Ngokuqinisekileyo ulibonile igama elithi 'imemori ye-cache' ngaphezulu kwesihlandlo esinye, mhlawumbi ngelixa ufunda malunga nendlela yokwenza ngcono ukusebenza kwefowuni yakho okanye ikhompyuter. Lo ngumbono osondeleleneyo kuninzi lwezixhobo zedijithali esizisebenzisa yonke imihla. Kule post sichaza yintoni i-cache kwaye yeyantoni, uyicoca njani kwiimobiles zeWindows kunye neekhompyuter kwaye zeziphi iingenelo zokwenza njalo.
Inkumbulo ye-cache sisixhobo esiyimfuneko kwizicelo kunye neenkqubo ezisebenza ngokukhawuleza kuyo nayiphi na i-CPU. Izixhobo eziphathwayo kunye neekhompyuter zinolu hlobo lwememori ye-buffer, kunye nezikhangeli zewebhu. Njengezinye iindawo zokugcina, kudla ngokuba luluvo olulungileyo ukucima i-cache rhoqo ukuze isebenze kakuhle.
Yintoni i-cache kwaye yenzelwe ntoni?
Kwicomputing, ibinzana elithi 'cache memory' libhekisa kwisixhobo ekufuneka iYunithi yoPhando olusembindini (CPU) isenze. gcina okwexeshana idata esandul' ukusetyenzwa kwimemori encedisayo. Ikwabizwa ngokuba yinkumbulo yokufikelela ngokukhawuleza, kuba ibaleka ngokukhawuleza kuneyona nkumbulo iphambili ye-CPU kwaye yenza kube lula ukufikelela kwidatha esandul’ ukusetyenzwa.
Imemori ye-Cache yimemori ephakathi phakathi kwe-CPU kunye ne-RAM (iMemori yoFikelelo eRandom), esebenza ukufumana ixesha kunye nokugcina izixhobo xa kusetyenzwa idatha. Ngamanye amazwi, lo mthombo kunciphisa ixesha lokufikelela kwiinkcukacha ezibalulekileyo kwaye ugweme ukuphindaphinda kweenkqubo ukwandisa ixesha lokuphendula lesixhobo.
Phakathi idatha ebalulekileyo ehlala igcinwe kwi-cache ukunciphisa ixesha lofikelelo zezi:
- Idata esetyenziswa rhoqo iyakuba yinkcitho yexesha ukulayisha ukuba ibisoloko ilayishwa ukusuka kweyona nkumbulo icothayo.
- Idatha entsokothileyo ukuyivelisa, kuba ifuna inkqubo ebanzi yokubala okanye indibaniselwano yayo iphunyezwe kwimithombo eyahlukeneyo.
- Idatha ekufuneka isetyenziswe kunye kwaye igcinwe kwi-cache ukunqanda ukuyilayisha ngokwahlukeneyo.
Iintlobo ze-cache
Kukho iintlobo ezininzi zee-cache, kodwa sihlala siqhelene kakhulu nezimbini ngokukodwa:
- i-cache yediski, eyona nxalenye encinci yememori ye-RAM ehambelana ne-hard drive yokugcina idatha eyayisanda kusetyenziswa. Oku kuvumela ukuqaliswa okusebenzayo ngakumbi kunye nokulungiswa kweenkqubo ezifakiweyo kunye nezicelo.
- i-cache yewebhu, indawo enenyani ekhoyo kwizikhangeli zewebhu zokugcina okwexeshana idatha yamaphepha esisandula ukuwavula. Ukuba sivala iphepha kwaye silivule kwakhona, siya kuqaphela ukuba kuthatha ixesha elincinci ukulayisha. Oku kungenxa yokuba idatha efunekayo yokulayisha ijongwa kwi-cache, kwaye kungekhona kwiseva.
Isebenza njani i-cache?
Ukusebenza kwe-cache kulula kakhulu: igcina idatha esandul' ukusetyenzwa ukunika ufikelelo olukhawulezayo kuyo kwaye ngaloo ndlela wonge ixesha kunye nezixhobo. Makhe sinike umzekelo ukuze siyiqonde ngcono:
Xa sikhangela i-intanethi okanye sizame ukuvula i-app ekhompyutheni okanye kwiselula, isibonelelo siyacelwa kwisistim. Oko kukuthi, sicela iqela ukuba lenze isenzo ngedatha ethile.
Ngokuhambelana inkqubo ijonga idatha kwi-cache okanye imemori yofikelelo olukhawulezayo ukugcina ixesha; ukuba zikhona, inyathelo eliceliweyo lenziwa ngokukhawuleza, elaziwa ngokuba i-cache hit okanye cache hit.
Endaweni yoko, ukuba isibonelelo esiceliweyo asikho kuyo, idatha ilayishwa kwinkqubo ephantsi (i-RAM okanye iseva), edla ixesha elininzi kunye nezixhobo (i-cache miss okanye i-cache miss). Le datha igcinwe kwi-cache ukwenzela ukuba xa icelwa kwakhona kwixesha elizayo, iya kufunyanwa apho.
Cima i-cache: kutheni kuyimfuneko?
Kucacile ukuba ukusetyenziswa kwememori ye-cache kwisixhobo se-elektroniki esahlukileyo sanamhlanje kubalulekile ukunyusa ukusebenza kwayo. Enkosi kolufikelelo olukhawulezayo lwenkumbulo yethutyana, iikhomputha kunye nezixhobo eziphathwayo zithatha ixesha elincinci ukuphendula kwaye zisebenze ngokufanelekileyo. Amaxesha omthwalo afinyeziwe kwaye izibonelelo ezifunekayo ukuqhuba iinkqubo ziyagcinwa.
Nangona kunjalo, ekubeni imemori ye-cache inesithuba sokugcina esinesiphelo (esihlala singekho sikhulu kakhulu), kuyinto eqhelekileyo ukuba izalise ixesha elide. Ngesi sizathu, iprosesa yekhompyuter iqhuba inkqubo yokucima ngaphandle kokuba ungenelelo lwethu luyimfuneko. Nangona kunjalo, ngamanye amaxesha kuyimfuneko bhenela ekucocweni kwe-cache ngesandla ukuze inkqubo ikhulule indawo.
Uyicoca njani i-cache yezixhobo zakho?
Xa sithetha ngememori ye-cache, akunakuphepheka ukuba sizibuze indlela yokucima idatha egcinwe kuyo. Ukuba ufuna ukwazi ukuba ungayicima njani i-cache yesikhangeli kunye nezicelo kwiselula yakho, yiya kwindawo yokungena indlela yokucoca i-cache yeselula ukukhulula indawo. Kwelinye icala, ukuba ufuna ntoni khulula indawo yecache kwikhompyuter yakho yeWindows, Landela le miyalelo ingezantsi:
- Cinezela izitshixo zeWindows + S ukuzisa injini yokukhangela inkqubo kwaye uchwetheze i-Dick Cleanup, esisixhobo seWindows sokukhulula indawo yokugcina.
- Khetha isixhobo kwaye ukhethe idrayivu ofuna ukukhulula indawo kuyo.
- Emva koko, inkqubo iya kwenza i-scan ye-drive ekhethiweyo ukubala indawo enokucima, kuquka i-cache data.
- Qinisekisa into ofuna ukuyicima kwaye ucofe u-'Kulungile'.
Ziziphi iingenelo zokucoca i-cache?
Ukucima idatha egciniweyo amaxesha ngamaxesha kunenzuzo ngezi zizathu zilandelayo:
- Indawo evalelweyo ikhululiwe ngeenkqubo ekusenokwenzeka ukuba azisaqhubeki, evula ithuba leenkqubo ezintsha eziza kubanjwa.
- Yandisa isantya kunye nokusebenza xa ubrawuza i-intanethi, ngakumbi ukuba sichitha ixesha elininzi kwi-intanethi kwaye sivule amaphepha ahlukeneyo ewebhu.
- Umkhondo wedatha yomntu uyasuswa eziye zagcinwa okwethutyana kwi-cache, enciphisa umngcipheko wokuvezwa kolwazi oluxabisekileyo okanye oluyimfihlo, ngakumbi ukuba sisebenzisa iikhompyuter zoluntu okanye ekwabelwana ngazo.
- Iibhugi zebhrawuza zilungisiwe, njengamaphepha angalayishiyo. Ukongeza, inguqulelo yamva nje yephepha lewebhu iyaboniswa.
Okokugqibela, khumbula ukuba ukucima i-cache akufani nokucoca idatha kwizixhobo zakho. Njengoko sele sichazile, iikopi zedatha zigcinwe kwi-cache ukukhawulezisa ukuphunyezwa kweenkqubo. Ngoko Ukucima i-cache ayicimi izicwangciso zakho okanye izinto ozikhethayo, kwaye ayicimi idata egcinwe kwihard drive yakho.