{"id":160719,"date":"2026-02-12T17:11:56","date_gmt":"2026-02-12T15:11:56","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-yadre-linux-na-12-uskorena-obrabotka-vhodyashhih-udp-paketov"},"modified":"2026-02-12T17:11:56","modified_gmt":"2026-02-12T15:11:56","slug":"v-yadre-linux-na-12-uskorena-obrabotka-vhodyashhih-udp-paketov","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sv\/blog\/news\/v-yadre-linux-na-12-uskorena-obrabotka-vhodyashhih-udp-paketov","title":{"rendered":"I k\u00e4rnan av Linux har bearbetningen av inkommande UDP-paket \u00f6kat med 12%.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

En upps\u00e4ttning \u00e4ndringar har antagits i kodbasen som ligger till grund f\u00f6r Linux-k\u00e4rna 7.0, vilket i stresstester i ett 100-gigabit-n\u00e4tverk har m\u00f6jliggjort en \u00f6kning av prestanda f\u00f6r bearbetning av inkommande UDP-paket med 12%. Optimeringen har genomf\u00f6rts genom manuell inlinering av tv\u00e5 funktioner. Det noteras att funktionen timecounter_cyc2time() kan anropas f\u00f6r varje inkommande paket, eftersom moderna protokoll kr\u00e4ver tidsregistrering f\u00f6r ankomst av paket. P\u00e5 grund av detta p\u00e5 en belastad servern<\/a> funktionen timecounter_cyc2time() kan anropas mer \u00e4n 100 miljoner g\u00e5nger per sekund. <\/p>\n

I denna situation kunde de automatiskt till\u00e4mpade optimeringarna av kompilatorn, s\u00e5som FDO (Feedback Directed Optimization), LTO (Link Time Optimization) och PGO (Profile Guided Optimization), inte identifiera den heta kodsegmentet och ignorerade det, f\u00f6rmodligen p\u00e5 grund av att n\u00e4tverkskortens drivrutiner levereras i form av separata moduler. Men manuell inline-utveckling av funktionen gav en betydande prestandaf\u00f6rb\u00e4ttring.
\n
K\u00e4lla: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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\u0442\u0440\u0435\u0431\u0443\u044e\u0442 \u0443\u0447\u0451\u0442\u0430 \u0432\u0440\u0435\u043c\u0435\u043d\u0438 \u043f\u043e\u0441\u0442\u0443\u043f\u043b\u0435\u043d\u0438\u044f \u043f\u0430\u043a\u0435\u0442\u0430. \u0418\u0437-\u0437\u0430 \u044d\u0442\u043e\u0433\u043e \u043d\u0430 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-160719","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\udd47I k\u00e4rnan av Linux har bearbetningen av inkommande UDP-paket \u00f6kat med 12% | ProHoster","description":"En upps\u00e4ttning \u00e4ndringar har antagits i kodbasen som ligger till grund f\u00f6r Linux-k\u00e4rna 7.0, vilket i stresstester i ett 100-gigabit-n\u00e4tverk har m\u00f6jliggjort en \u00f6kning av prestanda f\u00f6r bearbetning av inkommande UDP-paket.","canonical_url":"https:\/\/prohoster.info\/sv\/blog\/news\/v-yadre-linux-na-12-uskorena-obrabotka-vhodyashhih-udp-paketov","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"sv_SE","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\u0412 \u044f\u0434\u0440\u0435 Linux \u043d\u0430 12% \u0443\u0441\u043a\u043e\u0440\u0435\u043d\u0430 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0430 \u0432\u0445\u043e\u0434\u044f\u0449\u0438\u0445 UDP-\u043f\u0430\u043a\u0435\u0442\u043e\u0432 | ProHoster","og:description":"\u0412 \u043a\u043e\u0434\u043e\u0432\u0443\u044e \u0431\u0430\u0437\u0443, \u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u0435 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u0444\u043e\u0440\u043c\u0438\u0440\u0443\u0435\u0442\u0441\u044f \u044f\u0434\u0440\u043e Linux 7.0, \u043f\u0440\u0438\u043d\u044f\u0442 \u043d\u0430\u0431\u043e\u0440 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439, \u043f\u0440\u0438 \u043f\u0440\u043e\u0432\u0435\u0434\u0435\u043d\u0438\u0438 \u0441\u0442\u0440\u0435\u0441\u0441-\u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0432 100-\u0433\u0438\u0433\u0430\u0431\u0438\u0442\u043d\u043e\u0439 \u0441\u0435\u0442\u0438 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0432\u0448\u0438\u0445 \u043f\u043e\u0432\u044b\u0441\u0438\u0442\u044c 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\u043d\u0430.","og:url":"https:\/\/prohoster.info\/sv\/blog\/news\/v-yadre-linux-na-12-uskorena-obrabotka-vhodyashhih-udp-paketov","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":"2026-02-12T15:11:56+00:00","article:modified_time":"2026-02-12T15:11:56+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"160719","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":"default","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":"2026-02-12 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