嵌入式實(shí)時(shí)進(jìn)程管理及其對(duì)實(shí)時(shí)數(shù)據(jù)庫(kù)的支持.pdf

1、華中科技大學(xué)碩士學(xué)位論文嵌入式實(shí)時(shí)進(jìn)程管理及其對(duì)實(shí)時(shí)數(shù)據(jù)庫(kù)的支持姓名：何冰申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：計(jì)算機(jī)軟件與理論指導(dǎo)教師：劉云生20040510華中科技大學(xué)碩士學(xué)位論文——————————————==————=————————=一：AbstractARTsOSisallembeddedrealtimeoperatingsystemdevelopedbyHuaxiangSoftwareResearchandDevelopmentCent

2、re，andprocessmanagementmoduleisthekeymoduleinit，whichdecideswhetherembeddedrealtimedatabaseARTs—EDBiSembedded，real—timeanddataintegral，ornotThereal—timeprocessmoduleincludestwoparts，oneisdynamicallyextensibleintegratedmi

3、cro—kernel，andanotherismulti—processandmulti—threadoutofkernelTheformerwhichincludesonlythebasicfunctionsofthekernelandcanbeextendedstaticallyordynamicallyhasnokernelthread，SOitissmall，integrated，extensibleandhighconcurr

4、entThelatterwhichconsidersboththefunctionefficiencyofthemulti—threadandtheprotectionofthemulti—process，supportsthenestedtransactionmodelinARTsEDBperfectlyTheprioritydrivenpreemptableschedulingmoduleinARTs—OS，whichisrespo

5、nsibleforchoosingthethreadwithhighestprioritytogetCPU，isthefoundationoftransactionschedulinginARTs—EDBItislowsystemspending，predictable，andhighefficientInaddition，tosupportthecommittingruleandtheabortionruleofARTs—EDB，AR

6、Ts—OSintroducestheconceptofthecommittingexitandabortionexitofthethread，whichiStheoriginalcreationinARTs—OSTheoptionaltaskacceptingcontrolmoduleinARTsOShastwofunctions，oneistaskpriorityallocation，anotheristasksetschedulab

7、ilityanalysisThetaskpriorityallocationadoptsDeffededRateMonotonic(DRM)pfiofityallocationalgorithmforhybridreal—timetasks，whichhasimprovedtheshedulabilityofthetasksetsubmittedtoARlb—OSThetestoftheperformanceoftheprocessma

8、nagementmoduleshowsthatthetimeDrecisionofARTs—OSisonmicrosecondlevel，whichhasmetthesystemrequirementsKeywords：embeddedrealtimeoperatingsystem，embeddedrealtimedatabase，realtimeprocessmodel，realtimethreadscheduling，taskacc