Video: Qhov twg zoo dua multiprocessing lossis multithreading hauv Python?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Cov xov module siv threads, lub multiprocessing module siv cov txheej txheem. Qhov txawv yog tias threads khiav hauv tib qhov chaw nco, thaum cov txheej txheem muaj cov cim xeeb cais. Qhov no ua rau nws nyuaj me ntsis los qhia cov khoom ntawm cov txheej txheem nrog multiprocessing . Cov txheej txheem spawning yog qeeb me ntsis dua li spawning threads.
Raws li txoj cai, qhov twg yog qhov zoo dua multiprocessing lossis multithreading?
Qhov sib txawv tseem ceeb ntawm multiprocessing thiab multithreading yog tias multiprocessing tso cai rau lub kaw lus kom muaj ntau tshaj ob CPUs ntxiv rau qhov system whereas multithreading cia tus txheej txheem tsim ntau threads txhawm rau ua kom suav ceev ntawm ib qho system.
Ib tug kuj yuav nug, dab tsi yog qhov zoo ntawm kev siv multithreading es tsis txhob siv ntau cov txheej txheem? Yog li ntawd, multithreaded cov kev pab cuam tuaj yeem khiav nrawm dua li ntawm lub tshuab uniprocessor. Lawv kuj tuaj yeem ua tau sai dua li qhov kev zov me nyuam siv ntau yam txheej txheem , vim threads xav tau kev pab tsawg dua thiab tsim nyiaj siv ua haujlwm tsawg dua.
Tsis tas li ntawd, multithreading zoo hauv Python?
Hauv CPython, vim yog Lub Ntiaj Teb Tus Txhais Lus Xauv, tsuas yog ib qho xov tuaj yeem ua tiav Python code ib zaug (txawm tias qee lub tsev qiv ntawv ua haujlwm tau zoo tuaj yeem kov yeej qhov kev txwv no). Txawm li cas los xij, threading tseem yog tus qauv tsim nyog yog tias koj xav khiav ntau yam haujlwm I / O-bound ib txhij.
Multithreading puas zoo?
Multi-threading tsis yog a zoo lub tswv yim yog tias koj xav tau los lav lub sijhawm lub cev (xws li hauv koj qhov piv txwv). Lwm qhov cons suav nrog kev sib pauv cov ntaub ntawv sib txawv ntawm cov xov. kuv yuav hais ntau txoj xov yog zoo rau cov hauj lwm sib npaug tiag tiag yog tias koj tsis quav ntsej ntau txog lawv cov txheeb ze ceev / qhov tseem ceeb / sijhawm.
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