{"id":85708,"date":"2020-06-18T13:43:05","date_gmt":"2020-06-18T11:43:05","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/monolinux-odnofajlovyj-distributiv-zagruzhayushhijsya-na-cpu-armv7-528-mhz-za-0-37-sekund"},"modified":"2020-06-18T13:43:05","modified_gmt":"2020-06-18T11:43:05","slug":"monolinux-odnofajlovyj-distributiv-zagruzhayushhijsya-na-cpu-armv7-528-mhz-za-0-37-sekund","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/monolinux-odnofajlovyj-distributiv-zagruzhayushhijsya-na-cpu-armv7-528-mhz-za-0-37-sekund","title":{"rendered":"Monolinux — uma distribui\u00e7\u00e3o de arquivo \u00fanico, que inicia em uma CPU ARMv7 528 MHz em 0,37 segundos","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Erik Moqvist, autor da plataforma Simba<\/a><\/noindex> e ferramentas cantools<\/a><\/noindex>, est\u00e1 desenvolvendo uma nova distribui\u00e7\u00e3o Monolinux<\/a><\/noindex>, voltada para a cria\u00e7\u00e3o de sistemas Linux embarcados para a execu\u00e7\u00e3o isolada de aplica\u00e7\u00f5es espec\u00edficas escritas em C. A distribui\u00e7\u00e3o se destaca por reunir todos os componentes necess\u00e1rios para o funcionamento do aplicativo em um \u00fanico arquivo execut\u00e1vel est\u00e1ticamente compilado (basicamente, a distribui\u00e7\u00e3o consiste no n\u00facleo do Linux e em um ram-disk com um processo init est\u00e1ticamente compilado, incluindo o aplicativo e as bibliotecas necess\u00e1rias). O c\u00f3digo \u00e9 distribu\u00eddo<\/a><\/noindex> sob a licen\u00e7a MIT.<\/p>\n

No ambiente, todos os subsistemas e chamadas de sistema do n\u00facleo do Linux s\u00e3o fornecidos, incluindo acesso a FS, pilha de rede e drivers de dispositivos. Para intera\u00e7\u00e3o com o aplicativo, est\u00e3o dispon\u00edveis bibliotecas como ml<\/a><\/noindex> (biblioteca C do Monolinux com shell, clientes DHCP e NTP, Device-mapper, etc.), ass\u00edncrono<\/a><\/noindex> (framework ass\u00edncrono), bitstream<\/a><\/noindex>, curl<\/a><\/noindex> (HTTP, FTP, \u2026), detools<\/a><\/noindex> (patches delta), heatshrink<\/a><\/noindex> (algoritmo de compress\u00e3o), humanfriendly<\/a><\/noindex> (ferramentas auxiliares), mbedTLS<\/a><\/noindex>, xz<\/a><\/noindex> e zlib<\/a><\/noindex>. Um ciclo de desenvolvimento r\u00e1pido \u00e9 suportado, permitindo avaliar uma nova vers\u00e3o em quest\u00e3o de segundos ap\u00f3s modifica\u00e7\u00f5es no c\u00f3digo. <\/p>\n

As vers\u00f5es do Monolinux foram preparadas para as placas Raspberry Pi 3<\/a><\/noindex> e Jiffy<\/a><\/noindex>. O tamanho final das compila\u00e7\u00f5es \u00e9 de cerca de 800 KB. A placa Jiffy<\/a><\/noindex> equipado com SoC i.MX6UL com CPU ARMv7-A (528 MHz), 1 GB de RAM DDR3 e 4 GB de eMMC. O tempo de boot na placa Jiffy \u00e9 de apenas 0,37 segundos \u2014 do momento em que \u00e9 ligado at\u00e9 a prontid\u00e3o do sistema de arquivos Ext4. Desse tempo, 1 ms \u00e9 dedicado \u00e0 inicializa\u00e7\u00e3o do hardware da SoC, 184 ms para executar o c\u00f3digo da ROM, 86 ms para o funcionamento do carregador de inicializa\u00e7\u00e3o, 62 ms para iniciar o n\u00facleo Linux e 40 ms para ativar o Ext4. O tempo de reinicializa\u00e7\u00e3o \u00e9 de 0,26 segundos. No caso de uso do stack de rede, devido a atrasos na negocia\u00e7\u00e3o do canal Ethernet e na obten\u00e7\u00e3o de par\u00e2metros de rede, o sistema fica pronto para intera\u00e7\u00e3o de rede em 2,2 segundos. <\/p>\n

O sistema utiliza o n\u00facleo Linux 4.14.78 em configura\u00e7\u00e3o m\u00ednima com patches adicionais , eliminando atrasos desnecess\u00e1rios no driver MMC (MMC \u00e9 ativado pela firmware da placa e, no momento de ativa\u00e7\u00e3o do driver, j\u00e1 est\u00e1 ativo) e que iniciam a inicializa\u00e7\u00e3o dos drivers MMC e FEC (Ethernet) em modo paralelo.<\/a><\/noindex>Erik Moqvist, autor da plataforma Simba e ferramentas<\/p>\n

<\/a><\/noindex><\/p>\n

Fonte: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u042d\u0440\u0438\u043a \u041c\u043e\u043a\u0432\u0438\u0441\u0442 (Erik Moqvist), \u0430\u0432\u0442\u043e\u0440 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b Simba \u0438 \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u044f cantools, \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u0442 \u043d\u043e\u0432\u044b\u0439 \u0434\u0438\u0441\u0442\u0440\u0438\u0431\u0443\u0442\u0438\u0432 Monolinux, \u043e\u0440\u0438\u0435\u043d\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0439 \u043d\u0430 \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u0435 \u0432\u0441\u0442\u0440\u0430\u0438\u0432\u0430\u0435\u043c\u044b\u0445 Linux-\u0441\u0438\u0441\u0442\u0435\u043c \u0434\u043b\u044f \u043e\u0431\u043e\u0441\u043e\u0431\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u0437\u0430\u043f\u0443\u0441\u043a\u0430 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0451\u043d\u043d\u044b\u0445 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439, \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u043d\u044b\u0445 \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 \u0421\u0438. \u0414\u0438\u0441\u0442\u0440\u0438\u0431\u0443\u0442\u0438\u0432 \u043f\u0440\u0438\u043c\u0435\u0447\u0430\u0442\u0435\u043b\u0435\u043d \u0442\u0435\u043c, \u0447\u0442\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u0430\u044f \u043d\u0430\u0447\u0438\u043d\u043a\u0430 \u043e\u0444\u043e\u0440\u043c\u043b\u044f\u0435\u0442\u0441\u044f \u0432 \u0432\u0438\u0434\u0435 \u043e\u0434\u043d\u043e\u0433\u043e \u0441\u0442\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0438 \u0441\u043a\u043e\u043c\u043f\u043e\u043d\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e \u0438\u0441\u043f\u043e\u043b\u043d\u044f\u0435\u043c\u043e\u0433\u043e \u0444\u0430\u0439\u043b\u0430, \u0432\u043a\u043b\u044e\u0447\u0430\u044e\u0449\u0435\u0433\u043e \u0432\u0441\u0435 \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u044b, \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u044b\u0435 \u0434\u043b\u044f \u0440\u0430\u0431\u043e\u0442\u044b \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f (\u043f\u043e \u0441\u0443\u0442\u0438 \u0434\u0438\u0441\u0442\u0440\u0438\u0431\u0443\u0442\u0438\u0432 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u044f\u0434\u0440\u043e Linux […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-85708","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"Erik Moqvist, autor da plataforma Simba e do conjunto de 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