{"id":162998,"date":"2026-03-02T23:12:02","date_gmt":"2026-03-02T21:12:03","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/zxc-0-8-0-i-0-8-1"},"modified":"2026-03-02T23:12:02","modified_gmt":"2026-03-02T21:12:03","slug":"zxc-0-8-0-i-0-8-1","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/zxc-0-8-0-i-0-8-1","title":{"rendered":"ZXC 0.8.0 a 0.8.1","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><a rel=\"nofollow\" href=\"https:\/\/www.linux.org.ru\/images\/23078\/original.png\">           <img decoding=\"async\" alt=\"ZXC 0.8.0 a 0.8.1\" src=\"\/wp-content\/uploads\/2026\/03\/a0dca47673a44e32c43c0c25b013fcb0.jpg\" style=\"display:block;margin: 0 auto;\" \/>         <\/a>                <a rel=\"nofollow\" href=\"https:\/\/www.linux.org.ru\/images\/23079\/original.png\">           <img decoding=\"async\" alt=\"ZXC 0.8.0 a 0.8.1\" src=\"\/wp-content\/uploads\/2026\/03\/2b633309bc0dae8e51953a97fbe26e74.jpg\" style=\"display:block;margin: 0 auto;\" \/>         <\/a>                                              <noindex>          <a rel=\"nofollow\" href=\"https:\/\/www.linux.org.ru\/images\/23078\/original.png\" class=\"active\"><\/a><\/noindex>                                                      <a rel=\"nofollow\" href=\"https:\/\/www.linux.org.ru\/images\/23079\/original.png\"><\/a>                                     <noindex><\/p>\n<p>Byla vyd\u00e1na verze 0.8.0 knihovny a multiplatformn\u00ed konzolov\u00e9 utility <a rel=\"nofollow\" href=\"https:\/\/github.com\/hellobertrand\/zxc\">ZXC (github.com)<\/a>, kter\u00e1 implementuje vysoce v\u00fdkonn\u00e9 v\u00edcestup\u0148ov\u00e9 <a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Data_compression_symmetry\">asymetrick\u00e9 komprese<\/a> bez ztr\u00e1t a optimalizov\u00e1no pro hern\u00ed zdroje, firmwary a bal\u00ed\u010dky aplikac\u00ed.<\/p>\n<p><\/noindex> <\/p>\n<p>Vyhla\u0161uje se o 40 % rychlej\u0161\u00ed dekomprese ne\u017e LZ4 na ARM64, s lep\u0161\u00edmi kompresn\u00edmi pom\u011bry.<\/p>\n<p>Projekt je naps\u00e1n v jazyce C a je distribuov\u00e1n pod licenc\u00ed BSD 3.<\/p>\n<p>Seznam zm\u011bn:<\/p>\n<ul>\n<li>Verze form\u00e1tu je nyn\u00ed 5, \u201enaru\u0161uj\u00edc\u00ed\u201c kompatibilita:\n<ul>\n<li>Bylo implementov\u00e1no LZ (+1) posunut\u00ed na \u00farovni form\u00e1tu pro odstran\u011bn\u00ed potenci\u00e1ln\u00edch vektor\u016f \u00fatoku s nulov\u00fdm posunem.<\/li>\n<li>Kontroln\u00ed sou\u010dty hlavi\u010dek nyn\u00ed pou\u017e\u00edvaj\u00ed algoritmus Marsaglia xorshift.<\/li>\n<\/ul>\n<\/li>\n<li>Nov\u00e1 LZ77 hashovac\u00ed strategie a optimalizace konfigurace hash tabulek p\u0159in\u00e1\u0161ej\u00ed v\u00fdznamn\u00e9 zv\u00fd\u0161en\u00ed v\u00fdkonu na r\u016fzn\u00fdch architektur\u00e1ch, zejm\u00e9na p\u0159i vysok\u00fdch \u00farovn\u00edch komprese.<\/li>\n<li>V\u00fdznamn\u00e1 zlep\u0161en\u00ed pro \u00farovn\u011b komprese 3\u20135, kter\u00e9 demonstruj\u00ed zv\u00fd\u0161en\u00ed rychlosti komprese o 33\u201343 % na architektur\u00e1ch x86_64 i ARM64.<\/li>\n<li>Zna\u010dn\u00e1 vylep\u0161en\u00ed pro rychlej\u0161\u00ed \u00farovn\u011b komprese (1 a 2), se zv\u00fd\u0161en\u00edm rychlosti o 10-18 % na x86_64 a ~8-10 % na ARM64.<\/li>\n<li>Byla p\u0159epracov\u00e1na zpracov\u00e1n\u00ed a chybov\u00e9 k\u00f3dy. Python wrapper nyn\u00ed poskytuje p\u0159\u00edstup k t\u011bmto chybov\u00fdm konstant\u00e1m C pro zaji\u0161t\u011bn\u00ed vylep\u0161en\u00e9ho a nativn\u00edho hl\u00e1\u0161en\u00ed o chyb\u00e1ch.<\/li>\n<li>Velikost ZXC_BLOCK_SIZE ji\u017e nen\u00ed omezena na 1 MB. Form\u00e1t souboru ZXC nyn\u00ed ofici\u00e1ln\u011b podporuje velikosti blok\u016f a\u017e 8 MB.<\/li>\n<li>Do konzolov\u00e9ho n\u00e1stroje byla p\u0159id\u00e1na funkce zpracov\u00e1n\u00ed v\u00edce soubor\u016f: volba -m (nebo --multiple) umo\u017e\u0148uje zpracov\u00e1vat n\u011bkolik vstupn\u00edch soubor\u016f jedn\u00edm p\u0159\u00edkazem. Ka\u017ed\u00fd soubor se zpracov\u00e1v\u00e1 nez\u00e1visle, a jm\u00e9na v\u00fdstupn\u00edch soubor\u016f se automaticky generuj\u00ed na z\u00e1klad\u011b vstupn\u00edch (nap\u0159\u00edklad soubor file.txt se zmen\u0161\u00ed na file.txt.xc, soubor file.txt.xc se rozbal\u00ed do file.txt).<\/li>\n<li>Do konzolov\u00e9ho n\u00e1stroje byla tak\u00e9 p\u0159id\u00e1na funkce rekurzivn\u00edho zpracov\u00e1n\u00ed adres\u00e1\u0159\u016f: volba -r (nebo --recursive) umo\u017e\u0148uje zpracov\u00e1vat v\u0161echny soubory ve zvolen\u00fdch adres\u00e1\u0159\u00edch a jejich podslo\u017ek\u00e1ch.<\/li>\n<li>Dal\u0161\u00ed vylep\u0161en\u00ed (dokumentace, testov\u00e1n\u00ed) a opravy chyb.<\/li>\n<li>Ve verzi 0.8.1 byla opraven\u00e1 pouze generace dynamick\u00e9 knihovny libzxc.so.1, aby byla zachov\u00e1na mo\u017enost pou\u017e\u00edv\u00e1n\u00ed p\u0159edchoz\u00edch verz\u00ed knihovny.<\/li>\n<\/ul>\n<p>Zdroj: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.linux.org.ru\/news\/opensource\/18233399\">linux.org.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 0.8.0 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 \u0438 \u043a\u0440\u043e\u0441\u0441\u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u0435\u043d\u043d\u043e\u0439 \u043a\u043e\u043d\u0441\u043e\u043b\u044c\u043d\u043e\u0439 \u0443\u0442\u0438\u043b\u0438\u0442\u044b ZXC (github.com), \u0440\u0435\u0430\u043b\u0438\u0437\u0443\u044e\u0449\u0438\u0445 \u0432\u044b\u0441\u043e\u043a\u043e\u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0435 \u043c\u043d\u043e\u0433\u043e\u043f\u043e\u0442\u043e\u0447\u043d\u043e\u0435 \u0430\u0441\u0438\u043c\u043c\u0435\u0442\u0440\u0438\u0447\u043d\u043e\u0435 \u0441\u0436\u0430\u0442\u0438\u0435 \u0431\u0435\u0437 \u043f\u043e\u0442\u0435\u0440\u044c \u0438 \u043e\u043f\u0442\u0438\u043c\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0435 \u0434\u043b\u044f \u0438\u0433\u0440\u043e\u0432\u044b\u0445 \u0440\u0435\u0441\u0443\u0440\u0441\u043e\u0432, \u043f\u0440\u043e\u0448\u0438\u0432\u043e\u043a \u0438 \u043f\u0430\u043a\u0435\u0442\u043e\u0432 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439. \u0414\u0435\u043a\u043b\u0430\u0440\u0438\u0440\u0443\u0435\u0442\u0441\u044f \u043d\u0430 40%+ \u0431\u043e\u043b\u0435\u0435 \u0431\u044b\u0441\u0442\u0440\u0430\u044f \u0440\u0430\u0441\u043f\u0430\u043a\u043e\u0432\u043a\u0430, \u0447\u0435\u043c LZ4 \u043d\u0430 ARM64, \u0441 \u043b\u0443\u0447\u0448\u0438\u043c\u0438 \u043a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442\u0430\u043c\u0438 \u0441\u0436\u0430\u0442\u0438\u044f. \u041f\u0440\u043e\u0435\u043a\u0442 \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 C \u0438 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0438 BSD 3. \u0421\u043f\u0438\u0441\u043e\u043a \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439: \u0412\u0435\u0440\u0441\u0438\u044f \u0444\u043e\u0440\u043c\u0430\u0442\u0430 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":8,"featured_media":162999,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-162998","post","type-post","status-publish","format-standard","has-post-thumbnail","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=\".\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Erik 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