{"id":122017,"date":"2025-02-20T14:22:23","date_gmt":"2025-02-20T12:22:23","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/zstandard-1-5-7"},"modified":"2025-02-20T14:22:23","modified_gmt":"2025-02-20T12:22:23","slug":"zstandard-1-5-7","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/zstandard-1-5-7","title":{"rendered":"Zstandard 1.5.7","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Po 11 m\u011bs\u00edc\u00edch v\u00fdvoje a v\u00edce ne\u017e 500 commitech byl vyd\u00e1n 1.5.7 rychl\u00e9 knihovny pro kompresi dat a konzolov\u00e9 utility Zstandard, napsan\u00e9 v jazyce C a distribuovan\u00e9 pod licencemi BSD a GNU GPL 2.<\/p>\n<p>Jedn\u00e1 se o v\u00fdznamn\u00e9 vyd\u00e1n\u00ed s vylep\u0161en\u00edmi v oblasti v\u00fdkonu, stability a funk\u010dnosti, a je zvl\u00e1\u0161\u0165 doporu\u010deno pro u\u017eivatele 32bitov\u00fdch syst\u00e9m\u016f.<\/p>\n<p>Hlavn\u00ed zm\u011bny:<\/p>\n<ul>\n<li>Byl vy\u0159e\u0161en dlouhotrvaj\u00edc\u00ed a velmi vz\u00e1cn\u00fd probl\u00e9m s kompres\u00ed v 32bitov\u00e9m re\u017eimu, kter\u00fd se mohl objevit b\u011bhem dlouh\u00fdch relac\u00ed (stejn\u00fd ZSTD_CCtx* neust\u00e1le znovu pou\u017e\u00edvan\u00fd).<\/li>\n<li>V\u00fdznamn\u00e9 zv\u00fd\u0161en\u00ed rychlosti komprese (a\u017e o +30%) pro mal\u00e9 datov\u00e9 soubory.<\/li>\n<li>Zlep\u0161ena rychlost komprese (~+5%) se slovn\u00edkem p\u0159i n\u00edzk\u00fdch \u00farovn\u00edch komprese.<\/li>\n<li>Rychlej\u0161\u00ed pr\u00e1ce t\u00fdmu \u2014patch-from p\u0159i vysok\u00fdch \u00farovn\u00edch komprese s vylep\u0161en\u00edm koeficientu komprese.<\/li>\n<li>Zlep\u0161en kompresn\u00ed pom\u011br na v\u0161ech \u00farovn\u00edch d\u00edky lep\u0161\u00edmu ur\u010den\u00ed hranic blok\u016f.<\/li>\n<li>Detekce instrukce CPU bmi2 b\u011bhem b\u011bhu nyn\u00ed funguje i v 32bitov\u00e9m re\u017eimu x86.<\/li>\n<li>Pou\u017e\u00edv\u00e1n\u00ed v\u00edcerozm\u011brnosti v konzolov\u00e9 utilit\u011b je nyn\u00ed v\u00fdchoz\u00ed.<\/li>\n<li>Do konzolov\u00e9 utility byla p\u0159id\u00e1na nov\u00e1 p\u0159\u00edkaz \u2014max, kter\u00e1 se sna\u017e\u00ed zajistit nejlep\u0161\u00ed mo\u017en\u00fd koeficient komprese t\u00edm, \u017ee v\u0161echny parametry nastav\u00ed na maxim\u00e1ln\u00ed hodnotu.<\/li>\n<li>Do API byla p\u0159id\u00e1na nov\u00e1 metoda ZSTD_compressSequencesAndLiterals().<\/li>\n<li>Funkce ZSTD_getFrameHeader() nyn\u00ed funguje i na p\u0159esko\u010den\u00fdch r\u00e1mc\u00edch.<\/li>\n<li>Byla provedena dal\u0161\u00ed vylep\u0161en\u00ed a opravy chyb.<\/li>\n<\/ul>\n<p>Zdroj: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.linux.org.ru\/news\/opensource\/17890558\">linux.org.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0441\u043b\u0435 11 \u043c\u0435\u0441\u044f\u0446\u0435\u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0438 \u0441\u0432\u044b\u0448\u0435 500 \u043a\u043e\u043c\u043c\u0438\u0442\u043e\u0432 \u0441\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0432\u044b\u043f\u0443\u0441\u043a 1.5.7 \u0431\u044b\u0441\u0442\u0440\u043e\u0439 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 \u0441\u0436\u0430\u0442\u0438\u044f \u0434\u0430\u043d\u043d\u044b\u0445 \u0438 \u043a\u043e\u043d\u0441\u043e\u043b\u044c\u043d\u043e\u0439 \u0443\u0442\u0438\u043b\u0438\u0442\u044b Zstandard, \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u043d\u044b\u0445 \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 C \u0438 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u043c\u044b\u0445 \u043f\u043e \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u044f\u043c BSD \u0438 GNU GPL 2. \u042d\u0442\u043e \u0437\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a \u0441 \u0443\u043b\u0443\u0447\u0448\u0435\u043d\u0438\u044f\u043c\u0438 \u0432 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438, \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u0438 \u0444\u0443\u043d\u043a\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u0438, \u0438 \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0443\u0435\u0442\u0441\u044f \u0434\u043b\u044f \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439 32-\u0431\u0438\u0442\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c. \u041e\u0441\u043d\u043e\u0432\u043d\u044b\u0435 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f: \u0420\u0435\u0448\u0435\u043d\u0430 \u0434\u0430\u0432\u043d\u044f\u044f \u0438 \u043e\u0447\u0435\u043d\u044c [&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-122017","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.5 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u043e\u0441\u043b\u0435 11 \u043c\u0435\u0441\u044f\u0446\u0435\u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0438 \u0441\u0432\u044b\u0448\u0435 500 \u043a\u043e\u043c\u043c\u0438\u0442\u043e\u0432 \u0441\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0432\u044b\u043f\u0443\u0441\u043a 1.5.7 \u0431\u044b\u0441\u0442\u0440\u043e\u0439 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 \u0441\u0436\u0430\u0442\u0438\u044f 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