Ukupakisha yindlela yokubhala idatha ukuya, kunye nokufunda kuyo, ukugcinwa kwesibini ukuze kusetyenziswe kwindawo yokugcina ephambili, eyaziwa ngokuba yimemori ephambili.
Kwinkqubo yokulawula imemori ethatha inzuzo ye-paging, i-OS ifunda idatha kwisitoreji sesibini kwiibhloko ezibizwa ngokuba ngamaphepha, onke anobukhulu obufanayo.
Yintoni i-paging kwaye isebenza njani?
Ipheyiji isetyenziselwa ukufikelela ngokukhawuleza kwidatha. Xa inkqubo idinga iphepha, iyafumaneka kwimemori engundoqo njengoko i-OS ikhuphela inani elithile lamaphepha ukusuka kwisixhobo sakho sogcino ukuya kwimemori engundoqo. I-Paging ivumela indawo yedilesi yendawo yenkqubo ukuba ingabikho.
Yintoni i-paging kwi-OS?
Ubuchule bokupheyisha budlala indima ebalulekileyo ekuphumezeni imemori ebonakalayo. I-Paging yindlela yokulawula imemori apho indawo yedilesi yenkqubo iqhekezwa kwiibhloko ezinobungakanani obufanayo obubizwa ngokuba ngamaphepha (ubukhulu bunamandla e-2, phakathi kwe-512 bytes kunye ne-8192 bytes). Ubungakanani benkqubo bulinganiswa kwinani lamaphepha.
Yintoni ukupakisha ngomzekelo?
UkuPhepha ngoMzekelo. KwiiNkqubo zokuSebenza, iPaging yindlela yokugcina esetyenziselwa ukubuyisela iinkqubo ukusuka kwisitoreji sesibini kwimemori eyintloko ngendlela yamaphepha. Uthathela ingqalelo into yokuba amaphepha enziwe imephu kwizakhelo kwiPaging, ubungakanani bephepha kufuneka bulingane nobungakanani besakhelo.
Yintoni inkqubo yokupheyitha kwinkqubo yokusebenza?
Inkqubo yokwenza. Ukupheyinta. I-Paging yinkqubo yokulawula imemori ephelisa imfuno yokwabiwa okudibeneyo kwememori yomzimba. Esi sikimu sivumela indawo yedilesi yendawo yenkqubo ukuba ingahambelani.
Yintoni i-paging kunye neentlobo zayo?
Ukupakisha yindlela yokubhala idatha ukuya, kunye nokufunda kuyo, ukugcinwa kwesibini ukuze kusetyenziswe kwindawo yokugcina ephambili, eyaziwa ngokuba yimemori ephambili. Kwinkqubo yokulawula imemori ethatha inzuzo ye-paging, i-OS ifunda idatha kwisitoreji sesibini kwiibhloko ezibizwa ngokuba ngamaphepha, onke anobukhulu obufanayo.
Ziziphi iindlela zokupheja?
Imemory paging yindlela yokulawula inkumbulo yokulawula indlela ikhompyutha okanye izixhobo zememori zoomatshini (VM) ezabelwana ngazo. Ikhompyuter inokulungisa inkumbulo ngaphaya kwemali efakwe ngokwasemzimbeni kwisistim. Inxalenye yehard diski esebenza njengememori ebonakalayo ibizwa ngokuba yifayile yephepha.
Kutheni i-pageging ikhawuleza kunokwahlulahlula?
UkuPhepha kwahlula isithuba sedilesi kwiiyunithi ezilinganayo ezibizwa ngokuba ngamaphepha. Njengomcimbi osebenzayo ukuphequlula kulula ukuphumeza kunokwahlulahlula. Ukusebenzisa iPaging. Yahlula imemori ebonakalayo ibe yiyunithi yememori elinganayo ebizwa ngokuba ngezakhelo.
Yintoni injongo yokupheyija iitafile zephepha kwi-OS?
Itheyibhile yephepha lulwakhiwo lwedatha olusetyenziswa yinkqubo yenkumbulo yenyani kwinkqubo yokusebenza yekhompyuter ukugcina imephu phakathi kweedilesi zenyani kunye needilesi zendawo.
Ziziphi iinkqubo zokupheyija?
inkqubo yokupheyitha – iNgcaciso yeKhompyutha. Intetho kawonke-wonke, okanye isandisi-lizwi, esisetyenziselwa ukwenza izibhengezo nokwazisa okanye ukubiza abantu. Kwizakhiwo ezikhulu, iinkqubo zepheyiji zidla ngokuhlulwa zibe ziindawo ezininzi, okanye iindawo zokugubungela.
Yintoni i-paging kunye nokutshintshisa?
Ukutshintshanisa kubhekisa ekukhupheni isithuba sedilesi yenkqubo yonke, okanye nangaliphi na inqanaba, icandelo ledatha yokubhaliweyo okungabalekiyo, ngaphandle kwisixhobo sotshintshiselwano, okanye ngasemva, kwindlela enye (ngokuqhelekileyo idisk). Ngelixa i-pageging ibhekisa ekukopeni ngaphakathi/ngaphandle kwephepha elinye okanye ngaphezulu kwisithuba sedilesi.
Yintoni i-paging kunye nokwahlulahlula?
Umahluko osisiseko phakathi kwepheyiji kunye nokwahlulahlula kukuba iphepha lihlala linobungakanani bebhloko esisigxina ngelixa, icandelo linobungakanani obuguquguqukayo. Kwipheyiji, itheyibhile yephepha imephu idilesi yengqiqo kwidilesi yendawo, kwaye iqulethe idilesi yesiseko yephepha ngalinye eligcinwe kwizakhelo zendawo yememori yendawo.
Yintoni ukupheyija ngomzobo?
Ukupheyinta. Kwiinkqubo zokusebenza zekhompyuter, i-pageging yinkqubo yokulawula imemori apho ikhomputha igcina kwaye ikhuphe idatha kwindawo yokugcina yesibini ukuze isetyenziswe kwimemori ephambili. Kwesi sikimu, inkqubo yokusebenza ifumana kwakhona idatha kugcino lwesibini kwiibhloko ezinobungakanani obufanayo ezibizwa ngokuba ngamaphepha.
Ibalwa njani idilesi yendawo yokupheyitha?
Ukubala idilesi yendawo:
- khangela inani lephepha kwitafile yephepha kwaye ufumane inombolo yesakhelo.
- ukwenza idilesi yendawo, isakhelo = 17 bits; offset = 12 bits; emva koko 512 = 29. 1m = 220 => 0 - ( 229-1) ukuba imemori eyintloko yi-512 k, ngoko idilesi yendawo yi-29 bits.
Kutheni le nto ipheyiji yenziwe?
Kutheni kusetyenziswa i-paging? I-Paging sisisombululo kwingxaki yokuqhekeka kwangaphandle oko kukuvumela ukuba indawo yedilesi enengqiqo yenkqubo ukuba ingabikho, ngaloo ndlela ivumela inkqubo yokwabiwa kwememori yomzimba naphi na apho ikhoyo ikhoyo.
Kuthethwa ukuthini ngokufunwa kwepheyiji kwinkqubo yokusebenza?
Kwiinkqubo zokusebenza zekhompyutheni, i-paging yokufuna (ngokuchaseneyo ne-paging yokulindela) yindlela yokulawula imemori ebonakalayo. Oku kulandela ukuba inkqubo iqala ukuphunyezwa kungekho nalinye lamaphepha ayo kwinkumbulo yomzimba, kwaye iimpazamo ezininzi zamaphepha ziyakwenzeka de uninzi lweseti yokusebenza yamaphepha abekwe kwinkumbulo yomzimba.
Yintoni i-paging kunxibelelwano?
Iinkqubo zokuPhega. IiNkqubo zePaging yinkqubo yonxibelelwano engenazingcingo eyenzelwe ngokukodwa unxibelelwano lwendlela enye. Esi sixhobo sisebenziseka lula sinceda ekuthumeleni imiyalezo ekhawulezayo kwaye sithomalalise amaxhala akho onxibelelwano apho iminxeba yelizwi isenokunganqweneleki (okanye inokwenzeka).
Yintoni i-paging kwi-80386?
Iyunithi yokuPaging: Iyunithi yokupheja ye-80386 isebenzisa indlela yetafile enemigangatho emibini ukuguqula idilesi yomgca enikezelwe yiyunithi yokwahlula kwiidilesi zendawo. IRejista yeSiseko sePaging Descriptor: Irejista yolawulo i-CR2 isetyenziselwa ukugcina idilesi ye-32-bit ye-linear apho impazamo yephepha langaphambili ifunyenwe khona.
Yintoni i-paging kunxibelelwano olungenazingcingo?
UkuPhepha (IiNethiwekhi ezingenazintambo) kwi-belajar, i-paging, i-telecom. I-Paging yindlela yokuhambisa umyalezo, ngenkqubo yonxibelelwano kawonke-wonke okanye yabucala okanye isignali yerediyo, kumntu ongaziwa ukuba uphi kanye kanye.
Yintoni ukupheyitha kwi-SQL Server?
Iseva ye-Microsoft SQL iyahlula phakathi kwepheyiji kunye nokwenziwa kwamaphepha. Ukupakisha kubhekisa kuphatho lweebhotile zenkumbulo ngelixa i-pagination, ugqaliselo lweli nqaku, ibhekisa ekwahluleni umbuzo we-T-SQL wesiphumo sombuzo ube ngamacandelo athile.
Yintoni iphepha kwimemori ebonakalayo?
Iphepha, iphepha lememori, okanye iphepha lenyani yibhloko yobude obuzinzileyo edibanayo yenkumbulo yenyani, echazwa ngungeniso olunye kwitheyibhile yephepha. Ngokufanayo, isakhelo sephepha sesona sixhobo sincinci sobude obuzinzileyo bebhloko yenkumbulo yomzimba apho amaphepha enkumbulo enziwa imephu yinkqubo yokusebenza.
Yintoni impazamo yephepha kwi-OS?
Ukuphazamiseka okwenzeka xa inkqubo icela idatha engekhoyo ngoku kwinkumbulo yokwenyani. Ukuphazamiseka kubangela ukuba inkqubo yokusebenza ikhuphe idatha kwimemori ebonakalayo kwaye ilayishe kwi-RAM. Impazamo yephepha engasebenziyo okanye impazamo yephepha yenzeka xa isixokelelwano esisebenzayo singakwazi ukufumana idata kwimemori yenyani.
Kuthetha ukuthini ukupeyinta umntu?
ebiza igama lomntu (ingakumbi ngenkqubo yesandisi-lizwi) “inkqubo yeentetho zoluntu esibhedlele yayisetyenziselwa ukupheja” Uhlobo: lokuthetha, ukuphimisela. ukusetyenziswa kwezandi ezikhutshiweyo kunxibelelwano lokuva. 2.
Yintoni inombolo yepheyiji?
I-pager sisixhobo esincinci sonxibelelwano esifumana (kwaye, kwezinye iimeko, sithumela) iimpawu zesilumkiso kunye/okanye imiyalezo emifutshane. (Kungenxa yoko le nto isixhobo sikwabizwa ngokuba yi-beeper). Ezona pager zilula ngendlela enye zibonisa inombolo yefowuni yokubuyela kumntu othumele umyalezo.
Yintoni isandisi sephepha?
IiAmplifaya zeNkqubo yokuPhega. Ii-amplifiers ze-Paging system zisetyenziselwa ukudibanisa inkqubo yefowuni yakho kwizithethi zepheyiji ezingaphezulu kunye neempondo.
Ifoto kwinqaku nge "Wikimedia Commons" https://commons.wikimedia.org/wiki/File:MMU_principle_updated.png