I-Kernel inezintambo eziningi njengoba ikwazi ukuphatha ukuphazamiseka okuhlukahlukene kumaphrosesa ahlukene ngesikhathi esisodwa.
Ingabe i-kernel icubungula imicu?
Imicu ye-Kernel ihlelwe yisistimu yokusebenza (imodi ye-kernel).
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Umehluko phakathi kwenqubo ne-Kernel Thread:
| I-PROCESS | I-KERNEL THREAD |
|---|---|
| Inqubo wuhlelo olusetshenziswayo. | Intambo ye-Kernel intambo ephethwe ezingeni le-kernel. |
| Iphezulu phezulu. | Iphezulu emaphakathi. |
| Akukho ukwabelana phakathi kwezinqubo. | Imicu ye-Kernel yabelana ngesikhala sekheli. |
Mingaki imicu ku-kernel?
Lezi yizo izinhlobo ezintathu kwemicu. I-kernel igcina ulwazi oluhlobene nentambo kanye nenqubo ezinhlotsheni ezimbili zezakhiwo. Inqubo ihlale kwakhiwa ngochungechunge olulodwa, olubizwa ngokuthi intambo yokuqala. Uchungechunge lokuqala luhlinzeka ngokuhambisana nezinqubo zochungechunge olulodwa lwangaphambilini.
Ingabe i-Linux iyakusekela ukufunda okuningi?
Kuzinqubo zesikhala somsebenzisi we-Linux kubonakala kulula kakhulu ukunquma ukuthi yiziphi izinqubo ukufundwa okuningi. Ungasebenzisa i-ps -eLf futhi ubheke inani le-NLWP lenani lezintambo, eliphinde lihambisane 'Nemicu:' inani ku-/proc/$pid/status.
Ungakwazi ukufaka i-Linux kernel kuphela?
Ungakwazi ukufaka i-bootloader ngobuchwepheshe kanye ne-kernel kuphela, kodwa ngokushesha nje lapho amabhuzu e-kernel, izokhononda ngokungakwazi ukuqala "init", khona-ke izohlala lapho futhi awukwazi ukwenza lutho nayo.
Kungani intambo ibizwa ngokuthi I-Light Weight Process?
Ngezinye izikhathi imicu ibizwa ngokuthi izinqubo ezingasindi ngenxa yokuthi banestaki sabo kodwa bangafinyelela idatha eyabiwe. Ngenxa yokuthi izintambo zabelana ngesikhala sekheli esifanayo njengenqubo kanye nezinye izintambo ngaphakathi kwenqubo, izindleko zokusebenza zokuxhumana phakathi kwezintambo ziphansi, okuyinzuzo.
Yiziphi izinzuzo kanye nokubi imicu?
Izinzuzo kanye nokubi imicu
- Ngochungechunge olwengeziwe, ikhodi iba nzima ukuyisusa nokuyigcina.
- Ukudalwa kochungechunge kubeka umthwalo ohlelweni ngokwenkumbulo nezinsiza ze-CPU.
- Kudingeka senze ukuphatha okuhlukile ngaphakathi kwendlela yesisebenzi njengoba noma yikuphi okuhlukile okungasingathwa kungaholela ekuphahlazekeni kohlelo.
Iyini ukusetshenziswa kwemicu ye-kernel?
Ukuze kube lula ukubhalwa kwezinhlelo eziphathwayo, imitapo yolwazi ihlinzeka ngochungechunge lwabasebenzisi. Intambo ye-kernel iyinhlangano ye-kernel, njengezinqubo nezibambi eziphazamisayo; yibhizinisi eliphathwa isihleli sesistimu. Intambo ye-kernel isebenza ngaphakathi kwenqubo, kodwa ingabhekiselwa yinoma yimuphi omunye uchungechunge ohlelweni.
Iyini intambo yeleveli ye-kernel?
Imicu yezinga le-kernel ziphathwa isistimu yokusebenza ngqo futhi ukuphathwa kwentambo kwenziwa yi-kernel. Ulwazi lomongo wenqubo kanye nemicu yenqubo konke kulawulwa yi-kernel. Ngenxa yalokhu, imicu yeleveli ye-kernel ihamba kancane kunemicu yeleveli yomsebenzisi.
Uyini umehluko phakathi kwentambo ye-kernel nentambo yomsebenzisi?
Uchungechunge lomsebenzisi yilolo olukhiphayo ikhodi yendawo yomsebenzisi. Kodwa ingabiza esikhaleni se-kernel nganoma yisiphi isikhathi. Isathathwa njengentambo “Yomsebenzisi”, noma isebenzisa ikhodi ye-kernel emazingeni okuphepha aphakeme. Uchungechunge lwe-Kernel yilolo olusebenzisa ikhodi ye-kernel kuphela futhi aluhlobene nenqubo yesikhala somsebenzisi.
Ingabe i-Unix isekela ukufunda okuningi?
Ukubheka Isakhiwo Sokufunda Okuningi. I-UNIX yosiko isivele iwusekela umqondo wezintambo–inqubo ngayinye iqukethe uchungechunge olulodwa, ngakho ukuhlela ngezinqubo eziningi kuwukwenza izinhlelo ezinezintambo eziningi. … I-Multithreading ihlinzeka ngokuguquguquka ngokuhlukanisa izinsiza zezinga le-kernel nezinga lomsebenzisi.
Iyini i-multi threading Linux?
Multithreading kuyinto uhlobo olukhethekile lwemisebenzi eminingi futhi ukwenza imisebenzi eminingi kuyisici esivumela ikhompuyutha yakho ukuthi isebenzise izinhlelo ezimbili noma ngaphezulu ngesikhathi esisodwa. … I-POSIX Threads, noma i-Pthreads inikeza i-API etholakala ezinhlelweni eziningi ze-POSIX ezifana ne-Unix njenge-FreeBSD, i-NetBSD, i-GNU/Linux, i-Mac OS X ne-Solaris.