Video: Dab tsi yog lub tswv yim los tswj cov kev txwv ntawm kev nkag mus ntawm cov peev txheej thaum ntau cov xov raug tua hauv Redis?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
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Khaws qhov no hauv kev txiav txim siab, Redis ua li cas nrog kev sib raug zoo?
Ib qho kev pabcuam ib leeg tuaj yeem muab tau sib npaug ntawm I / O qib los ntawm kev siv I / O (de) multiplexing mechanism thiab lub voj xwm txheej (uas yog dab tsi Redis ua ). Parallelism muaj tus nqi: nrog rau ntau lub qhov (sockets) / ntau cores koj tuaj yeem nrhiav tau ntawm cov khoom siv niaj hnub no, synchronization ntawm threads yog kim heev.
Tsis tas li ntawd, puas yog txoj cai nco uas rov qab ua yuam kev thaum lub cim xeeb txwv tau mus txog thiab tus neeg siv tau sim ua cov lus txib uas ua rau muaj kev siv ntau dua? Thaum tus nqi teev ntawm nco yog mus txog , nws muaj peev xwm xaiv ntawm cov cwj pwm txawv, hu ua txoj cai . Redis tuaj yeem ua tau rov ua yuam kev rau lus txib uas ua tau ua rau muaj kev nco ntau dua ua siv , lossis nws tuaj yeem tshem tawm qee cov ntaub ntawv qub thiaj li yuav rov qab los rov qab mus rau qhov teev tseg txwv txhua zaus ntxiv cov ntaub ntawv tshiab.
Hais txog qhov no, qhov twg hauv qab no yog qhov txiaj ntsig ntawm kev xa dej hauv Redis?
Qhov zoo ntawm Pipelining Lub ntsiab qhov zoo ntawm Redis pipelining yog speeding li Redis kev ua tau zoo. Nws drastic txhim kho cov txheej txheem kev ua tau zoo vim yog ntau cov lus txib ib txhij ua tiav.
Puas yog Redis xov muaj kev nyab xeeb?
Nkag mus rau Redis GIL Luckily, Salvatore Sanfilippo tau ntxiv kev hloov pauv hloov tsuas yog nyob ze ntawm qhov kawg ntawm Redis 4.0 thiab tso tawm cov modules API: Xov Safe Cov ntsiab lus thiab Lub Ntiaj Teb Xauv. Lub tswv yim yog yooj yim. Thaum Redis tseem tseem nyob ib leeg threaded, ib module tuaj yeem khiav ntau xov.
Pom zoo:
Dab tsi yog qhov txawv ntawm kev tswj qhov xwm txheej thiab kev tswj xyuas qhov xwm txheej loj?
Yog li MI yog hais txog kev lees paub tias qhov xwm txheej ib txwm muaj thiab Kev Tswj Xyuas Teeb Meem yuav tsis txiav nws. Ib qho xwm txheej loj yog kev tshaj tawm ntawm lub xeev xwm txheej ceev. Ib qho xwm txheej loj yog nruab nrab ntawm qhov xwm txheej ib txwm muaj thiab kev puas tsuaj (qhov twg IT Service Continuity Management txheej txheem pib)
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Lub tswv yim kev ruaj ntseg txheej txheej yog dab tsi?
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Muaj ob hom tswv yim txhawb rau "datetime" zoo li cov tswv yim. 2. Hom "datetime-local" input type yog tswj hwm hnub tim-thiab-lub sij hawm hauv zos. Kev tswj cov tswv yim nrog "datetime-local" input type sawv cev rau kev tswj hwm uas nws lub ntsiab lus muaj nqis sawv cev rau hnub tim thiab lub sijhawm hauv zos (thiab tsis muaj cov ntaub ntawv teev sijhawm)