介面邏輯。 -
Pipelining and parallel technology, accompanying with fast fifo as cache memory, instead of direct program operation, are adopted in the scheme and increase the transmitting speed dramatically ; fpga ( field programmable gate array ) is applied to realize the complex control logic of the system and makes it integrative, flexible and fast ; 386ex based embedded system, along with vxworks real - time operating system is introduced to substitute the microcontroller based system to simplify the hardware design and enhance the overall performance of ssr, and will make the system more easier to be applied to the projects in the future
該設計方案採用了流水線和并行技術，配以快速fifo緩存的方式取代了直接對flash進行編程的方式，極大地提高了閃存晶元存儲數據的速率；採用fpga技術實現系統的主要控制邏輯，集成度高、靈活性好、速度快；採用基於386ex的嵌入式系統及基於vxworks的嵌入式實時操作系統，取代單片機系統及其編程，提高了系統的整體性能，減輕了硬體設計的負擔，且使系統研發的延續性好。
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