{"id":93424,"date":"2020-09-07T07:42:06","date_gmt":"2020-09-07T05:42:06","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/proekt-gentoo-predstavil-sistemu-upravleniya-paketami-portage-3-0"},"modified":"2020-09-07T07:42:06","modified_gmt":"2020-09-07T05:42:06","slug":"proekt-gentoo-predstavil-sistemu-upravleniya-paketami-portage-3-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/proekt-gentoo-predstavil-sistemu-upravleniya-paketami-portage-3-0","title":{"rendered":"Projekt Gentoo p\u0159edstavil syst\u00e9m spr\u00e1vy bal\u00ed\u010dk\u016f Portage 3.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Stabilizov\u00e1n<\/a><\/noindex> vyd\u00e1n\u00ed syst\u00e9mu spr\u00e1vy bal\u00ed\u010dk\u016f Portage 3.0<\/a><\/noindex>, pou\u017e\u00edvan\u00e9ho v distribuci Gentoo Linux<\/a><\/noindex>. P\u0159edlo\u017een\u00e1 v\u011btev shrnula dlouhou pr\u00e1ci na p\u0159echodu na Python 3 a ukon\u010den\u00ed podpory Python 2.7. <\/p>\n

Krom\u011b ukon\u010den\u00ed podpory Python 2.7 bylo dal\u0161\u00edm d\u016fle\u017eit\u00fdm zm\u011bnou zahrnut\u00ed optimalizac\u00ed<\/a><\/noindex>, kter\u00e9 umo\u017enily zrychlit v\u00fdpo\u010dty spojen\u00e9 s ur\u010den\u00edm z\u00e1vislost\u00ed o 50-60%. Zaj\u00edmav\u00e9 je, \u017ee n\u011bkte\u0159\u00ed v\u00fdvoj\u00e1\u0159i navrhovali p\u0159epsat k\u00f3d pro vy\u0159\u00edzen\u00ed z\u00e1vislost\u00ed v C\/C++ nebo Go za \u00fa\u010delem zrychlen\u00ed jeho \u010dinnosti, ale poda\u0159ilo se vy\u0159e\u0161it p\u0159etrv\u00e1vaj\u00edc\u00ed probl\u00e9m s minim\u00e1ln\u00edmi zm\u011bnami.<\/p>\n

Profilov\u00e1n\u00ed existuj\u00edc\u00edho k\u00f3du uk\u00e1zalo, \u017ee v\u011bt\u0161ina \u010dasu p\u0159i v\u00fdpo\u010dtech je str\u00e1vena vol\u00e1n\u00edm funkc\u00ed use_reduce a catpkgsplit s opakuj\u00edc\u00edm se souborem argument\u016f (nap\u0159\u00edklad funkce catpkgsplit byla vol\u00e1na 1 a\u017e 5 milion\u016fkr\u00e1t). Pro zrychlen\u00ed bylo aplikov\u00e1no cachov\u00e1n\u00ed v\u00fdsledk\u016f t\u011bchto funkc\u00ed pomoc\u00ed slovn\u00edk\u016f. Optim\u00e1ln\u00ed pro uchov\u00e1v\u00e1n\u00ed cache byla vestav\u011bn\u00e1 funkce lru_cache, ale ta byla dostupn\u00e1 pouze od verz\u00ed Pythonu 3.2. Pro zaji\u0161t\u011bn\u00ed kompatibility s d\u0159\u00edv\u011bj\u0161\u00edmi verzemi byla p\u0159id\u00e1na z\u00e1stupn\u00e1 funkce, kter\u00e1 nahrazovala lru_cache, av\u0161ak rozhodnut\u00ed o ukon\u010den\u00ed podpory Python 2.7 v Portage 3.0 zna\u010dn\u011b zjednodu\u0161ilo \u00fakol a umo\u017enilo se vyhnout t\u00e9to mezivrstv\u011b. <\/p>\n

Pou\u017eit\u00ed cache umo\u017enilo sn\u00ed\u017eit dobu prov\u00e1d\u011bn\u00ed operace «emerge -uDvpU —with-bdeps=y @world» na notebooku ThinkPad X220 z 5 minut 20 sekund na 3 minuty 16 sekund (63 %). Testy na jin\u00fdch syst\u00e9mech uk\u00e1zaly n\u00e1r\u016fst v\u00fdkonu minim\u00e1ln\u011b o 48 %.<\/p>\n

V\u00fdvoj\u00e1\u0159, kter\u00fd p\u0159ipravil zm\u011bnu, se tak\u00e9 pokusil implementovat prototyp k\u00f3du pro vy\u0159\u00edzen\u00ed z\u00e1vislost\u00ed v C++ nebo Rust, ale \u00fakol se uk\u00e1zal jako p\u0159\u00edli\u0161 slo\u017eit\u00fd, jeliko\u017e vy\u017eadoval portov\u00e1n\u00ed velk\u00e9ho objemu k\u00f3du a bylo pochybn\u00e9, zda by z\u00edskan\u00fd v\u00fdsledek st\u00e1l za vynalo\u017een\u00e9 \u00fasil\u00ed. <\/p>\n

<\/a><\/noindex><\/p>\n

Zdroj: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0421\u0442\u0430\u0431\u0438\u043b\u0438\u0437\u0438\u0440\u0432\u0430\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043f\u0430\u043a\u0435\u0442\u0430\u043c\u0438 Portage 3.0, \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u043e\u0439 \u0432 \u0434\u0438\u0441\u0442\u0440\u0438\u0431\u0443\u0442\u0438\u0432\u0435 Gentoo Linux. \u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u043d\u0430\u044f \u0432\u0435\u0442\u043a\u0430 \u043f\u043e\u0434\u0432\u0435\u043b\u0430 \u0438\u0442\u043e\u0433 \u0434\u043b\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0439 \u0440\u0430\u0431\u043e\u0442\u044b \u043f\u043e \u043f\u0435\u0440\u0435\u0445\u043e\u0434\u0443 \u043d\u0430 Python 3 \u0438 \u043f\u0440\u0435\u043a\u0440\u0430\u0449\u0435\u043d\u0438\u044e \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 Python 2.7. \u041a\u0440\u043e\u043c\u0435 \u043f\u0440\u0435\u043a\u0440\u0430\u0449\u0435\u043d\u0438\u044f \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 Python 2.7, \u0434\u0440\u0443\u0433\u0438\u043c \u0432\u0430\u0436\u043d\u044b\u043c \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0435\u043c \u0441\u0442\u0430\u043b\u043e \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435 \u043e\u043f\u0442\u0438\u043c\u0438\u0437\u0430\u0446\u0438\u0439, \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0432\u0448\u0438\u0445 \u043d\u0430 50-60% \u0443\u0441\u043a\u043e\u0440\u0438\u0442\u044c \u0432\u044b\u0447\u0438\u0441\u043b\u0435\u043d\u0438\u044f, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0435 \u0441 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u0435\u043c \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u0435\u0439. \u0418\u043d\u0442\u0435\u0440\u0435\u0441\u043d\u043e, \u0447\u0442\u043e \u043d\u0435\u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u043b\u0438 \u043f\u0435\u0440\u0435\u043f\u0438\u0441\u0430\u0442\u044c \u043a\u043e\u0434 […]<\/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-93424","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\udd47Projekt Gentoo p\u0159edstavil syst\u00e9m spr\u00e1vy bal\u00ed\u010dk\u016f Portage 3.0 | ProHoster","description":"Stabilizov\u00e1no vyd\u00e1n\u00ed syst\u00e9mu spr\u00e1vy bal\u00ed\u010dk\u016f","canonical_url":"https:\/\/prohoster.info\/cs\/blog\/news\/proekt-gentoo-predstavil-sistemu-upravleniya-paketami-portage-3-0","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"cs_CZ","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\u0440\u043e\u0435\u043a\u0442 Gentoo \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b \u0441\u0438\u0441\u0442\u0435\u043c\u0443 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043f\u0430\u043a\u0435\u0442\u0430\u043c\u0438 Portage 3.0 | ProHoster","og:description":"\u0421\u0442\u0430\u0431\u0438\u043b\u0438\u0437\u0438\u0440\u0432\u0430\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043f\u0430\u043a\u0435\u0442\u0430\u043c\u0438","og:url":"https:\/\/prohoster.info\/cs\/blog\/news\/proekt-gentoo-predstavil-sistemu-upravleniya-paketami-portage-3-0","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":"2020-09-07T05:42:06+00:00","article:modified_time":"2020-09-07T05:42:06+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"93424","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":"2021-02-28 11:48:27","updated":"2022-10-09 13:26:09","focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/posts\/93424","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/comments?post=93424"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/posts\/93424\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/media?parent=93424"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/categories?post=93424"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/tags?post=93424"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}