Kiran tsarin da ke ƙasa don ƙirƙirar zaren shine clone (2) (ƙayyadaddun Linux ne).
Yaya ake ƙirƙirar zaren ta hanyar kiran tsarin?
Ana ƙirƙira zaren ta amfani da tsarin tsarin clone() wanda zai iya yin sabon tsari wanda ke raba sararin ƙwaƙwalwar ajiya da wasu tsarin sarrafa kwaya tare da iyayensa. Ana kiran waɗannan matakai LWPs (tsarin nauyi mai sauƙi) kuma ana kuma san su da zaren matakin kernel.
Yaya ake ƙirƙirar zaren a cikin Linux?
Yana amfani da aikin pthread_create() don ƙirƙirar zaren guda biyu. Ayyukan farawa na zaren biyu ana kiyaye su iri ɗaya. A cikin aikin 'doSomeThing()', zaren yana amfani da ayyukan pthread_self() da pthread_equal() don tantance ko zaren aiwatarwa shine na farko ko na biyu kamar yadda aka ƙirƙira.
Wanne tsarin kira ake amfani da shi a cikin Linux don ƙirƙirar tsari?
cokali mai yatsu kira tsarin ne wanda ke haifar da sabon tsari ta kwafin hoton tsarin iyaye. Bayan haka idan tsarin yaro yana so ya zama wani shirin, yana kiran wasu kira na tsarin iyali na exec, kamar execl . Idan alal misali kuna son kunna ls a cikin harsashi, harsashi mai yatsu sabon tsarin yara wanda sannan ya kira execl("/bin/ls").
Wane kira tsarin za a yi amfani da shi don ƙirƙirar zaren Posix?
Ayyukan zaren a cikin C/C++
A cikin tsarin aiki na Unix/Linux, harsunan C/C++ suna samar da madaidaicin zaren POSIX(pthread) API(Interface Program Interface) don duk ayyukan da suka danganci zaren. Yana ba mu damar ƙirƙirar zaren da yawa don kwararar tsari na lokaci ɗaya.
Menene nau'ikan zaren?
Nau'o'in Zare Shida Mafi Yawanci
- UN / UNF.
- NPT / NPTF.
- BSPP (BSP, layi daya)
- BSPT (BSP, Tapered)
- daidaitattun awo.
- awo tapered.
Menene zaren da nau'insa?
Zare rafi ne guda ɗaya a cikin tsari. Zaren suna da kaddarorin iri ɗaya kamar na tsari don haka ana kiran su azaman matakan nauyi mai sauƙi. Ana aiwatar da zaren ɗaya bayan ɗaya amma yana ba da ruɗi kamar ana aiwatarwa a layi daya.
Linux yana da zaren?
Linux yana da na musamman aiwatar da zaren. Zuwa kernel Linux, babu ra'ayi na zaren. … Kernel na Linux baya samar da kowane tsarin nazari na musamman ko tsarin bayanai don wakiltar zaren. Madadin haka, zaren tsari ne kawai wanda ke raba wasu albarkatu tare da wasu matakai.
Zaren nawa ne Linux za ta iya ɗauka?
Kwayar Linux x86_64 tana iya ɗaukar iyakar zaren Processor 4096 a cikin hoton tsarin guda ɗaya. Wannan yana nufin cewa tare da kunna hyper threading, matsakaicin adadin na'urorin sarrafawa shine 2048.
Menene babban zaren Linux?
1 - Game da. Hanya ita ce zaren farko da aka fara (wanda ake kira babban zaren). Ita ce kawai zaren da aka ba da izini don fara sabon zaren.
Menene Trace Call a Linux?
strace kayan aiki ne mai ƙarfi na layin umarni don gyarawa da shirye-shiryen harbi matsala a cikin tsarin aiki kamar Unix kamar Linux. Yana ɗauka da yin rikodin duk kiran tsarin da aka yi ta hanyar tsari da siginonin da tsarin ya karɓa.
Menene kiran tsarin exec ()?
Ana amfani da tsarin tsarin exec don aiwatar da fayil wanda ke cikin aiki mai aiki. Lokacin da ake kiran exec, an maye gurbin fayil ɗin da za a iya aiwatarwa na baya kuma ana aiwatar da sabon fayil. Fiye daidai, muna iya cewa yin amfani da tsarin kiran tsarin exec zai maye gurbin tsohon fayil ko shirin daga tsari tare da sabon fayil ko shirin.
Menene kiran tsarin yayi bayani tare da misali?
Kiran tsarin wata hanya ce da ke ba da haɗin kai tsakanin tsari da tsarin aiki. Hanya ce ta shirye-shirye wacce shirin kwamfuta ke neman sabis daga kernel na OS. … Misalin kiran tsarin.
Shin Pthreads kernel zaren?
pthreads da kansu ba zaren kernel ba ne, amma kuna iya amfani da su don haka saboda suna taswirar 1-1 zuwa zaren kernel waɗanda ake sarrafa ta hanyar haɗin yanar gizo.
Me yasa multiprocessing ya zo kamar yadda multithreading ya riga ya kasance?
Multiprocessing yana keɓance keɓance ƙwaƙwalwar ajiya da albarkatu don kowane tsari ko shiri. Multithreading zaren na wannan tsari suna raba ƙwaƙwalwar ajiya iri ɗaya da albarkatun kamar na tsarin. Multithreading yana guje wa pickling. Multiprocessing ya dogara da tara abubuwa a cikin ƙwaƙwalwar ajiya don aikawa zuwa wasu matakai.
Ta yaya Posix zaren aiki?
Laburaren zaren POSIX API ɗin zaren ma'auni ne na C/C++. Yana ba mutum damar haifar da sabon kwararar tsari na lokaci guda. Ya fi tasiri a kan Multi-processor ko Multi-core tsarin inda za a iya tsara tsarin tafiyar da aiki a kan wani processor don haka samun sauri ta hanyar layi daya ko rarrabawa.