Video: Cache txhais li cas hauv programming?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Caching txhais tau tias khaws cov ntawv luam ntawm cov ntaub ntawv nquag siv hauv cache nco kom peb nkag tau sai dua. los yog peb tuaj yeem hais qhov no yog ua kom txo tau cov ntaub ntawv nqa latency (lub sij hawm siv tau cov ntaub ntawv). Cache nco yog nkag mus sai dua.
Kuj paub, dab tsi yog caching hauv programming?
Tweet Qhov no. Ib CPU cache yog hardware cache siv los ntawm qhov chaw ua haujlwm nruab nrab (CPU) ntawm lub khoos phis tawj kom txo qis tus nqi nruab nrab kom nkag tau cov ntaub ntawv los ntawm lub cim xeeb loj. A cache yog lub cim xeeb me me, nrawm dua, ze dua rau cov tub ntxhais processor, uas khaws cov ntawv luam ntawm cov ntaub ntawv los ntawm cov chaw nco siv ntau zaus.
Qhov thib ob, kev siv caching yog dab tsi? Cache Memory yog ib tug tshwj xeeb heev high-ceev nco. Nws yog siv los ua kom ceev thiab synchronizing nrog high-ceev CPU. Cache nco yog siv los txo lub sij hawm nruab nrab kom nkag tau cov ntaub ntawv los ntawm Main nco. Cov cache yog lub cim xeeb me me thiab ceev dua uas khaws cov ntawv theej ntawm cov ntaub ntawv los ntawm cov chaw nco siv ntau zaus.
Ib yam li ntawd, koj tuaj yeem nug, koj txhais li cas los ntawm caching?
Caching (hais tias "nyiaj ntsuab") yog txheej txheem ntawm kev khaws cov ntaub ntawv hauv a cache . A cache yog thaj chaw khaws cia ib ntus. Piv txwv li, cov ntaub ntawv koj cia li thov los ntawm saib lub vev xaib yog khaws cia rau hauv koj lub hard disk hauv a cache subdirectory nyob rau hauv cov directory rau koj browser.
Dab tsi yog caching thiab vim li cas nws tseem ceeb?
Caching khaws cov khoom uas nquag nkag mus, cov duab thiab cov ntaub ntawv kom ze rau qhov chaw koj xav tau, ua kom nkag mus rau cov vev xaib uas koj ntaus ntau zaus. Thiab ntxiv rau database server muaj ntau yam caches xws li InnoDB tsis cache , txhawm rau khaws cov ntaub ntawv hauv lub cim xeeb, txo qis kev thov los ntawm disk.
Pom zoo:
Qhov programming txhais li cas?
MEAN yog qhov pub dawb thiab qhib JavaScriptsoftware pawg rau kev tsim cov vev xaib dynamic thiab web applications.js. Vim hais tias tag nrho cov khoom ntawm MEAN pawg txhawb nqa cov txheej txheem uas tau sau rau hauv JavaScript, MEAN daim ntawv thov tuaj yeem sau ua ib hom lus rau ob qho tib si server-sab thiab cov neeg siv khoom-kev ua haujlwm ib puag ncig
Runtime txhais li cas hauv programming?
Runtime yog thaum lub program tab tom ua haujlwm (lossis ua tiav). Ntawd yog, thaum koj pib qhov program khiav hauv lub computer, nws yog runtime rau qhov program. Tau ntau xyoo, cov kws sau ntawv tau tawm tsam 'runtime' raws li ib lo lus, hais tias ib yam dab tsi zoo li 'thaum ib qho kev pab cuam khiav' yuav tsis xav tau lub sijhawm tshwj xeeb
Marshal txhais li cas hauv programming?
Hauv computer science, marshalling lossis marshaling yog cov txheej txheem ntawm kev hloov pauv lub cim xeeb sawv cev ntawm ib qho khoom rau cov ntaub ntawv tsim nyog rau kev khaws cia lossis kev sib kis, thiab nws feem ntau yog siv thaum cov ntaub ntawv yuav tsum tau txav ntawm ntau qhov chaw ntawm lub khoos phis tawj lossis los ntawm ib qho kev pab cuam mus rau lwm
Modular programming pab tau li cas hauv cov lus programming?
Cov txiaj ntsig ntawm kev siv modular programming suav nrog: Tsawg code yuav tsum tau sau. Ib txoj kev tuaj yeem tsim kho rau rov siv dua, tshem tawm qhov yuav tsum tau rov ntaus tus lej ntau zaus. Cov kev pab cuam tuaj yeem tsim tau yooj yim dua vim tias ib pab pawg me cuam tshuam nrog tsuas yog ib feem me me ntawm tag nrho cov cai
Parse txhais li cas hauv programming?
Txhawm rau txheeb xyuas, hauv kev tshawb fawb hauv computer, yog qhov uas ib txoj hlua ntawm cov lus txib - feem ntau yog ib qho kev pab cuam - tau muab cais ua cov txheej txheem yooj yim dua, uas tau txheeb xyuas qhov tseeb syntax thiab tom qab ntawd txuas rau cov cim npe uas txhais tau hais tias txhua yam. Lub khoos phis tawj tuaj yeem ua tiav txhua qhov program chunk thiab hloov nws mus rau hauv tshuab lus