{"id":13818,"date":"2022-06-08T14:34:55","date_gmt":"2022-06-08T17:34:55","guid":{"rendered":"https:\/\/absam.io\/blog\/?p=13818"},"modified":"2022-06-08T14:34:55","modified_gmt":"2022-06-08T17:34:55","slug":"kvm","status":"publish","type":"post","link":"https:\/\/absam.io\/blog\/kvm\/","title":{"rendered":"Kernel-based Virtual Machine (KVM) &#8211; Por tr\u00e1s da tecnologia"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"13818\" class=\"elementor elementor-13818\" data-elementor-settings=\"{&quot;element_pack_global_tooltip_width&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;element_pack_global_tooltip_width_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;element_pack_global_tooltip_width_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;element_pack_global_tooltip_padding&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;top&quot;:&quot;&quot;,&quot;right&quot;:&quot;&quot;,&quot;bottom&quot;:&quot;&quot;,&quot;left&quot;:&quot;&quot;,&quot;isLinked&quot;:true},&quot;element_pack_global_tooltip_padding_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;top&quot;:&quot;&quot;,&quot;right&quot;:&quot;&quot;,&quot;bottom&quot;:&quot;&quot;,&quot;left&quot;:&quot;&quot;,&quot;isLinked&quot;:true},&quot;element_pack_global_tooltip_padding_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;top&quot;:&quot;&quot;,&quot;right&quot;:&quot;&quot;,&quot;bottom&quot;:&quot;&quot;,&quot;left&quot;:&quot;&quot;,&quot;isLinked&quot;:true},&quot;element_pack_global_tooltip_border_radius&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;top&quot;:&quot;&quot;,&quot;right&quot;:&quot;&quot;,&quot;bottom&quot;:&quot;&quot;,&quot;left&quot;:&quot;&quot;,&quot;isLinked&quot;:true},&quot;element_pack_global_tooltip_border_radius_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;top&quot;:&quot;&quot;,&quot;right&quot;:&quot;&quot;,&quot;bottom&quot;:&quot;&quot;,&quot;left&quot;:&quot;&quot;,&quot;isLinked&quot;:true},&quot;element_pack_global_tooltip_border_radius_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;top&quot;:&quot;&quot;,&quot;right&quot;:&quot;&quot;,&quot;bottom&quot;:&quot;&quot;,&quot;left&quot;:&quot;&quot;,&quot;isLinked&quot;:true}}\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-9c75303 elementor-section-boxed elementor-section-height-default elementor-section-height-default mkdf-parallax-row-no mkdf-row-grid-no mkdf-disabled-bg-image-bellow-no\" data-id=\"9c75303\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-ca9bca6\" data-id=\"ca9bca6\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-afdec01 elementor-widget elementor-widget-spacer\" data-id=\"afdec01\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-b81368d elementor-section-boxed elementor-section-height-default elementor-section-height-default mkdf-parallax-row-no mkdf-row-grid-no mkdf-disabled-bg-image-bellow-no\" data-id=\"b81368d\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2929cb3\" data-id=\"2929cb3\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-92e00cd elementor-widget elementor-widget-text-editor\" data-id=\"92e00cd\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>KVM (Kernel-based Virtual Machine) hoje \u00e9 a principal tecnologia de virtualiza\u00e7\u00e3o de c\u00f3digo aberto no Linux. Ele \u00e9 vem instalado nativamente nas distribui\u00e7\u00f5es Linux e transforma servidores f\u00edsicos subjacentes em hipervisores para que eles possam hospedar v\u00e1rias m\u00e1quinas virtuais (VMs) isoladas, \u00a0sendo uma ferramenta ideal para virtualiza\u00e7\u00e3o e implementa\u00e7\u00e3o de infraestrutura em nuvem. Iremos listar algumas caracter\u00edsticas do KVM.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e25a989 elementor-section-boxed elementor-section-height-default elementor-section-height-default mkdf-parallax-row-no mkdf-row-grid-no mkdf-disabled-bg-image-bellow-no\" data-id=\"e25a989\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-29942b3\" data-id=\"29942b3\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-bfe987a elementor-widget elementor-widget-heading\" data-id=\"bfe987a\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h6 class=\"elementor-heading-title elementor-size-default\"><font color=\"#58468c\" face=\"Poppins, sans-serif\"><span style=\"font-size: 28px;font-weight: 300;white-space: normal\">Como funciona o KVM<\/span><\/font><\/h6>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-ece3f72 elementor-section-boxed elementor-section-height-default elementor-section-height-default mkdf-parallax-row-no mkdf-row-grid-no mkdf-disabled-bg-image-bellow-no\" data-id=\"ece3f72\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-e76e07c\" data-id=\"e76e07c\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4a7655f elementor-widget elementor-widget-text-editor\" data-id=\"4a7655f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>O KVM possibilita que as VMs acessem recursos f\u00edsicos do servidor diretamente, por exemplo, BIOS virtual, processador, armazenamento local, mem\u00f3ria, rede, etc. Sendo assim as VM simulam seu funcionamento como uma m\u00e1quina f\u00edsica. O KVM \u00e9 um m\u00f3dulo de kernel Linux, conectando diretamente com o c\u00f3digo do kernel, as VM s\u00e3o executadas como um processo do Linux, com recursos dedicados a elas. Essa tecnologia est\u00e1 dispon\u00edvel para processadores Intel e AMD, \u00e9 necess\u00e1rio que a extin\u00e7\u00e3o de virtualiza\u00e7\u00e3o esteja ativada.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7329af4 elementor-section-boxed elementor-section-height-default elementor-section-height-default mkdf-parallax-row-no mkdf-row-grid-no mkdf-disabled-bg-image-bellow-no\" data-id=\"7329af4\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3e672ab\" data-id=\"3e672ab\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6788daa elementor-widget elementor-widget-image\" data-id=\"6788daa\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"720\" height=\"493\" src=\"https:\/\/absam.io\/blog\/wp-content\/uploads\/2022\/06\/ebqi0WMoIvy4GmvnSmE5iIVkG8tpXqrPQzryGuNfRwVZo6rYpO63CW4CMVVkBq60Ym3sY919Z6jEeu-nGbEP5jmWda8gyU3-vL7zFgHxwwiUwru5f9tf_eEMk9SnIoFmcXcLaaI3s0-1.webp\" class=\"attachment-large size-large wp-image-13835\" alt=\"\" srcset=\"https:\/\/absam.io\/blog\/wp-content\/uploads\/2022\/06\/ebqi0WMoIvy4GmvnSmE5iIVkG8tpXqrPQzryGuNfRwVZo6rYpO63CW4CMVVkBq60Ym3sY919Z6jEeu-nGbEP5jmWda8gyU3-vL7zFgHxwwiUwru5f9tf_eEMk9SnIoFmcXcLaaI3s0-1.webp 720w, https:\/\/absam.io\/blog\/wp-content\/uploads\/2022\/06\/ebqi0WMoIvy4GmvnSmE5iIVkG8tpXqrPQzryGuNfRwVZo6rYpO63CW4CMVVkBq60Ym3sY919Z6jEeu-nGbEP5jmWda8gyU3-vL7zFgHxwwiUwru5f9tf_eEMk9SnIoFmcXcLaaI3s0-1-300x205.webp 300w\" sizes=\"(max-width: 720px) 100vw, 720px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-d399bc8 elementor-section-boxed elementor-section-height-default elementor-section-height-default mkdf-parallax-row-no mkdf-row-grid-no mkdf-disabled-bg-image-bellow-no\" data-id=\"d399bc8\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-469143a\" data-id=\"469143a\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-45e34f3 elementor-widget elementor-widget-heading\" data-id=\"45e34f3\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><font color=\"#58468c\" face=\"Poppins, sans-serif\" style=\"font-size: 14px;letter-spacing: 0.49000000953674316px\"><span style=\"font-size: 28px;font-weight: 300;white-space: normal\">Benef\u00edcios do KVM<\/span><\/font><\/h2>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-82e4e13 elementor-section-boxed elementor-section-height-default elementor-section-height-default mkdf-parallax-row-no mkdf-row-grid-no mkdf-disabled-bg-image-bellow-no\" data-id=\"82e4e13\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-56ecd88\" data-id=\"56ecd88\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-52ed6a5 elementor-widget elementor-widget-text-editor\" data-id=\"52ed6a5\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>O KVM j\u00e1 faz parte do Linux nativamente, toda sua configura\u00e7\u00e3o j\u00e1 se torna mais simples, esse \u00e9 um dos benef\u00edcios principais. Al\u00e9m disso podemos citar outros pontos importantes que fazem o KVM ser a melhor tecnologia de hypervisor.<\/p><p><strong>Escalabilidade<\/strong>\u00a0&#8211; Como um m\u00f3dulo do kernel Linux, o hipervisor KVM \u00e9 dimensionado automaticamente para responder a cargas pesadas assim que o n\u00famero de VMs aumenta. O hipervisor KVM tamb\u00e9m permite o agrupamento para milhares de n\u00f3s, estabelecendo as bases para a implementa\u00e7\u00e3o da infraestrutura em nuvem.<\/p><p><strong>Desempenho &#8211;\u00a0<\/strong>Uma das principais desvantagens das tecnologias tradicionais de virtualiza\u00e7\u00e3o \u00e9 a degrada\u00e7\u00e3o do desempenho em compara\u00e7\u00e3o com as m\u00e1quinas f\u00edsicas. Como o KVM \u00e9 o hipervisor tipo 1, ele supera todos os hipervisores tipo 2, garantindo um desempenho quase que id\u00eantico a um servidor Bare Metal. Com o hipervisor KVM, as VMs inicializam rapidamente e alcan\u00e7am os resultados de desempenho desejados.<\/p><p><b>Seguran\u00e7a<\/b> &#8211; Como o KVM faz parte do c\u00f3digo-fonte do kernel Linux, ele se beneficia da maior colabora\u00e7\u00e3o da comunidade de c\u00f3digo aberto do mundo, do rigoroso processo de desenvolvimento e teste, bem como patches cont\u00ednuos de seguran\u00e7a.<\/p><p><strong>Lat\u00eancia<\/strong> &#8211; O kernel do Linux apresenta extens\u00f5es em tempo real. Elas permitem que aplica\u00e7\u00f5es baseadas em m\u00e1quinas virtuais sejam executadas a uma lat\u00eancia mais baixa, com prioriza\u00e7\u00e3o melhor (em compara\u00e7\u00e3o com bare-metal). O kernel tamb\u00e9m divide processos que exigem processos de computa\u00e7\u00e3o demorados em componentes menores, que depois s\u00e3o agendados e tratados de acordo.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-9a5bf81 elementor-section-boxed elementor-section-height-default elementor-section-height-default mkdf-parallax-row-no mkdf-row-grid-no mkdf-disabled-bg-image-bellow-no\" data-id=\"9a5bf81\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-78ee493\" data-id=\"78ee493\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-dee338e elementor-widget elementor-widget-text-editor\" data-id=\"dee338e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>O KVM \u00e9 compat\u00edvel com os principais gerenciadores de m\u00e1quinas virtuais existentes, como Proxmox VE e QEMU e OpenStack.<\/p><p>\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-8764c4b elementor-section-boxed elementor-section-height-default elementor-section-height-default mkdf-parallax-row-no mkdf-row-grid-no mkdf-disabled-bg-image-bellow-no\" data-id=\"8764c4b\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-c475b04\" data-id=\"c475b04\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b96acdd elementor-widget elementor-widget-spacer\" data-id=\"b96acdd\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>KVM (Kernel-based Virtual Machine) hoje \u00e9 a principal tecnologia de virtualiza\u00e7\u00e3o de c\u00f3digo aberto no Linux. Ele \u00e9 vem instalado nativamente nas distribui\u00e7\u00f5es Linux e transforma servidores f\u00edsicos subjacentes em hipervisores para que eles possam hospedar v\u00e1rias m\u00e1quinas virtuais (VMs) [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":13839,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[41],"tags":[],"class_list":["post-13818","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-conteudo"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.1 (Yoast SEO v27.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Kernel-based Virtual Machine (KVM) - Por tr\u00e1s da tecnologia - Blog da Absam<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/absam.io\/blog\/kvm\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Kernel-based Virtual Machine (KVM) - Por tr\u00e1s da tecnologia\" \/>\n<meta property=\"og:description\" content=\"KVM (Kernel-based Virtual Machine) hoje \u00e9 a principal tecnologia de virtualiza\u00e7\u00e3o de c\u00f3digo aberto no Linux. Ele \u00e9 vem instalado nativamente nas distribui\u00e7\u00f5es Linux e transforma servidores f\u00edsicos subjacentes em hipervisores para que eles possam hospedar v\u00e1rias m\u00e1quinas virtuais (VMs) [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/absam.io\/blog\/kvm\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog da Absam\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/absam.io\" \/>\n<meta property=\"article:published_time\" content=\"2022-06-08T17:34:55+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/absam.io\/blog\/wp-content\/uploads\/2022\/06\/kvm1-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1201\" \/>\n\t<meta property=\"og:image:height\" content=\"626\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Rafael Borges\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Rafael Borges\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. tempo de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/absam.io\/blog\/kvm\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/absam.io\/blog\/kvm\/\"},\"author\":{\"name\":\"Rafael Borges\",\"@id\":\"https:\/\/absam.io\/blog\/#\/schema\/person\/1c6579a4e95a6f7cd61411d2f8d91562\"},\"headline\":\"Kernel-based Virtual Machine (KVM) &#8211; 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