deadline scheduling 中文意思是什麼
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Although a deadline date behaves like a flexible constraint and has little impact on scheduling, this feature is useful whenever you want to set both a constraint and a deadline for a task.
雖然期限的作用像彈性限制而且對日程排定沒什麼影響，但當您既想設置任務限制又想設置任務期限時，此項功能就很有用。 -
In this dissertation the ts demultiplex task and ac - 3 decoding task in mpeg - 2 protocol are scheduled by 2 policies. one is the buffer - drive policy and the other is deadline - drive policy. some experiments have been done to confirm the policy and the arguments of the scheduling
本文根據hdtv信源集成解碼晶元的工作原理，對mpeg - 2協議中的ts流解復用任務和ac - 3音頻解碼任務提出緩存驅動和時限驅動兩種調度策略。 -
In the integrated scheduling service, hard periodic tasks are scheduled off - line to meet their real - time requirements, and each soft aperiodic task request is assigned a suitable deadline to enhance the aperiodic responsiveness. scheduling guarantees of hard periodic tasks are preserved through the on - line schedulability analysis. the sharing of critical section resources between the tasks is also considered in the integrated scheduling service ' s schedulability analysis, and bounded blocking for accessing the critical section resource is achieved by introducing the priority ceiling protocol
在該模型中，對硬實時周期性任務集進行離線調度以滿足其可調度性保證：給動態到達的軟實時非周期性任務分配一個截止期，提高其響應性能，同時通過在線可調度性分析保證周期性任務的可調度性不受影響；集成調度服務模型在可調度性分析中還考慮了任務之間共享臨界區資源的情況，採用優先級上限協議對訪問臨界區引起的阻塞進行了定界分析。 -
When the system load over 0. 69, there are deadline dropping in the rma scheduling
實驗表明，系統負載大於0 . 69時， rma調度中開始有死線丟失。 -
Your project plan helps you identify and correct problems such as overloaded resources, tasks that threaten to bust your budget, and scheduling conflicts that could push out the project deadline
項目計劃將有助於確定並糾正這些問題，譬如：過度分配的資源、導致超支的任務，以及可能會導致項目延期的日程排定沖突。 -
At the same time, deadline field is introduced into periodic data frames to differentiate their emergency degree, and non - preemptive edf scheduling method is applied to improve the end - to - end delay of periodic data field
同時還在周期性數據幀中引入截止期限欄位來區分其不同的緊急程度，並對其採用非中斷的edf調度方法來改善周期性數據幀的端到端延遲。 -
The main topics of the thesis are listed below : the current research status of real - time scheduling theories is discussed. popular scheduling algorithms, including static scheduling algorithms such as rate monotonic analysis ( rma ), deadline monotonic analysis ( dma ), and dynamic algorithms such as earliest deadline first algorithm ( edf ), least leisure first algorithm ( llf ) etc., and their strong points and weakness are discussed
本文的主要內容如下：介紹了實時調度理論的發展現狀，分析了當前流行的各種調度演算法的優缺點，其中包括靜態調度演算法，比如速率單調調度（ rms ） 、截至時間單調調度（ dms ） ；和動態調度演算法，比如最早截止時間優先調度（ edf ） 、最小空閑時間優先調度（ llf ）等。 -
Discriminating scheduling policies are applied to the 2 subsets. real - time tasks are also categorized 2 - dimentionally by arrival pattern ( periodic tasks vs. aperiodic tasks ) and deadline type ( hard real - time tasks, firm deadline tasks, etc. ), and the policies to implement deadline monotonic algorithm on these types of tasks are discussed
並且將實時任務按照到達模式（周期性任務，非周期任務等）和截止時間類型（硬截止時間單調技術研究與實時調度模型的實現實時任務，固定截至時間任務等）兩個維度進行了分類，討論了如何利用截至時間單調演算法處理不同類型的實時任務。 -
We test scheduling policy in the 3. 3, the result show that the scheduling policy in 3. 3 ensures that the task of hard real - time does not drop deadline, guarantees the qos demand of soft real - time tasks and does not starve common tasks
對3 . 3節中的調度策略進行測試，實驗表明：硬實時任務得到了優先執行，普通任務能獲得一定的cpu時間，不會饑餓，並保證了軟實時任務的qos要求。 -
In this thesis deadline monotonic technique is detailedly discussed and researched, and a real - time scheduling model based on this technique ( hereafter refer to as real - time task scheduler ), which can be used as a reference model of real systems, is developed and discussed
本文詳細討論和研究了截止時間單調技術，並提出和實現了一個以之為基礎的實時調度模型（文中稱為實時任務調度器） ，為真實系統的設計提供了一個參考調度模型。 -
The thesis is organized as follows : chapter 1 is an introduction to the research background ; chapter 2 is the theoretical part which includes a summary of real - time scheduling algorithms and the researches of deadline monotonic theory ; chapter 3 proposes the design considerations and objectives of the real - time task scheduler, and introduces the experiment platform qnx real - time operating system ; the design and implementation of the scheduler are discussed in detail in chapter 4 ; chapter 5 summarizes the thesis and discusses applying the scheduler on real systems and its future improvements
本文組織如下:第一章為研究背景介紹;第二章為實時調度綜述和對截止時間調度理論的研究;第三章介紹了實時調度器的設計考慮和設計目標以及試驗平臺qnx實時操作系統:第四章詳細闡述了實時任務調度器設計和實現細節和關鍵演算法:第五章為全文總結和對實時任務調度器在真實系統中的應用和進一步改進的討論。
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