priority inversion 中文意思是什麼
priority inversion
解釋
優先轉置-
The article gives the syntax of the constructors of the scheduler. for the priority inversion happen when high priority thread share with low priority thread a certain resource ^ e. the article puts forward three priority inversion avoidance, priority in _ heritance protocol. priority ceiling emulation protocol, and thread copy protocol
對高優先級線程與低優先級線程進行通信或高優先級線程與廣東工業大學工程碩士學位論文低優先級線程共享某個資源時可能出現的優先級逆轉問題，本論文討論了三個避免優先級逆轉的方法:優先級繼承機制、優先級限高機制、線程復制機制。 -
To deal with the difference on operating system level, this paper designs a thread - level algorithm based upon priority inheritance protocol to prevent priority inversion. a dynamic priority mapping and scheduling algorithm to achieve strict order is also presented. through analysis of multi - threaded execution order under fixed priority scheduling model, a multithreaded programming model with totally predicable execution order is proposed
針對各種操作系統的差異，本文提出了基於優先級繼承協議的線程級防優先級翻轉演算法，提出了能夠嚴格保序的動態優先級映射方法及相關的調度演算法，通過研究固定優先級調度下的多線程執行順序問題，本文還提出了一種執行順序可預測的多線程程序設計模式。 -
Deadline monotonic algorithm is studied from several perspectives including the development history of the theory, the scheduability test algorithm, priority inversion solutions, aperiodic task handling etc. and 2 important conclusions of the theory : static optimal property and the sufficient and necessary feasibility test, are discussed in proof form
從理論發展歷史、可調度性測試方法、優先級倒置的處理、非周期任務的處理等幾個方面對截止時間單調演算法進行了研究。並對演算法的兩個重要結論：靜態最優性和可調度性測試方法分別進行了證明和推導。 -
The most difficult task of the design is to arrange the privilege of all task to ensure the system ' s response to external real - time event timely, to avoid the deadlock, to decrease the priority inversion and to enhance the ability of fault - tolerance
根據需求確定各個任務線程的優先級保證實時時間的及時響應以及如何避免死鎖，減少優先級級倒置和提高系統的容錯性是工作的難點。 -
The paper carefully describes important technology relevant of the new scheme. the thinking and purpose of realizing software interrupt emulation technology is explained in detail, and the concrete tactics of implementing the refined timer in two styles is set forth. the paper discusses two real time schedule arithmetic adopted by real time kernel such as rate monotonic analysis arithmetic and earlier deadline first arithmetic, and the resolvent of preventing priority inversion is made out
文章對新實現方案的重要相關技術做了細致的論述，其中，詳細說明了軟體中斷模擬技術的實現思路和目的；對兩種模式下（ periodic 、 oneshot ）細粒度定時器的具體實現策略做了闡述；對實時內核所採用的兩種實時調度演算法：速率單調性分析演算法和最早期限優先演算法進行了描述，並提出了防止優先級反轉的解決方法。 -
Priority inversion arises when a higher - priority task is forced to wait an indefinite period of time for a lower - priority task to complete
優先級反轉是指一個任務等待比它優先級低的任務釋放資源而被阻塞，如果這時有中等優先級的就緒任務，阻塞會進一步惡化。優先級繼承技術可用來解決優先級反轉問題。 -
Particularly, it aims at the requirements to the priority and the schedule of the real - time system, exploits the real - time ability of thread library, and implements a fixed - priority based scheduling algorithm and a mutex with priority inheritance protocol which can avoid priority inversion and give much more predictability or determinism to real - time system
特別地，針對實時系統對線程優先級和調度的基本需求，開發了線程庫的實時特性，實現了基於固定優先級的調度演算法和支持優先級繼承協議的鎖機制，從而避免了優先級反轉給實時系統帶來的不可預測性。
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