{"id":101816,"date":"2021-10-27T16:23:23","date_gmt":"2021-10-27T14:23:23","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-crabz-0-7-utility-dlya-mnogopotochnogo-szhatiya-i-raspakovki-napisannoj-na-rust"},"modified":"2021-10-27T16:23:23","modified_gmt":"2021-10-27T14:23:23","slug":"vypusk-crabz-0-7-utility-dlya-mnogopotochnogo-szhatiya-i-raspakovki-napisannoj-na-rust","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/vypusk-crabz-0-7-utility-dlya-mnogopotochnogo-szhatiya-i-raspakovki-napisannoj-na-rust","title":{"rendered":"Lan\u00e7amento do crabz 0.7, uma ferramenta para compress\u00e3o e descompress\u00e3o multithread, escrita em Rust","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Foi lan\u00e7ado o utilit\u00e1rio crabz, que implementa compress\u00e3o e descompress\u00e3o de dados em m\u00faltiplas threads, semelhante ao utilit\u00e1rio pigz. Ambos esses utilit\u00e1rios s\u00e3o vers\u00f5es com m\u00faltiplas threads do programa gzip, otimizados para funcionar em sistemas multicore. O crabz se destaca por ser escrito na linguagem de programa\u00e7\u00e3o Rust, ao contr\u00e1rio do pigz, que \u00e9 escrito em C (e, parcialmente, em C++), e demonstra um ganho de desempenho significativo, alcan\u00e7ando em alguns casos at\u00e9 50%.    <\/p>\n<p>Na p\u00e1gina dos desenvolvedores, h\u00e1 uma compara\u00e7\u00e3o detalhada da velocidade de ambos os utilit\u00e1rios com v\u00e1rias chaves e backends utilizados. As medi\u00e7\u00f5es foram realizadas em um arquivo csv de 1,5 gigabytes, usando uma m\u00e1quina com processador AMD Ryzen 9 3950X de 16 n\u00facleos e 64 GB de RAM DDR4, rodando o sistema operacional Ubuntu 20. Para aqueles que n\u00e3o querem se aprofundar na an\u00e1lise de desempenho, um relat\u00f3rio resumido foi preparado:  <\/p>\n<ul>\n<li class=\"l\"> o crabz usando o backend zlib \u00e9 id\u00eantico ao pigz em termos de desempenho;\n<li class=\"l\"> usando o backend zlib-ng \u00e9 at\u00e9 uma vez e meia mais r\u00e1pido do que o pigz;\n<li class=\"l\"> o crabz com o backend rust \u00e9 ligeiramente (5-10%) mais r\u00e1pido que o pigz.  <\/ul>\n<p>Segundo os desenvolvedores, al\u00e9m da maior velocidade, o crabz, em compara\u00e7\u00e3o com o pigz, tamb\u00e9m possui as seguintes vantagens:  <\/p>\n<ul>\n<li class=\"l\"> o crabz com o backend deflate_rust utiliza c\u00f3digo totalmente escrito em Rust, o que \u00e9 mais seguro;\n<li class=\"l\"> o crabz \u00e9 multiplataforma e suporta Windows, o que pode atrair mais usu\u00e1rios;\n<li class=\"l\"> o crabz suporta mais formatos (Gzip, Zlib, Mgzip, BGZF, Raw Deflate e Snap).  <\/ul>\n<p>Apesar de estar completamente funcional, o crabz \u00e9 caracterizado pelo desenvolvedor como um prot\u00f3tipo conceitual de uma ferramenta CLI, utilizando o pacote crate GZP.<br \/>\n<br \/>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=56051\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0421\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0432\u044b\u043f\u0443\u0441\u043a \u0443\u0442\u0438\u043b\u0438\u0442\u044b crabz, \u0440\u0435\u0430\u043b\u0438\u0437\u0443\u044e\u0449\u0435\u0439 \u043c\u043d\u043e\u0433\u043e\u043f\u043e\u0442\u043e\u0447\u043d\u043e\u0435 \u0441\u0436\u0430\u0442\u0438\u0435 \u0438 \u0440\u0430\u0441\u043f\u0430\u043a\u043e\u0432\u043a\u0443 \u0434\u0430\u043d\u043d\u044b\u0445, \u0430\u043d\u0430\u043b\u043e\u0433\u0438\u0447\u043d\u043e \u043f\u043e\u0434\u043e\u0431\u043d\u043e\u0439 \u0443\u0442\u0438\u043b\u0438\u0442\u0435 pigz. \u041e\u0431\u0435 \u044d\u0442\u0438 \u0443\u0442\u0438\u043b\u0438\u0442\u044b \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0442 \u0441\u043e\u0431\u043e\u0439 \u043c\u043d\u043e\u0433\u043e\u043f\u043e\u0442\u043e\u0447\u043d\u044b\u0435 \u0432\u0430\u0440\u0438\u0430\u043d\u0442\u044b \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u044b gzip, \u043e\u043f\u0442\u0438\u043c\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0435 \u0434\u043b\u044f \u0440\u0430\u0431\u043e\u0442\u044b \u043d\u0430 \u043c\u043d\u043e\u0433\u043e\u044f\u0434\u0435\u0440\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445. \u0421\u0430\u043c \u0436\u0435 crabz \u043e\u0442\u043b\u0438\u0447\u0430\u0435\u0442\u0441\u044f \u0442\u0435\u043c, \u0447\u0442\u043e \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f Rust, \u0432 \u043e\u0442\u043b\u0438\u0447\u0438\u0438 \u043e\u0442 \u0443\u0442\u0438\u043b\u0438\u0442\u044b pigz, \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u043d\u043e\u0439 \u043d\u0430 C (\u0438, \u0447\u0430\u0441\u0442\u0438\u0447\u043d\u043e, \u043d\u0430 C++), \u0438 \u0434\u0435\u043c\u043e\u043d\u0441\u0442\u0440\u0438\u0440\u0443\u0435\u0442 \u0437\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0439 [&hellip;]<\/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-101816","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0421\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f 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