Ukupheqa kuyindlela yokubhalela idatha, nokuyifunda kusitoreji sesibili ukuze isetshenziswe endaweni yokugcina okuyisisekelo, eyaziwa nangokuthi inkumbulo eyinhloko.
Kusistimu yokuphatha inkumbulo esebenzisa ithuba lokupheja, i-OS ifunda idatha esuka endaweni yokugcina yesibili emabhuloki abizwa ngokuthi amakhasi, wonke anosayizi ofanayo.
Kuyini i-paging futhi isebenza kanjani?
Ukuphega kusetshenziselwa ukufinyelela ngokushesha kudatha. Uma uhlelo ludinga ikhasi, luyatholakala kumemori eyinhloko njengoba i-OS ikopisha inombolo ethile yamakhasi isuka kudivayisi yakho yokugcina iye kumemori eyinhloko. Ukuphegena kuvumela indawo yekheli lendawo yenqubo ukuthi ingahlangani.
Yini i-pageging ku-OS?
Indlela yokupheqa idlala indima ebalulekile ekusebenziseni inkumbulo ebonakalayo. Ukupheqa kuyindlela yokulawula inkumbulo lapho isikhala sekheli sihlukaniswa sibe amabhulokhi anosayizi ofanayo abizwa ngokuthi amakhasi (usayizi ungamandla angu-2, phakathi kuka-512 bytes kanye namabhayithi angu-8192). Ubukhulu benqubo bulinganiswa ngenani lamakhasi.
Kuyini ukupheqa ngesibonelo?
Ukuphega ngeSibonelo. Kuma-Operating Systems, i-Paging iyindlela yokugcina esetshenziselwa ukubuyisa izinqubo kusuka kusitoreji sesibili kuya kumemori eyinhloko ngendlela yamakhasi. Uma kucatshangelwa iqiniso lokuthi amakhasi afakwe imephu kumafreyimu Ekuphegeni, usayizi wekhasi udinga ukufana nosayizi wozimele.
Iyini i-paging scheme ohlelweni lokusebenza?
Isistimu esebenzayo. Ukuphega. I-Paging uhlelo lokuphatha inkumbulo oluqeda isidingo sokwabiwa okuhlangene kwenkumbulo yomzimba. Lolu hlelo luvumela indawo yekheli lendawo yenqubo ukuthi ingahlangani.
Kuyini ukuphequlula kanye nezinhlobo zakho?
Ukupheqa kuyindlela yokubhalela idatha, nokuyifunda endaweni yokugcina yesibili ukuze isetshenziswe endaweni yokugcina okuyisisekelo, eyaziwa nangokuthi inkumbulo eyinhloko. Kusistimu yokuphatha inkumbulo esebenzisa ithuba lokupheja, i-OS ifunda idatha esuka endaweni yokugcina yesibili kumabhulokhi abizwa ngokuthi amakhasi, wonke anosayizi ofanayo.
Ayini amasu okupheja?
Ukupheqa inkumbulo kuyindlela yokulawula inkumbulo yokulawula ukuthi izinsiza zenkumbulo zekhompuyutha noma zomshini obonakalayo (VM’s) zabiwa kanjani. Ikhompyutha ingabhekana nenkumbulo ngaphezu kwenani elifakwe ngokomzimba kusistimu. Ingxenye ye-hard disk esebenza njengememori ebonakalayo ibizwa ngokuthi ifayela lekhasi.
Kungani ukupheja kushesha kunokuhlukanisa?
Ukuphega kuhlukanisa isikhala sekheli sibe amayunithi anosayizi ofanayo abizwa ngokuthi amakhasi. Njengodaba olusebenzayo ukuphequlula kulula ukukusebenzisa kunokuhlukanisa. Ukusebenzisa Ukupheyisha. Hlukanisa inkumbulo engokwenyama ibe amayunithi enkumbulo anosayizi ofanayo abizwa ngokuthi amafreyimu.
Iyini inhloso yokupheja amathebula ekhasi ku-OS?
Ithebula lekhasi isakhiwo sedatha esisetshenziswa isistimu yememori ebonakalayo kusistimu yokusebenza yekhompyutha ukuze kugcinwe imephu phakathi kwamakheli abonakalayo namakheli wendawo.
Ayini amasistimu wokupheja?
uhlelo lokupheja - Incazelo Yekhompyutha. Inkulumo yomphakathi, noma isikhulisazwi, isistimu esetshenziselwa ukwenza izimemezelo nokwazisa noma ukubiza abantu. Emabhilidini amakhulu, amasistimu okupheja ngokuvamile ahlukaniswa abe yizindawo ezimbalwa, noma izindawo ezihlanganisayo.
Kuyini ukuphequlula nokushintshanisa?
Ukushintshanisa kubhekisela ekukopisheni sonke isikhala sekheli lenqubo, noma nganoma isiphi isilinganiso, ingxenye yedatha yombhalo ongahlukaniseki, iphumele edivayisini yokushintshaniswa, noma ukubuyisela emuva, ngesikhathi esisodwa (imvamisa idiski). Nakuba ukupheqa kubhekise ekukopisheni ngaphakathi/ngaphandle kwekhasi elilodwa noma amaningi esikhala sekheli.
Kuyini ukupheqa nokuhlukanisa?
Umehluko oyisisekelo phakathi kokupheja nokuhlukaniswa ukuthi ikhasi lihlala linosayizi webhulokhi engaguquki kuyilapho, ingxenye inosayizi oguquguqukayo. Ekuphegeni, ithebula lekhasi lenza ikheli elinengqondo ekhelini lendawo, futhi liqukethe ikheli eliyisisekelo lekhasi ngalinye eligcinwe kumafreyimu esikhala senkumbulo.
Kuyini ukupheqa ngomdwebo?
Ukuphega. Ezinhlelweni zokusebenza zekhompuyutha, ukupheja kuwuhlelo lokulawula inkumbulo lapho ikhompuyutha igcina futhi ikhiphe idatha egcinwe endaweni yesibili ukuze isetshenziswe kumemori eyinhloko. Kulolu hlelo, isistimu yokusebenza ibuyisa idatha kwisitoreji sesibili ngamabhulokhi anosayizi ofanayo abizwa ngokuthi amakhasi.
Libalwa kanjani ikheli lendawo lendawo yokuphekga?
Ukuze ubale ikheli lendawo:
- bheka inombolo yekhasi kuthebula lekhasi bese uthola inombolo yozimele.
- ukwakha ikheli lendawo, ifreyimu = 17 bits; offset = 12 bits; bese kuba ngu-512 = 29. 1m = 220 => 0 – ( 229-1 ) uma inkumbulo eyinhloko ingu-512 k, khona-ke ikheli lendawo lingamabhithi angu-29.
Kungani kwenziwa i-page?
Kungani kusetshenziswa amakhasi? I-Paging iyisixazululo senkinga yokuhlukaniswa kwangaphandle okuwukuvumela indawo yekheli elinengqondo lenqubo ukuthi ingahlangani, ngaleyo ndlela ivumele inqubo yokwaba inkumbulo engokwenyama nomaphi lapho itholakala khona.
Kusho ukuthini ngokufunwa kwekhasi kusistimu yokusebenza?
Ezinhlelweni zokusebenza zekhompiyutha, ukufunwa kwekhasi (ngokungafani nokupheqa okulindelekile) kuyindlela yokuphatha inkumbulo ebonakalayo. Lokhu kulandela ukuthi inqubo iqala ukusebenza kungekho nelilodwa lamakhasi ayo enkumbulweni yomzimba, futhi amaphutha amaningi ekhasi azokwenzeka kuze kube yilapho iningi lesethi yokusebenza yamakhasi etholakala kumemori yomzimba.
Kuyini ukuphequlula ekuxhumaneni?
Ama-Paging Systems. Ama-Paging Systems wuhlelo lokuxhumana olungenantambo oluklanyelwe indlela eyodwa yokuxhumana. Le divayisi esebenziseka kalula isiza ekuthumeleni imilayezo esheshayo futhi yenza kube lula ukuxhumana kwakho nokukhathazeka lapho izingcingo zezwi zingase zingafunwa (noma zingenzeka).
Kuyini ukupeyisha ku-80386?
Iyunithi yokupheqa: Iyunithi yokupheja ka-80386 isebenzisa indlela yethebula elezinga ezimbili ukuze iguqule ikheli lomugqa elinikezwe iyunithi yokuhlukanisa libe amakheli wendawo. Irejista Yesisekelo Sesichazamazwi Sekhasi: Irejista yokulawula i-CR2 isetshenziselwa ukugcina ikheli elingumugqa we-32-bit lapho kutholwe khona iphutha lekhasi langaphambilini.
Kuyini ukuphequlula ekuxhumaneni okungenantambo?
Ukupheqa (Amanethiwekhi Angenantambo) e-belajar , paging , telecom. Ukupheqa kuyindlela yokudlulisa umlayezo, ngohlelo lokuxhumana lomphakathi noma oluyimfihlo noma isignali yomsakazo, kumuntu ongaziwa ukuthi ukuphi ngempela.
Kuyini ukupheqa ku-SQL Server?
Iseva ye-Microsoft SQL ihlukanisa phakathi kokupheja nokubhala. Ukupheyisha kubhekisela ekuphathweni kwezingqinamba zenkumbulo kuyilapho ukuhlukanisa, ingqikithi yalesi sihloko, ibhekisela ekuhlukaniseni umphumela wombuzo we-T-SQL obekwe izingxenye ezihlukene.
Liyini ikhasi kumemori ebonakalayo?
Ikhasi, ikhasi lememori, noma ikhasi eliyi-virtual ibhulokhi ehambisanayo yobude obugxilile yememori ebonakalayo, echazwa ngokufakwa okukodwa kuthebula lekhasi. Ngokufanayo, uhlaka lwekhasi luyibhulokhi encane yobude obugxilile obumbene yenkumbulo engokomzimba lapho amakhasi enkumbulo enziwa imephu isistimu yokusebenza.
Yini iphutha lekhasi ku-OS?
Ukuphazamiseka okwenzeka lapho uhlelo lucela idatha engekho kumemori yangempela okwamanje. Ukuphazamiseka kucupha isistimu yokusebenza ukuthi ilande idatha kumemori ebonakalayo bese iyilayisha ku-RAM. Iphutha elingavumelekile lekhasi noma iphutha lekhasi lenzeka lapho isistimu yokusebenza ingakwazi ukuthola idatha kumemori ebonakalayo.
Kusho ukuthini ukupeyisha umuntu?
n ukubiza igama lomuntu (ikakhulukazi ngohlelo lwesipika) “uhlelo lwezinkulumo zomphakathi esibhedlela lwalusetshenziswa ekuphegeni” Uhlobo: lokuphimisa, ukuphimisela. ukusetshenziswa kwemisindo ephinyiselwe ukuxhumana ngokuzwayo. 2.
Ithini inombolo yokupheja?
I-pager iyidivayisi encane yezokuxhumana eyamukela (futhi, kwezinye izimo, idlulise) amasignali ezixwayiso kanye/noma imilayezo emifushane. (Yingakho idivayisi yaziwa nangokuthi i-beeper). Ama-pager alula abonisa inombolo yocingo yomuntu othumele umlayezo.
Yini i-paging amplifier?
Ama-Amplifaya Wesistimu Yokushela. Ama-amplifiers esistimu yokupheja asetshenziselwa ukuxhuma isistimu yefoni yakho kuzipikha zokupheja phezulu nezimpondo.
Isithombe ku-athikili ngu- "Wikimedia Commons" https://commons.wikimedia.org/wiki/File:MMU_principle_updated.png