{"id":6575,"date":"2024-06-06T11:03:24","date_gmt":"2024-06-06T11:03:24","guid":{"rendered":"http:\/\/the-codest.localhost\/dictionary\/direct-memory-access-dma\/"},"modified":"2024-06-06T11:03:24","modified_gmt":"2024-06-06T11:03:24","slug":"tiesiogine-prieiga-prie-atminties-dma","status":"publish","type":"dictionary","link":"https:\/\/thecodest.co\/lt\/dictionary\/direct-memory-access-dma\/","title":{"rendered":"Tiesiogin\u0117 prieiga prie atminties Dma"},"content":{"rendered":"<h1>Tiesiogin\u0117 prieiga prie atminties (DMA)<\/h1>\n<p>Tiesiogin\u0117 prieiga prie atminties (DMA) - tai kompiuterio aparatin\u0117s \u012frangos funkcija, leid\u017eianti <a href=\"https:\/\/thecodest.co\/lt\/blog\/app-data-collection-security-risks-value-and-types-explored\/\">duomenys<\/a> perkelti i\u0161 vieno \u012frenginio \u012f kit\u0105 ir atmint\u012f be centrinio procesoriaus \u012fsiki\u0161imo. DMA leid\u017eia tokiems \u012frenginiams, kaip garso plok\u0161t\u0117s, tinklo adapteriai ir kietieji diskai, perduoti duomenis tiesiai \u012f atmint\u012f ir i\u0161 jos, taip atlaisvinant procesoriaus viet\u0105 kitoms u\u017eduotims atlikti.<\/p>\n<p>DMA ypa\u010d naudinga perduodant didelius duomen\u0173 kiekius, nes ji gali gerokai suma\u017einti procesoriaus prid\u0117tines i\u0161laidas, reikalingas perdavimui. D\u0117l to gali pager\u0117ti sistemos na\u0161umas ir suma\u017e\u0117ti v\u0117lavimas.<\/p>\n<p>Yra du DMA tipai: magistral\u0117s valdymo DMA ir tre\u010diosios \u0161alies DMA. Bus mastering DMA leid\u017eia \u012frenginiui perimti sistemos magistral\u0117s valdym\u0105 ir tiesiogiai atlikti perdavimus, o tre\u010diosios \u0161alies DMA apima special\u0173 DMA valdikl\u012f, kuris valdo perdavimus \u012frengini\u0173 vardu.<\/p>\n<p>Nors DMA gali labai padidinti sistemos na\u0161um\u0105, ji taip pat gali kelti pavoj\u0173 saugumui. Kenk\u0117ji\u0161ka programin\u0117 \u012franga gali pasinaudoti DMA ir pasiekti atmintyje esan\u010dius slaptus duomenis, tod\u0117l gali b\u016bti pa\u017eeisti duomenys ar kilti kit\u0173 saugumo incident\u0173. Tod\u0117l svarbu \u012fdiegti tinkamas saugumo priemones, pavyzd\u017eiui, DMA apsaug\u0105, kad b\u016bt\u0173 suma\u017einta \u0161i rizika.<\/p>\n<p>Apibendrinant galima pasakyti, kad DMA yra aparatin\u0117s \u012frangos funkcija, leid\u017eianti \u012frenginiams perduoti duomenis tiesiogiai \u012f atmint\u012f ir i\u0161 jos be procesoriaus \u012fsiki\u0161imo. Ji gali labai padidinti sistemos na\u0161um\u0105, ta\u010diau taip pat kelia saugumo pavoj\u0173, kur\u012f b\u016btina pa\u0161alinti.<\/p>","protected":false},"excerpt":{"rendered":"<p>Su\u017einokite apie tiesiogin\u0119 prieig\u0105 prie atminties (DMA) ir tai, kaip ji gali pagerinti sistemos na\u0161um\u0105, nes leid\u017eia \u012frenginiams perduoti duomenis tiesiai \u012f atmint\u012f ir i\u0161 jos. #DMA #sistemos na\u0161umas<\/p>","protected":false},"template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-6575","dictionary","type-dictionary","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Direct Memory Access Dma - The Codest<\/title>\n<meta name=\"description\" content=\"Learn about Direct Memory Access (DMA) and how it can improve system performance by allowing devices to transfer data directly to and from memory. #DMA #systemperformance\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/thecodest.co\/lt\/zodynas\/tiesiogine-prieiga-prie-atminties-dma\/\" \/>\n<meta property=\"og:locale\" content=\"lt_LT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Direct Memory Access Dma - 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The Codest","description":"Su\u017einokite apie tiesiogin\u0119 prieig\u0105 prie atminties (DMA) ir tai, kaip ji gali pagerinti sistemos na\u0161um\u0105, nes leid\u017eia \u012frenginiams perduoti duomenis tiesiai \u012f atmint\u012f ir i\u0161 jos. #DMA #sistemos na\u0161umas","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/thecodest.co\/lt\/zodynas\/tiesiogine-prieiga-prie-atminties-dma\/","og_locale":"lt_LT","og_type":"article","og_title":"Direct Memory Access Dma - The Codest","og_description":"Learn about Direct Memory Access (DMA) and how it can improve system performance by allowing devices to transfer data directly to and from memory. #DMA #systemperformance","og_url":"https:\/\/thecodest.co\/lt\/zodynas\/tiesiogine-prieiga-prie-atminties-dma\/","og_site_name":"The Codest","og_image":[{"width":1200,"height":675,"url":"https:\/\/thecodest.co\/app\/uploads\/2024\/06\/cover-image.png","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/thecodest.co\/dictionary\/direct-memory-access-dma\/","url":"https:\/\/thecodest.co\/dictionary\/direct-memory-access-dma\/","name":"Tiesiogin\u0117 prieiga prie Dma atminties - 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