Nco Compression tau txhim kho koj lub Mac's Performance
Nrog tso tawm ntawm OS X Mavericks , Kua hloov li cas nco yog tswj ntawm Mac. Nrog kev sib ntxiv ntawm kev txav ceev, koj Mac ua tam sim no ua ntau dua nrog kev nco thaum tswj los yog nce kev ua tau zoo. Nyob rau hauv laus versions of OS X, nco pab tau ua nyob ib ncig ntawm ib qho zoo nkauj txheem tswj kev tswj system. Apps thov kom muaj kev faib ntawm RAM, lub kaw lus ua tiav qhov kev thov, thiab cov apps muab rov qab rau RAM thaum lawv tsis xav kom nws ntxiv.
Lub OS tau saib xyuas ntawm feem ntau ntawm cov hauj lwm qias neeg ua haujlwm kom khiav ntawm ntau npaum li cas RAM tau muaj thiab leej twg tau siv nws. Lub OS kuj xam pom tias yuav ua licas yog tias cov nyiaj RAM xav tau tsis muaj. Qhov kawg tom qab yog qhov tseem ceeb tshaj plaws vim tias yuav muaj teebmeem rau kev ua haujlwm ntawm Mac raws li qhov kev sim ua kom siv virtual virtual (qhov chaw sib pauv ntawm SSD los yog tus tsav nyuab).
Kua txawm muab ib lub cuab tam zoo nkauj, kev saib xyuas , uas lwm cov khoom, yuav saib xyuas seb Mac's RAM siv tau. Txawm hais tias Kev Ntsuam Xyuas Tseem Ceeb tseem muaj, nws txoj kev saib xyuas lub cim xeeb muaj peev xwm tau hloov ua txoj kev hloov, ib qho uas yog qhov Mac yog tam sim no ua tau zoo dua ntawm kev siv RAM los ntawm kev siv cov cim xeeb ntawm cov cim cia.
Compressed Nco
Compressed nco tsis yog ib yam tshiab los yog kom kua. Computing systems tau siv ntau hom kev nco compression rau ib lub sij hawm ntev. Yog tias koj siv Macs rov qab rau hauv nruab nrab-80s thiab ntxov 90s, koj yuav nco ntsoov cov khoom xws li RAM Doubler los ntawm Connectix, uas compressed cov ntaub ntawv muab cia hauv RAM, ua tau nce tus nqi dawb RAM muaj rau Mac. Kuv nco ntsoov pom RAM Doubler icon tshwm li kuv Mac Plus pib. Ntseeg kuv, lub Mac Plus, uas tsuas muaj 4 MB ntawm RAM, yuav tsum tau tag nrho cov kev pab uas RAM Doubler yuav muab nws.
Compressed memory utilities poob tawm ntawm haum li lub computer makers thiab OS developers tsim zoo dua tswj lub nruab. Nyob rau tib lub sijhawm, tus nqi pheej yig muaj tsawg. Lwm qhov zoo tshaj uas ua rau lub nruab nrab ntawm lub nruab nrog lub suab qiv tsis tau lawv qhov chaw yog qhov teeb meem. Kev nco yuam kev algorithms coj ib pob nyom khawm ntawm kev ua fais fab. Uas meant tias thaum lawv cia koj tau txais ntau dua nrog lub cev tsis tshua muaj RAM, lawv tended mus bog koj lub computer thaum lawv xav tau los compress or decompress nco.
Memory compression ua ib comeback, feem ntau vim yog lub advent ntawm pheej yig ntau tub ntxhais processors. Thaum twg cov niaj hnub siv los ua kom muaj kev txav ceev tuaj yeem xa tawm mus rau ib qho ntawm ntau cov cores hauv kev ua haujlwm, koj tsis paub tias yuav ua haujlwm twg thaum lub cim xeeb yuav tsum tau muab sib tov los yog decompressed. Nws tsuas yog ua haujlwm tom qab xwb.
Yuav ua li cas Compressed nco ua hauj lwm rau ib Mac
Memory compression nyob rau Mac yog tsim los ua kom cov kev lag luam hauv OS thiab ua lag luam los ntawm kev tswj kev siv nyiaj RAM zoo dua qub thiab tiv thaiv los yog txo qhov kev siv virtual nco, uas yog paging ntawm cov ntaub ntawv mus thiab los ntawm Mac's tsav.
Nrog OS X Mavericks (los yog tom qab), OS saib rau cov neeg tsis nco qab, uas yog cim xeeb uas tsis yog tam sim no siv tab sis tseem tuav cov ntaub ntawv uas yuav siv los ntawm ib qho app. Qhov no tsis nco qab compresses cov ntaub ntawv nws yog tuav, yog li cov ntaub ntawv yuav siv tsawg dua nco. Inactive nco yuav yog apps uas nyob hauv keeb kwm yav dhau los thiab tsis tau siv. Ib qho piv txwv yuav yog ib lo lus processor uas qhib, tiam sis tsis ua haujlwm vim tias koj tab tom noj ib ce thiab nyeem ntawv txog kev nco (ntawm txoj kev, ua tsaug rau kev siv ceev xwmphem los ntawm thiab nyeem cov ntawv no). Thaum koj nyob nraum khawm browsing web, OS yog compressing lo lus processor lub cim xeeb, pub dawb rau RAM siv los ntawm lwm lub apps, xws li Flash player koj siv los saib cov yeeb yam hauv web.
Txheej txheem kev nquag tsis nquag txhua lub sijhawm. Xwb, OS tshawb xyuas pom ntau npaum li cas yog muaj nyob hauv RAM . Yog hais tias muaj ib qho tseem ceeb ntawm cov cim xeeb dawb, tsis muaj compression yog ua tau, txawm tias muaj ntau heev tsis nco qab.
Raws li lub cim xeeb dawb cia li siv, OS OS tab tom nrhiav kev nco tsis nco qab kom hlob. Compression pib nrog cov ntaub ntawv tshaj plaws uas siv hauv kev nco thiab ua haujlwm nws txoj hau kev rau pem hauv ntej kom paub tseeb tias muaj kev qhia txaus dawb. Thaum twg cov ntaub ntawv nyob rau hauv thaj chaw ntawm RAM uas yog qhov xav tau, OS cia decompresses cov ntaub ntawv ntawm cov yoov thiab ua rau nws muaj nyob rau hauv app thov nws. Vim hais tias cov compression thiab decompression txhua hnub yog khiav concurrently rau ntawm ib tus processor cores , koj tsis tshua pom muaj kev poob kev kawm thaum compression / decompression tshwm sim.
Ntawm cov hoob kawm, muaj cov kev txwv rau qhov kev ywj pheej twg ncav cuag. Hauv qee qhov taw tes, yog tias koj tseem tso tawm apps los yog siv cov xovtooj ntawm kev siv xovtooj uas dhia mus txog RAM, koj Mac yuav tsis muaj chaw txaus. Xws li yav dhau los, tus OS yuav pib swap tsis ua ntaub ntawv rau koj tus Mac tsav. Tab sis, nrog kev ywj pheej compression, qhov no yuav yog ib qho tsis tshua muaj tshwm sim rau feem ntau cov neeg siv.
Txawm hais tias lub OS xaus los sib pauv mus rau koj tus tsav, OS X lub cim xeeb tswj qhov siv dua ntawm qhov kev nco tsis ywj siab los ntawm kev sau cov ntaub ntawv sib sau mus rau tag nrho-ntev tsav ntu, ntxiv kev ua tau zoo thiab txo hnav SSDs .
Yam Ntxim Saib Ntxim Saib thiab Ua Kom Ceev Txuag
Koj tuaj yeem sojntsuam ntau npaum li cas yog siv lub cim xeeb hauv kev ua ub no. Ib tug xov tooj ntawm compressed nco qhia nyob rau hauv lub cim xeeb Pressure teeb, uas qhia tau hais tias muaj npaum li cas tus OS yog koom tes nrog compressing RAM cov ntaub ntawv. Lub teeb yuav tig los ntawm ntsuab (me ntsis siab) mus rau daj (tseem ceeb siab), thiab thaum kawg los liab, thaum tsis muaj qhov chaw txaus RAM thiab nco tau lawm yuav tsum tau pauv mus rau tus tsav.
Yog li, yog hais tias koj twb pom tias koj Mac zoo li muaj ntau dua thaws rau hauv nws qhov kev kawm txij li thaum koj ntsia Mavericks, nws yuav zoo vim yog kev kho tshiab hauv kev tswj hwm thiab kev xa rov qab ntawm kev txav siab.