Kusikwa kwemaitiro kunowanikwa mumatanho maviri muUNIX system: forogo uye exec. Yese maitiro anogadzirwa uchishandisa iyo forogo system kufona. … Zvinoitwa neforogo kugadzira kopi yemaitiro ekufona. Nzira ichangobva kugadzirwa inonzi mwana, uye akafona ndiye mubereki.
Maitiro anogadzirwa sei muLinux?
Maitiro matsva anogona kugadzirwa nefork () system call. Maitiro matsva ane kopi yekero nzvimbo yemaitiro ekutanga. fork () inogadzira maitiro matsva kubva pane iripo maitiro. Maitiro aripo anonzi maitiro evabereki uye maitiro anogadzirwa achangobva kunzi maitiro emwana.
Maitiro anogadzirwa sei?
Kusikwa kwemaitiro kunowanikwa kuburikidza neforogo () system call. Iyo ichangobva kugadzirwa nzira inonzi muitiro wemwana uye maitiro akaatanga (kana maitiro apo kuurayiwa kwatangwa) kunonzi maitiro emubereki. Mushure meforogo () system call, ikozvino tine maitiro maviri - maitiro emubereki nemwana.
Chii chinonzi process muUnix?
A process chirongwa chirikuitwa mundangariro kana nemamwe mazwi, chiitiko chechirongwa mundangariro. Chero purogiramu yakaitwa inogadzira maitiro. Chirongwa chinogona kuve murairo, shell script, kana chero bhinari inogadziriswa kana chero application.
Ndeupi murairo unoshandiswa kugadzira maitiro?
MuUNIX nePOSIX unodaidza fork() wobva waita () kugadzira maitiro. Paunoiforoma inobata kopi yemaitiro ako azvino, kusanganisira ese data, kodhi, nharaunda zvinosiyana, uye mafaera akavhurika.
Linux kernel inzira here?
Kubva pane iyo maitiro manejimendi ekuona, iyo Linux kernel ndeye preemptive multitasking inoshanda sisitimu. Seyo multitasking OS, inobvumira maitiro akawanda kugovera processors (CPUs) uye zvimwe zviwanikwa zvehurongwa.
Ini ndinonyora sei maitiro ese muLinux?
Ngatitarisei zvakare pamirairo mitatu yaunogona kushandisa kunyora maitiro eLinux:
- ps command - inoburitsa static maonero eese maitiro.
- top command - inoratidza chaiyo-nguva runyorwa rwese maitiro ekumhanya.
- htop command - inoratidza chaiyo-nguva mhedzisiro uye ine mushandisi-ane hushamwari maficha.
17 Oct. 2019 g.
Chii chinoitika kana forogo ichinzi ka3?
Kana mubereki nemwana vakaramba vachiita kodhi imwechete (kureva kuti havatarise kukosha kwefork() , kana yavo ID yemaitiro, uye bazi kune nzira dzakasiyana dzekodhi zvichienderana nayo), saka imwe neimwe inotevera forogo inopeta nhamba. yemaitiro. Saka, hongu, mushure memaforogo matatu, iwe unozopedzisira uine 2³ = 8 maitiro muhuwandu.
Ndezvipi zvikonzero zvekugadzirwa kwemaitiro?
Pane zviitiko zvina zvakakosha zvinoita kuti nzira igadzirwe:
- System kutanga.
- Kuita kwemaitiro ekugadzira system kufona nekumhanya maitiro.
- Chikumbiro chemushandisi kugadzira maitiro matsva.
- Kutanga kwebasa rebatch.
Ndeapi matanho matatu ekugadzira nzira?
Iyo shanduko manejimendi maitiro pachayo ine zvikamu zvitatu: gadziriro, kuronga uye kuuraya chikamu.
Chii chinonzi ID process muUnix?
MuLinux neUnix-senge masisitimu, maitiro ega ega anopihwa ID process, kana PID. Iyi ndiyo nzira iyo sisitimu yekushandisa inozivisa uye inoteedzera maitiro. Izvi zvinongo bvunza maitiro ID uye woidzosera. Maitiro ekutanga akaburitswa pabhutsu, anonzi init, anopiwa iyo PID ye "1".
Chii chinonzi maitiro uye mhando dzemaitiro muLinux?
Kune marudzi maviri eLinux process, yakajairika uye chaiyo nguva. Nguva chaiyo maitiro ane yepamusoro pekutanga kupfuura ese mamwe maitiro. Kana paine chaiyo nguva maitiro akagadzirira kumhanya, inogara ichimhanya kutanga. Real time process inogona kunge iine marudzi maviri epolicy, round robin uye yekutanga in first out.
Ndinouraya sei nzira mu putty?
Zviri nyore kwazvo kuuraya maitiro uchishandisa iyo yepamusoro command. Kutanga, tsvaga maitiro aunoda kuuraya uye ona iyo PID. Wobva wadzvanya k uku kumusoro kuri kushanda (iyi nyaya inonzwisisika). Ichaita kuti iwe uise iyo PID yemaitiro aunoda kuuraya.
Chii chinoshandiswa JOIN command?
Murairo wejoinha unotipa kukwanisa kubatanidza mafaira maviri pamwe chete uchishandisa munda wakafanana mune imwe neimwe faira sekubatanidza pakati pemitsara ine hukama mumafaira. Tinogona kufunga nezve Linux yejoinha yekuraira nenzira imwechete yatinofunga nezve SQL inojoinha kana isu tichida kujoinha maviri kana anopfuura matafura mudura rehukama.
Maitiro anoshanda sei?
A process inongova chirongwa mukuita. Kuitwa kwemaitiro kunofanirwa kufambira mberi nenzira inoteedzana. Kuti tizviise mumashoko akareruka, tinonyora mapurogiramu edu emakombiyuta mune zvinyorwa zvinyorwa, uye patinenge tichiita purogiramu iyi, inova nzira inoita mabasa ose anotaurwa muchirongwa.
Ndinoita sei hurongwa kumashure?
Mhanya Unix maitiro kumashure
- Kuti umhanye chirongwa chekuverenga, chinozoratidza nhamba yekuzivikanwa yebasa, pinda: kuverenga &
- Kuti utarise mamiriro ebasa rako, pinda: mabasa.
- Kuunza maitiro ekumashure kumberi, pinda: fg.
- Kana uine mabasa anopfuura rimwe akamiswa kumashure, isa: fg %#
Jun 18 2019