Linus Torvalds aprovou a inclus\u00e3o do sistema de arquivos Bcachefs no n\u00facleo principal do Linux e adicionou a implementa\u00e7\u00e3o do Bcachefs ao reposit\u00f3rio onde a ramifica\u00e7\u00e3o do n\u00facleo 6.7 est\u00e1 sendo desenvolvida, cujo lan\u00e7amento est\u00e1 previsto para o in\u00edcio de janeiro. O patch adicionado ao n\u00facleo inclui cerca de 95 mil linhas de c\u00f3digo. O projeto tem sido desenvolvido por Kent Overstreet por mais de 10 anos, que tamb\u00e9m criou o sistema de cache de dispositivos de bloco Bcache, que faz parte do n\u00facleo. <\/p>\n
As tentativas de promover o Bcachefs ao n\u00facleo principal come\u00e7aram em 2020, ap\u00f3s o que foi necess\u00e1rio quase tr\u00eas anos para corrigir as observa\u00e7\u00f5es e imperfei\u00e7\u00f5es detectadas ap\u00f3s a revis\u00e3o. Na primavera deste ano, um conjunto atualizado de patches foi proposto, que foi rejeitado v\u00e1rias vezes, mas, finalmente, em setembro, foi aceito na ramifica\u00e7\u00e3o linux-next, destinada a testar as poss\u00edveis funcionalidades para futuras vers\u00f5es do n\u00facleo Linux. <\/p>\n
O Bcachefs est\u00e1 se desenvolvendo com base em tecnologias j\u00e1 testadas na cria\u00e7\u00e3o do dispositivo de bloco Bcache, projetado para cache de acesso a discos r\u00edgidos lentos em unidades SSD r\u00e1pidas (inclu\u00eddo no n\u00facleo a partir da vers\u00e3o 3.10). O Bcachefs usa um mecanismo de Copy-on-Write (COW), onde as altera\u00e7\u00f5es n\u00e3o resultam na reescrita de dados \u2014 o novo estado \u00e9 gravado em um novo local, ap\u00f3s o que o ponteiro do estado atual \u00e9 alterado. <\/p>\n
No Bcachefs, foi feita uma tentativa de alcan\u00e7ar uma combina\u00e7\u00e3o de desempenho, confiabilidade e escalabilidade t\u00edpica do XFS, e funcionalidade avan\u00e7ada presente no Btrfs e ZFS, como a inclus\u00e3o de m\u00faltiplos dispositivos em uma parti\u00e7\u00e3o, layouts de armazenamento em camadas, replica\u00e7\u00e3o (RAID 1\/10), cache, compress\u00e3o de dados transparente (modos LZ4, gzip e ZSTD), fatias de estado (snapshots), verifica\u00e7\u00e3o de integridade por checksums, capacidade de armazenar c\u00f3digos de corre\u00e7\u00e3o de erros de Reed-Solomon (RAID 5\/6), e armazenamento de informa\u00e7\u00f5es de forma criptografada (utilizando ChaCha20 e Poly1305). Em termos de desempenho, o Bcachefs supera o Btrfs e outros sistemas de arquivos baseados em Copy-on-Write, demonstrando uma velocidade de opera\u00e7\u00e3o pr\u00f3xima a Ext4 e XFS. <\/p>\n
Uma caracter\u00edstica do Bcachefs \u00e9 o suporte ao acoplamento em camadas de dispositivos de armazenamento, onde o armazenamento \u00e9 composto por v\u00e1rias camadas \u2014 a camada inferior \u00e9 conectada aos dispositivos mais r\u00e1pidos (SSD), que s\u00e3o usados para cache de dados frequentemente acessados, enquanto a camada superior \u00e9 composta por discos mais altos e baratos, que armazenam dados menos acessados. O cache pode ser aplicado entre as camadas no modo de grava\u00e7\u00e3o adiada (writeback). Os dispositivos podem ser adicionados e desconectados dinamicamente da parti\u00e7\u00e3o sem interromper o uso do sistema de arquivos (os dados migram automaticamente). \u041b\u0438\u043d\u0443\u0441 \u0422\u043e\u0440\u0432\u0430\u043b\u044c\u0434\u0441 \u0443\u0442\u0432\u0435\u0440\u0434\u0438\u043b \u0437\u0430\u043f\u0440\u043e\u0441 \u043d\u0430 \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435 \u0444\u0430\u0439\u043b\u043e\u0432\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Bcachefs \u0432 \u043e\u0441\u043d\u043e\u0432\u043d\u043e\u0439 \u0441\u043e\u0441\u0442\u0430\u0432 \u044f\u0434\u0440\u0430 Linux \u0438 \u0434\u043e\u0431\u0430\u0432\u0438\u043b \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044e Bcachefs \u0432 \u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u0439, \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u0432\u0435\u0442\u043a\u0430 \u044f\u0434\u0440\u0430 6.7, \u0440\u0435\u043b\u0438\u0437 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u043e\u0436\u0438\u0434\u0430\u0435\u0442\u0441\u044f \u0432 \u043d\u0430\u0447\u0430\u043b\u0435 \u044f\u043d\u0432\u0430\u0440\u044f. \u0414\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u043d\u044b\u0439 \u0432 \u044f\u0434\u0440\u043e \u043f\u0430\u0442\u0447 \u0432\u043a\u043b\u044e\u0447\u0430\u0435\u0442 \u043e\u043a\u043e\u043b\u043e 95 \u0442\u044b\u0441\u044f\u0447 \u0441\u0442\u0440\u043e\u043a \u043a\u043e\u0434\u0430. \u041f\u0440\u043e\u0435\u043a\u0442 \u0443\u0436\u0435 \u0431\u043e\u043b\u0435\u0435 10 \u043b\u0435\u0442 \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u0442 \u041a\u0435\u043d\u0442 \u041e\u0432\u0435\u0440\u0441\u0442\u0440\u0438\u0442 (Kent Overstreet), \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0442\u0430\u043a\u0436\u0435 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0430\u043b […]<\/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-111215","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":"\ud83e\udd47O c\u00f3digo do Bcachefs foi aceito no n\u00facleo principal do Linux 6.7 | ProHoster","description":"Linus Torvalds aprovou o pedido para inclus\u00e3o do sistema de arquivos Bcachefs no kernel Linux principal e adicionou a implementa\u00e7\u00e3o do Bcachefs ao reposit\u00f3rio que est\u00e1 desenvolvendo a ramifica\u00e7\u00e3o do kernel 6.7, cujo lan\u00e7amento est\u00e1 previsto para o in\u00edcio do pr\u00f3ximo 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\u0437\u0430\u043f\u0440\u043e\u0441 \u043d\u0430 \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435 \u0444\u0430\u0439\u043b\u043e\u0432\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Bcachefs \u0432 \u043e\u0441\u043d\u043e\u0432\u043d\u043e\u0439 \u0441\u043e\u0441\u0442\u0430\u0432 \u044f\u0434\u0440\u0430 Linux \u0438 \u0434\u043e\u0431\u0430\u0432\u0438\u043b \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044e Bcachefs \u0432 \u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u0439, \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u0432\u0435\u0442\u043a\u0430 \u044f\u0434\u0440\u0430 6.7, \u0440\u0435\u043b\u0438\u0437 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u043e\u0436\u0438\u0434\u0430\u0435\u0442\u0441\u044f \u0432 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Fonte: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"