priority n. 1.(時間、順序上的)先,前。 2.較重要;上席;上位;重點,優(yōu)先(權);先取權。 3.優(yōu)先配給;優(yōu)先考慮的事。 establish an order of priority 確定討論項目的次序。 give priority to 把優(yōu)先權讓給…。 priority of one's claim to another's 某人的要求比另一人的更重要。 according to priority 依照次序,依次。 take priority of 比…居先;得…的優(yōu)先權。
This paper first generally discussed the theory and the design problem of real time system ; then applied the theory to analyze the rt - linux in details ; at last applied priority inheritance protocol to solve the priority reverse problem in rt - linux 本文首先對實時系統(tǒng)理論及設計問題進行了全面的闡述,并運用這些理論對rt - linux進行了詳細的理論分析,最后運用優(yōu)先級繼承協(xié)議解決了rt - linux的優(yōu)先級逆轉問題。
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(tǒng)對線程優(yōu)先級和調度的基本需求,開發(fā)了線程庫的實時特性,實現(xiàn)了基于固定優(yōu)先級的調度算法和支持優(yōu)先級繼承協(xié)議的鎖機制,從而避免了優(yōu)先級反轉給實時系統(tǒng)帶來的不可預測性。
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(tǒng)的差異,本文提出了基于優(yōu)先級繼承協(xié)議的線程級防優(yōu)先級翻轉算法,提出了能夠嚴格保序的動態(tài)優(yōu)先級映射方法及相關的調度算法,通過研究固定優(yōu)先級調度下的多線程執(zhí)行順序問題,本文還提出了一種執(zhí)行順序可預測的多線程程序設計模式。
百科解釋
In real-time computing, priority inheritance is a method for eliminating priority inversion problems. Using this programming method, a process scheduling algorithm will increase the priority of a process to the maximum priority of any process waiting for any resource on which the process has a resource lock.