{"id":99458,"date":"2021-03-17T16:22:53","date_gmt":"2021-03-17T14:22:53","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/pervyj-stabilnyj-vypusk-zlib-ng-vysokoproizvoditelnogo-forka-zlib"},"modified":"2021-03-17T16:22:53","modified_gmt":"2021-03-17T14:22:53","slug":"pervyj-stabilnyj-vypusk-zlib-ng-vysokoproizvoditelnogo-forka-zlib","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/news\/pervyj-stabilnyj-vypusk-zlib-ng-vysokoproizvoditelnogo-forka-zlib","title":{"rendered":"Prima versiune stabil\u0103 a zlib-ng, un fork de \u00eenalt\u0103 performan\u021b\u0103 al zlib","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Este disponibil\u0103 versiunea 2.0 a bibliotecii zlib-ng, marcat\u0103 ca prima versiune stabil\u0103 a proiectului (urmat\u0103 de o versiune corectiv\u0103 2.0.1). Zlib-ng este compatibil cu zlib la nivel de API, dar ofer\u0103 optimiz\u0103ri suplimentare, care nu au fost acceptate \u00een depozitul oficial zlib din cauza unei abord\u0103ri conservatoare \u00een adoptarea modific\u0103rilor. De asemenea, este propus un API modernizat, bazat pe zlib, dar modificat pentru a simplifica portarea. Codul proiectului este scris \u00een C \u0219i este distribuit sub licen\u021ba Zlib. <\/p>\n

Testele efectuate pe sisteme x86_64 au ar\u0103tat c\u0103, \u00een timpul opera\u021biunilor de compresie, Zlib-ng este de aproximativ 4 ori mai rapid dec\u00e2t zlib \u0219i de 2,1 ori mai rapid dec\u00e2t gzip. La decomprimare, Zlib-ng este de aproximativ 2,4 ori mai rapid dec\u00e2t zlib \u0219i de 1,8 ori mai rapid dec\u00e2t gzip. Cre\u0219terea semnificativ\u0103 a performan\u021bei compresiei\/decomprim\u0103rii a fost realizat\u0103 \u00een principal prin utilizarea instruc\u021biunilor vectoriale SSE*, AVX2, VSX \u0219i Neon. <\/p>\n

Printre acestea, a fost ad\u0103ugat\u0103 o implementare a algoritmului de calcul al sumelor de control Adler32, optimizat\u0103 cu ajutorul instruc\u021biunilor SSSE3, AVX2, Neon \u0219i VSX, implementarea CRC32-B bazat\u0103 pe PCLMULQDQ \u0219i ACLE, tabele hash \u00eembun\u0103t\u0103\u021bite, implementarea hash-ului Slide bazat\u0103 pe SSE2, AVX2, Neon \u0219i VSX, opera\u021biuni de comparare bazate pe SSE4.2 \u0219i AVX2. De asemenea, au fost incluse modific\u0103ri orientate spre cre\u0219terea performan\u021bei, utilizate \u00een fork-uri de la companiile Intel \u0219i Cloudflare. Procesul de lucru cu buffer-ele a fost optimizat. A fost ad\u0103ugat\u0103 suport pentru sistemele de construire CMake \u0219i NMake. Pentru testare au fost utilizate sisteme de integrare continu\u0103. <\/p>\n

\u00cen plus fa\u021b\u0103 de optimiz\u0103rile din Zlib-ng, au fost incluse patch-uri adunate \u00een pachetele distribu\u021biilor \u0219i a fost cur\u0103\u021bat codul de solu\u021bii de ocolire utilizate \u00een zlib pentru a sus\u021bine compilatoare \u0219i platforme mai vechi, dar care \u00eempiedicau implementarea unor metode mai eficiente (de exemplu, restric\u021biile necesare pentru a sus\u021bine sisteme de 16 bi\u021bi \u0219i compilatoare incompatibile cu ANSI C). A fost realizat\u0103 o munc\u0103 de identificare \u0219i corectare a erorilor detectate de analizatori statici, sisteme de fuzzing \u0219i instrumente pentru identificarea problemelor de lucru cu memoriile (AddressSanitizer \u0219i MemorySanitizer).
\n
Sursa: opennet.ro<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u0440\u0435\u043b\u0438\u0437 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 zlib-ng 2.0 \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043e\u0442\u043c\u0435\u0447\u0435\u043d \u043a\u0430\u043a \u043f\u0435\u0440\u0432\u044b\u0439 \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a \u043f\u0440\u043e\u0435\u043a\u0442\u0430 (\u0441\u043b\u0435\u0434\u043e\u043c \u0443\u0436\u0435 \u0434\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0439 \u0432\u044b\u043f\u0443\u0441\u043a 2.0.1). Zlib-ng \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c \u0441 zlib \u043d\u0430 \u0443\u0440\u043e\u0432\u043d\u0435 API, \u043d\u043e \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0435 \u043e\u043f\u0442\u0438\u043c\u0438\u0437\u0430\u0446\u0438\u0438, \u043d\u0435 \u043f\u0440\u0438\u043d\u044f\u0442\u044b\u0435 \u0432 \u043e\u0444\u0438\u0446\u0438\u0430\u043b\u044c\u043d\u044b\u0439 \u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u0439 zlib \u0438\u0437-\u0437\u0430 \u043a\u043e\u043d\u0441\u0435\u0440\u0432\u0430\u0442\u0438\u0432\u043d\u043e\u0433\u043e \u043f\u043e\u0434\u0445\u043e\u0434\u0430 \u043a \u043f\u0440\u0438\u0451\u043c\u0443 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439. \u0414\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u043e \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d \u043c\u043e\u0434\u0435\u0440\u043d\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0439 API, \u043e\u0441\u043d\u043e\u0432\u0430\u043d\u043d\u044b\u0439 \u043d\u0430 zlib, \u043d\u043e \u0438\u0437\u043c\u0435\u043d\u0451\u043d\u043d\u044b\u0439 \u0434\u043b\u044f \u0443\u043f\u0440\u043e\u0449\u0435\u043d\u0438\u044f \u043f\u043e\u0440\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f. \u041a\u043e\u0434 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 […]<\/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-99458","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\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\udd47Prima versiune stabil\u0103 zlib-ng, un fork performant al zlib | ProHoster","description":"A fost lansat\u0103 versiunea bibliotecii zlib-ng 2.0, care este considerat\u0103 prima versiune stabil\u0103 a proiectului (\u00eentre timp, este disponibil\u0103 deja o versiune corectiv\u0103 2.0.1).","canonical_url":"https:\/\/prohoster.info\/ro\/blog\/news\/pervyj-stabilnyj-vypusk-zlib-ng-vysokoproizvoditelnogo-forka-zlib","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"ro_RO","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u041f\u0435\u0440\u0432\u044b\u0439 \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a zlib-ng, \u0432\u044b\u0441\u043e\u043a\u043e\u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0433\u043e \u0444\u043e\u0440\u043a\u0430 zlib | ProHoster","og:description":"\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u0440\u0435\u043b\u0438\u0437 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 zlib-ng 2.0 \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043e\u0442\u043c\u0435\u0447\u0435\u043d \u043a\u0430\u043a \u043f\u0435\u0440\u0432\u044b\u0439 \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a \u043f\u0440\u043e\u0435\u043a\u0442\u0430 (\u0441\u043b\u0435\u0434\u043e\u043c \u0443\u0436\u0435 \u0434\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0439 \u0432\u044b\u043f\u0443\u0441\u043a 2.0.1).","og:url":"https:\/\/prohoster.info\/ro\/blog\/news\/pervyj-stabilnyj-vypusk-zlib-ng-vysokoproizvoditelnogo-forka-zlib","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2021-03-17T14:22:53+00:00","article:modified_time":"2021-03-17T14:22:53+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"99458","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":null,"schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"seo_analyzer_scan_date":null,"breadcrumb_settings":null,"limit_modified_date":false,"reviewed_by":null,"ai":null,"created":"2021-03-17 14:25:33","updated":"2022-10-07 21:08:41","focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/ro\/wp-json\/wp\/v2\/posts\/99458","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/ro\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/ro\/wp-json\/wp\/v2\/comments?post=99458"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/ro\/wp-json\/wp\/v2\/posts\/99458\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/ro\/wp-json\/wp\/v2\/media?parent=99458"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/ro\/wp-json\/wp\/v2\/categories?post=99458"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/ro\/wp-json\/wp\/v2\/tags?post=99458"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}