Chokwadi iwe wakaona izwi rekuti 'cache memory' kanopfuura chiitiko chimwe, pamwe uchiverenga nezve maitiro ekugadzirisa mashandiro enharembozha yako kana komputa. Iyi ipfungwa ine hukama zvakanyanya nezvakawanda zvemidziyo yedhijitari yatinoshandisa zuva nezuva. Muchinyorwa chino tinotsanangura chii chinonzi cache uye ndechei, maitiro ekuichenesa paWindows mobiles nemakomputa uye ndezvipi zvakanakira kuita kudaro.
Cache memory chinhu chakakosha chekushandisa uye zvirongwa zvekumhanya zvakanyanya pane chero CPU. Nharembozha nemakomputa zvine rudzi urwu rwebuffer memory, pamwe nemabhurawuza ewebhu. Sezvakaita dzimwe nzvimbo dzekuchengetera, kazhinji ipfungwa yakanaka kubvisa cache nguva nenguva kuti ishande nemazvo.
Chii chinonzi cache uye ndechei?
Mukombuta, izwi rekuti 'cache memory' rinoreva sosi iyo Central Processing Unit (CPU) inofanirwa kuita. chengetedza kwenguva pfupi data ichangobva kugadziriswa mundangariro yekubatsira. Iyo inozivikanwawo sekukurumidza kuwana ndangariro, nekuti inomhanya nekukurumidza kupfuura iyo huru ndangariro yeCPU uye inoita kuti zvive nyore kuwana ichangobva kugadziriswa data.
Cache ndangariro chiyeuchidzo chepakati pakati peCPU ne RAM (Random Access Memory), iyo inoshanda kuwana nguva uye kuchengetedza zviwanikwa paunenge uchigadzira data. Nemamwe manzwi, sosi iyi inoderedza nguva yekuwana kune data yakakosha uye inodzivirira kudzokorora kwemaitiro kugadzirisa nguva yekupindura yemidziyo.
Pakati pe data yakakosha iyo inowanzochengetwa mu cache kuderedza nguva yekuwana ndeiyi:
- Inowanzo shandiswa data iyo ingave kutambisa nguva kurodha kana yaigara yakatakurwa kubva kune inononoka ndangariro.
- Iyo data yakaoma kugadzira, nekuti inoda yakadzika computational maitiro kana iyo musanganiswa unoitwa kubva kwakasiyana masosi.
- Dhata dzinofanirwa kushandiswa pamwe chete uye nekudaro dzakachengetwa kuti dzirege kudziisa yega.
Mhando dze cache
Kune akati wandei marudzi e cache, asi isu tinowanzo nyanya kujairana neaviri kunyanya:
- disk cache, inova chikamu chidiki che RAM ndangariro yakabatana neiyo hard drive yekuchengetedza data ichangobva kushandiswa. Izvi zvinobvumira kutanga uye kugadzirisa kwemapurogiramu akaiswa uye maapplication.
- web cache, inzvimbo chaiyo iripo mumabhurawuza kuti ichengetedze kwenguva pfupi data yemapeji yatichangobva kuvhura. Kana tikavhara peji uye tikazarura zvakare, tichaona kuti zvinotora nguva shoma kuti titakure. Izvi zvinodaro nekuti iyo inodiwa yekuisa data inotariswa kumusoro mune cache, uye kwete pane server.
Ko cache inoshanda sei?
Kushanda kwecache kuri nyore kwazvo: inochengetedza data ichangobva kugadziriswa kuti ipe kukurumidza kuwana kwairi uye nekudaro kuchengetedza nguva nezviwanikwa. Ngatipei muenzaniso kuti tinzwisise zviri nani:
Kana isu tichitsvaga internet kana kuedza kuvhura app pakombuta kana nharembozha, sosi inokumbirwa kubva kuhurongwa. Ndokunge, tiri kukumbira timu kuti iite chiito neimwe data.
Naizvozvo iyo sisitimu inotarisa iyo data mucache kana kukurumidza kuwana ndangariro kuchengetedza nguva; kana varipo, chiito chakakumbirwa chinoitwa nekukurumidza, icho chinozivikanwa se cache hit kana cache hit.
Pane kudaro, kana iyo yakakumbirwa sosi isiri mairi, iyo data inotakurwa kubva kune iri pasi system (RAM kana sevha), iyo inoshandisa nguva yakawanda uye zviwanikwa (cache miss kana cache miss). Iyi data inochengetwa mu cache kuitira kuti kana ikakumbirwa zvakare mune ramangwana, inotorwa kubva ipapo.
Bvisa cache: nei zvichidikanwa?
Zviripachena kuti kushandiswa kwecache memory mune akasiyana emazuva ano michina yemagetsi kwakakosha kukwirisa kuita kwayo. Kutenda kune iyi yekukurumidza kuwana yenguva ndangariro, makomputa uye nharembozha zvinotora nguva shoma kupindura uye kushanda zvakanyanya. Nguva dzekuremerwa dzakapfupikiswa uye zviwanikwa zvinodiwa kumhanyisa maitiro zvinochengetwa.
Nekudaro, sezvo iyo cache ndangariro ine inopera yekuchengetera nzvimbo (iyo kazhinji isiri yakakura kwazvo), zvakajairika kuti izadze nekufamba kwenguva. Nechikonzero ichi, komputa pachayo processor inoita yenguva yekudzima maitiro pasina kupindira kwedu kuve kwakakosha. Zvisinei, dzimwe nguva zvinokosha shandisa kucheneswa kwemanyore kwecache kuitira kuti sisitimu isunungure nzvimbo.
Nzira yekubvisa sei cache yemidziyo yako?
Kana tichitaura nezve cache memory, hazvigoneke kuti tizvibvunze isu nzira yekudzima iyo data yakachengetwa mairi. Kana iwe uchida kuziva maitiro ekudzima cache yebrowser uye maapplication pafoni yako, enda kune yekupinda nzira yekubvisa nhare cache kusunungura nzvimbo. Ukuwo, kana zvaunoda ndizvo sunungura cache nzvimbo pane yako Windows komputa, tevera rairo pazasi:
- Dzvanya makiyi eWindows + S kuunza system yekutsvaga injini uye nyora Disck Cleanup, inova iyo Windows chishandiso chekusunungura nzvimbo yekuchengetera.
- Sarudza chishandiso uye sarudza dhiraivha yaunoda kusunungura nzvimbo pairi.
- Zvadaro, sisitimu ichaita scan yedhiraivha yakasarudzwa kuverenga nzvimbo inogona kudzimwa, kusanganisira iyo cache data.
- Simbisa zvaunoda kudzima uye baya 'OK'.
Ndezvipi zvakanakira kubvisa cache?
Kubvisa cached data nguva nenguva kunobatsira nekuda kwezvikonzero zvinotevera:
- Nzvimbo yakagarwa inosunungurwa nematanho angave asisashande, achipa nzvimbo yekuti maitiro matsva aitwe.
- Inowedzera kumhanya uye kuita kana uchitsvaga internet, kunyanya kana tikapedza nguva yakawanda paIndaneti uye tichizarura mapeji akasiyana-siyana ewebhu.
- Mateki e data remunhu anobviswa izvo zvakachengetwa kwenguva pfupi mu cache, izvo zvinoderedza ngozi yekufumura ruzivo rwakakosha kana rwepachivande, kunyanya kana tikashandisa makombiyuta evanhu kana kugoverana.
- Browser bugs dzakagadziriswa, semapeji asingatakuri. Pamusoro pezvo, iyo yazvino vhezheni yewebhu peji inoratidzwa.
Chekupedzisira, yeuka kuti kubvisa cache hakuna kufanana nekubvisa data kubva kumidziyo yako. Sezvatakatsanangura kare, makopi e data anochengetwa mu cache kuti akurumidze kuitwa kwemaitiro. Saka kubvisa cache hakubvisi zvigadziriso zvako kana zvaunofarira, uye hazvidzime data rakachengetwa pahard drive yako.