concurrency system 中文意思是什麼

concurrency system 解釋
并行系統
  • concurrency : 並發性
  • system : n 1 體系，系統；分類法；組織；設備，裝置。2 方式；方法；作業方法。3 制度；主義。4 次序，規律。5 ...
  1. The mdo provides a method that can improve product quality using the synergism in the engineering systems and reduce development time through the concurrency of system design

    其目的是利用系統中的協同機制獲得系統整體最優解，通過并行設計來縮短設計周期。
  2. Lock escalation is the process of converting many fine - grain locks into fewer coarse - grain locks, reducing system overhead while increasing the probability of concurrency contention

    鎖升級是將許多較細粒度的鎖轉換成數量更少的較粗粒度的鎖的過程，這樣可以減少系統開銷，但卻增加了並發爭用的可能性。
  3. The directed graph model of agvs is used to give a mathematical tool for the research of dispatching methods and routing algorithms of agvs ; the colored tempo - petri net system model of agvs is mainly used to describe the concurrency of agvs and the conflict of agvs

    有向圖模型主要于為通過模擬來研究自動導引車的調度方法和路由演算法提供了一個有效的數學工具；而有色時延petri網系統模型則主要用來在計算機模擬系統中描述agv之間的沖撞和agvs的並發特性。
  4. In the clustered system, the data nodes have strong independency. in order to improve the concurrency, we put forward a sort of redundant array of independent data node ( raidn ), which is similar to raid 5. we also discuss its fault tolerant and propose a parity extension algorithm called sequence - extend

    在我們提出的并行結構中，數據節點獨立性很強，為提高數據的並發度、負載平衡及容錯性，本文提出了一種類似raid5結構的獨立冗餘數據節點陣列raidn ，討論了系統的容錯性，並提出了一種稱為「順推法」的奇偶效驗位擴展演算法。
  5. Concurrency, executive - system

    執行系統同作
  6. This paper analyzes some key issues of cooperative editing system. and a concurrency control algorithm in a cooperative editing is introduced, which provides the stable and effective support for the cooperative editing system. it enhances flexibility, practicality and compatibility of the original cooperative editing system

    本文分析研究了協同編輯器需要解決的一些關鍵問題，設計和實現了z - office中協同編輯處理模塊的並發控制演算法，使協同編輯器具備了有效穩定的實時協同處理能力，並且提高了協同編輯器的靈活性、實用性和通用性。
  7. So it is necessary to introduce a new method and a new mechanism to describe real - tme concurrency. in this paper, we introduce a new modeling method which is base on some new model element according to the real - time system charactetistic

    本文針對實時系統中進程的特點，採用uml的擴展機制，提出了一種新的用於表示實時系統並發性的模型元素以及採用這些元素建立系統模型的方法。
  8. 4. concurrency control system implementation corresponding to the collaborative design model, a concurrency control system is designed and implemented partly to apply the concurrency control mechanism discussed above to support collaborative design

    （ 4 ）並發控制系統實現針對所提出的協同模型，運用所研究的並發控制機制，設計和部分實現了一個支持協同設計的並發控制系統。
  9. 2. concurrency control in collaborative design combined with the property of engineering design and developed from the research of traditional concurrency control policies, a queuing str8tegy for concurrency control system is presented, which satisfies the real - time requirements

    （ 2 ）協同設計中的並發控制結合工程設計的特點，基於樹形模型，在傳統的並發控制策略的研究基礎之上，提出一種滿足實時性要求的並發控制機制。
  10. Finaly, we provide a proposal of constructing foundation class libration of c + + according to semantic of capsule and protocol, as well as the method to construct the domain class derived from the foundation class. it enable us to construct a formal model for real - time system concurrency which is the foundation of generation of code and also to validate system by formal analyse method

    從而使得我們能夠利用這些元素在模型層建立關於一個具體的實時系統的並發性的形式化的uml模型，並可以利用形式化的方法來分析和驗證系統的正確性，同時也對系統運行代碼的自動生產奠定了基礎。
  11. In distributed system which is created by the replication technology of sql - server, users can access, update both local data and remote replicative data. but because of the delay through network, local concurrency mechanism ca n ' t be aware of real - time operational status of other computers. even if there are conflicts in the system, each site ca n ' t gain real - time information

    利用sql - server的復制技術構建的分散式應用系統中，用戶可以訪問、更新本地的及復制到本地的數據，由於網路傳輸上的延遲，系統的並發控制機制不可能實時地了解其它計算機上的操作情況，即使發生沖突，也不可能實時得到反饋。
  12. On the basis of active real - time theory, we analyze the practical application of the active real - time database technology to the power monitor system. in the article, the architecture of the power active real - time monitor system was presented, then three key technology was discussed in detail such as active real - time transaction dispatching, the concurrency control and the event detecting and handle in active real - time database

    在建立了主動實時監控理論的基礎上，進一步分析了主動實時數據庫技術在電網監控系統的具體應用，給出了電網主動實時監控系統的體系結構，詳細討論了如何實現該體系機構中的主動實時事務調度、主動實時數據庫的並發控制以及事件的探測和處理三大關鍵技術。
  13. Linux uses the monolithic approach that defines a set of primitives or system calls to implement operating system services such as process management, concurrency, and memory management in several modules that run in supervisor mode

    Linux使用的是單一整體式結構（ monolithic ） ，其中定義了一組原語或系統調用以實現操作系統的服務，例如在幾個模塊中以超級模式運行的進程管理、並發控制和內存管理服務。
  14. Concurrency : the number of replication processes that can operate on a system simultaneously

    並發：可以在系統上同時運行的復制進程數。
  15. As the application of distributed computing is used much more widely ， distributed database becomes a significant part of information management it avoids a lot of disadvantages of conventional centralized database ， and is applicable to many situations distributed database is a set of data which is the unity logic ， but in fact these data is located on different sites it is of high availability ， easy expansibility ， high concurrency ， high efficiency and etc in distributed system ， data redundancy is a method to improve the speed of query and the availability of system distributed query should shield the lower level details of data redundancy from end users ， distributed transaction should ensure data from disaccord this paper introduces basic conceptions of distributed database firstly ， discusses distributed transaction and concurrent control ， describes the development prototype mysql ’ s characters ， architecture and executive mechanism ， then shows the skeleton model of dpsql and exposes the strategy and algorithm of distributed query and distributed transaction ， at last analyzes the extra expenses and response delay of distributed processes this paper exposes the implementation mechanism of distributed query and distributed transaction emphatically distributed query uses the strategy of “ read one ， write a11 ” s0 in such a system if user ’ s requests are read - - only for the most part and the distribution of data redundancy is plausible ， efficiency is very high distributed transaction uses two - 。 phase commit protocol to ensure the consistency of global data ， which has less communication overhead

    分散式查詢需要向用戶屏蔽數據冗餘分散的底層細節，分散式事務處理要保證全局數據完整，這都是傳統集中式數據庫不曾面臨的問題。本文首先介紹了分散式數據庫的概念性問題；接著討論了分散式事務涉及的定義及演算法；然後描述了dpsql的原型mysql的特性、結構和執行機制；繼而給出了dpsql的梗概模型，闡述了實現分散式查詢和分散式事務處理的策略及演算法；最後分析了進行分散式處理給系統增加的額外開銷和客戶端的額外響應延遲。本文重點描述了分散式查詢和分散式事務處理的實現機制，分散式查詢採用」讀一個寫全部」的本地優先策略，在讀操作頻繁的系統中，只要庫的分佈合理，單機效率極高，幾乎無任何附加開銷和延遲，而以整個系統的角度看來，吞吐量就更是優于單機系統；分散式事務處理採用兩階段提交協議，通信次數較少並能確實保證副本一致。
  16. Lock mechanism of that concurrency control can effectively void the dead - lock, two phase commit can guarantee atomicity of the distribute transaction while distributed transaction is executed with which the consistency of the database system is guaranteed. the method of checking the inconsistent is mainly to track the update status of multiple repetitions when distributed and parallel database system is not busy, and to detect inconsistent early. consequently, system can be recovered to best status

    數據庫在執行分散式事務的時候，並發控制的鎖機制可有效的預防分散式事務中的死鎖現象，兩階段的提交協議可以保證分散式事務執行的原子性，從而有效地保證了分散式并行數據庫系統的一致性，不一致性檢測的方法主要是在保證系統非繁忙狀態下對多個副本間的數據庫的更新狀態進行跟蹤，也保證了數據庫多個副本間不一致狀態的及早發現，從而使系統及時地恢復到最佳運行狀態，提高了分散式并行數據庫系統的可用性。
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