/dev/shm ayisiyonto ngaphandle kokuphunyezwa kwengcamango yenkumbulo ekwabelwana ngayo. Yindlela efanelekileyo yokudlulisa idatha phakathi kweenkqubo. Inkqubo enye iya kudala inxalenye yememori, apho ezinye iinkqubo (ukuba zivumelekile) zinokufikelela. Oku kuya kubangela ukukhawulezisa izinto kwiLinux.
Yintoni ubungakanani be-SHM?
Ipharamitha yobungakanani be-shm ikuvumela ukuba ukhankanye inkumbulo ekwabelwana ngayo enokusetyenziswa ngumgqomo. Yenza ukuba izikhongozeli zememori zisebenze ngokukhawuleza ngokunika ufikelelo oluninzi kwimemori eyabelweyo. I parameter ye tmpfs ikuvumela ukuba unyuse umthamo wethutyana kwinkumbulo.
Ngaba i-dev SHM isebenzisa indawo yedisk?
Ngokwazi kwam, /dev/shm ikwayindawo kwiHDD ngoko ke isantya sokufunda/sokubhala siyafana. Ingxaki yam kukuba, ndinefayile ye-96GB kunye ne-64GB RAM kuphela (+ 64GB swap). Emva koko, imisonto emininzi evela kwinkqubo efanayo kufuneka ifunde iinqununu ezincinci zefayile (malunga ne-1.5MB).
Uyonyusa njani i-SHM Linux?
Phinda ubungakanani /dev/shm Inkqubo yeFayile kwiLinux
- Inyathelo 1: Vula /etc/fstab nge vi okanye nawuphi na umhleli wombhalo owuthandayo. Inyathelo 2: Fumana umgca we /dev/shm kwaye usebenzise i tmpfs ubungakanani ukhetho ukucacisa ubungakanani obulindelekileyo.
- Inyathelo 3: Ukwenza utshintsho lusebenze kwangoko, sebenzisa lo myalelo wokunyuka ukuze unyuke kwakhona /dev/shm inkqubo yefayile:
- Inyathelo lesi-4: Qinisekisa.
Ndiwuseta njani ubungakanani be-SHM?
Ungaguqula ubungakanani be-shm nge Ugqithisa iparameter ekhethiweyo -shm-ubungakanani kwidocker sebenzisa umyalelo. Ukungagqibeki yi-64MB. Ukuba usebenzisa idocker-compose, unokuseta i_service yakho. shm_size ixabiso ukuba ufuna isikhongozeli sakho sisebenzise loo /dev/shm ubungakanani xa usebenza okanye i_service yakho.
Yintoni inkqubo yefayile ye-SHM?
shm / shmfs ikwabizwa ngokuba yi-tmpfs, eligama eliqhelekileyo le indawo yokugcina ifayile yethutyana kwiindlela ezininzi zokusebenza ezifana ne-Unix. Yenzelwe ukuvela njengenkqubo yefayile enyusiweyo, kodwa leyo isebenzisa inkumbulo yenyani endaweni yesixhobo sogcino esizingileyo.
Ngaba i-dev SHM ikhuselekile?
Omnye umba omkhulu wokhuseleko nge/dev/shm yi nabani na unokulayisha kwaye enze iifayile ngaphakathi /dev/shm iyafana ne/tmp isahlulelo. Landela la manyathelo angezantsi ukukhusela inkqubo yefayile ye-tmpfs. Hlela i/etc/fstab kwaye ubuyisele le migca ilandelayo.
Uyenza njani i-dev SHM?
Ukutshintsha uqwalaselo lwe/dev/shm, yongeza umgca omnye ku /etc/fstab njenge iyalandela. Apha, ubungakanani be/dev/shm buqwalaselwe ukuba bube yi-8GB (qiniseka ukuba unenkumbulo eyaneleyo yomzimba efakiweyo).
Yintoni umahluko phakathi kweRamfs kunye netmpfs?
IiRamfs ziya kukhula ngamandla. Kodwa xa idlula ubungakanani be-RAM iyonke, inkqubo inokuxhoma, kuba i-RAM igcwele, kwaye ayikwazi ukugcina enye idatha. Ii-Tmpfs aziyi kukhula ngamandla. Ayizukukuvumela ukuba ubhale ngaphezulu kobungakanani obuchazileyo ngelixa unyusela iitmpfs.
Ngaba singakwazi ukwandisa i-SHM ye-dev?
Fakela ekupheleni kwefayile umgca akukho nanye /dev/shm tmpfs ukungagqibeki,ubungakanani=4G 0 0 , kwaye ulungise okubhaliweyo emva koko ubungakanani= . Umzekelo ukuba ufuna i-8G ubungakanani, ithathe indawo yayo ubungakanani=4G nge ubungakanani=8G . Phuma kumhleli wakho wokubhaliweyo, emva koko baleka (nge sudo ukuba iyafuneka) $ nyuka /dev/shm .
Iphi i-dev SHM?
Ukusuka kwiWikipedia: Kutshanje i-2.6 Linux kernel builds iqalile ukunika /dev/shm njengenkumbulo ekwabelwanayo ngayo ngendlela yeramdisk, ngakumbi njengolawulo lwehlabathi olubhalwe phantsi olugcinwe kwinkumbulo ngomda ochaziweyo /etc/default/tmpfs. /dev/shm inkxaso ikhethwa ngokupheleleyo ngaphakathi kwefayile yoqwalaselo lwekernel.
Ndibazi njani ubungakanani bee-Tmpfs zam?
Ukusuka ku-http://www.kernel.org/doc/Documentation/filesystems/tmpfs.txt: Ngaphezulu ungajonga eyona RAM +usetyenziso lotshintshiselwano yomzekelo we-tmpfs kunye ne-df(1) kunye ne-du(1). ngoko ke 1136 KB iyasebenza. ngoko ke 1416 KB iyasebenza.