/dev/shm ayilutho ngaphandle kokuqaliswa komqondo wenkumbulo owabiwe wendabuko. Kuyindlela ephumelelayo yokudlulisa idatha phakathi kwezinhlelo. Uhlelo olulodwa luzodala ingxenye yememori, ezinye izinqubo (uma zivunyelwe) ezingafinyelela kuyo. Lokhu kuzoholela ekusheshiseni izinto ku-Linux.
Uyini usayizi we-SHM?
Ipharamitha yosayizi we-shm ikuvumela ukuthi ucacise inkumbulo eyabiwe engasetshenziswa isiqukathi. Ivumela iziqukathi ezinememori ukuthi zisebenze ngokushesha ngokunikeza ukufinyelela okwengeziwe kumemori eyabiwe. Ipharamitha ye-tmpfs ikuvumela ukuthi ukhuphule ivolumu yesikhashana kumemori.
Ingabe i-dev SHM isebenzisa isikhala sediski?
Ngokwazi kwami, /dev/shm futhi iyisikhala ku-HDD ngakho isivinini sokufunda/sokubhala siyefana. Inkinga yami ukuthi, nginefayela elingu-96GB kanye ne-RAM engu-64GB kuphela (+ 64GB swap). Bese, imicu eminingi evela kunqubo efanayo idinga ukufunda izingcezu ezincane ezingahleliwe zefayela (cishe u-1.5MB).
Yandisa kanjani i-SHM Linux?
Shintsha usayizi we-/dev/shm Filesystem Ku-Linux
- Isinyathelo 1: Vula /etc/fstab nge-vi nanoma yimuphi umhleli wombhalo ozikhethele wona. Isinyathelo sesi-2: Thola umugqa we/dev/shm bese usebenzisa inketho kasayizi we-tmpfs ukuze ucacise usayizi olindelekile.
- Isinyathelo sesi-3: Ukuze wenze ushintsho lusebenze ngokushesha, sebenzisa lo myalo wokukhweza ukuze ukhweze kabusha uhlelo lwefayela lwe/dev/shm:
- Isinyathelo sesi-4: Qinisekisa.
Ngiwumisa kanjani usayizi we-SHM?
Ungashintsha usayizi we-shm ngokuthi ukudlulisa ipharamitha yokuzikhethela -shm-size kumyalo wokugijima we-docker. Okuzenzakalelayo kungu-64MB. Uma usebenzisa i-docker-compose, ungasetha i- your_service. shm_size value uma ufuna isiqukathi sakho sisebenzise lowo /dev/shm size uma sisebenza noma your_service.
Luyini uhlelo lwefayela le-SHM?
shm/shmfs yaziwa nangokuthi tmpfs, okuyigama elivamile le-a indawo yokugcina amafayela yesikhashana kumasistimu amaningi wokusebenza afana ne-Unix. Kuhloswe ukuthi kuvele njengesistimu yefayela ekhweziwe, kodwa esebenzisa imemori ebonakalayo esikhundleni sedivayisi yokugcina eqhubekayo.
Ingabe i-dev SHM ivikelekile?
Enye yezinkinga ezinkulu zokuphepha nge-/dev/shm ithi noma ubani angalayisha futhi asebenzise amafayela ngaphakathi kwe /dev/shm efana ne/tmp ukwahlukanisa. Landela lezi zinyathelo ezingezansi ukuze uvikele isistimu yefayela ye-tmpfs. Hlela /etc/fstab bese ushintsha imigqa elandelayo.
Uyenza kanjani i-dev SHM?
Ukushintsha ukucushwa kwe/dev/shm, engeza umugqa owodwa ku-/etc/fstab njenge uyalandela. Lapha, usayizi we/dev/shm ulungiselelwe ukuthi ube ngu-8GB (qiniseka ukuthi unenkumbulo eyanele yomzimba efakiwe).
Uyini umehluko phakathi kwe-Ramfs ne-tmpfs?
Ama-Ramf azokhula ngamandla. Kodwa uma idlula isamba sikasayizi we-RAM, isistimu ingase ilenge, ngoba i-RAM igcwele, futhi ayikwazi ukugcina enye idatha. I-Tmpfs ngeke ikhule ngokushintshashintshayo. Ngeke ikuvumele ukuthi ubhale ngaphezu kosayizi owushilo ngenkathi ukhweza ama-tmpfs.
Singakwazi ukwandisa i-dev SHM?
Faka ekugcineni kwefayela umugqa akukho /dev/shm tmpfs okuzenzakalelayo,usayizi=4G 0 0 , bese ulungisa umbhalo ngemva kwalokho usayizi= . Isibonelo uma ufuna i-8G usayizi, buyisela usayizi=4G ngo usayizi=8G . Phuma kumhleli wakho wombhalo, bese ugijima (nge-sudo uma kudingeka) $ mount /dev/shm .
Ikuphi i-dev SHM?
Kusuka ku-Wikipedia: Ukwakhiwa kwakamuva kwe-Linux 2.6 kernel sekuqalile ukunikela /dev/shm njengenkumbulo eyabiwe ngendlela ye-ramdisk, ikakhulukazi njengohlu lwemibhalo olubhalwa emhlabeni wonke olugcinwe enkumbulweni enomkhawulo ochaziwe /etc/default/tmpfs. /dev/shm ukwesekwa kungakhethwa ngokuphelele ngaphakathi kwefayela le-kernel config.
Ngiwazi kanjani usayizi we-Tmpfs yami?
Kusuka ku-http://www.kernel.org/doc/Documentation/filesystems/tmpfs.txt: Ngokuqhubekayo ungabheka ukusetshenziswa kwangempela kwe-RAM+swap kwesibonelo se-tmpfs esithi df(1) kanye no-du(1). ngakho-ke 1136 KB iyasebenza. ngakho-ke i-1416 KB iyasebenza.