{"id":104669,"date":"2022-07-18T21:36:39","date_gmt":"2022-07-18T19:36:39","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/eksperiment-po-povysheniyu-effektivnosti-raboty-utility-cat"},"modified":"2022-07-18T21:36:39","modified_gmt":"2022-07-18T19:36:39","slug":"eksperiment-po-povysheniyu-effektivnosti-raboty-utility-cat","status":"publish","type":"post","link":"https:\/\/prohoster.info\/de\/blog\/news\/eksperiment-po-povysheniyu-effektivnosti-raboty-utility-cat","title":{"rendered":"Experiment zur Steigerung der Effizienz des cat-Utilities","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Ariadne Conill, die Sch\u00f6pferin des Musikplayers Audacious, Initiatorin der Entwicklung des Protokolls IRCv3 und Leiterin des Sicherheitsteams von Alpine Linux, f\u00fchrte eine Untersuchung durch, wie die cat-Utility optimiert werden kann, um einen oder mehrere Dateien an den Standardausgabestrom auszugeben. Um die Leistung von cat in Linux zu verbessern, wurden zwei Optimierungsans\u00e4tze vorgeschlagen, die auf den Systemaufrufen sendfile und splice basieren, um Daten direkt zwischen Dateideskriptoren auf Kernel-Ebene ohne Kontextwechsel in den Benutzermodus zu kopieren. <\/p>\n

Die Basisimplementierung, die traditionelle Lese- und Schreibaufrufe verwendet, die zu einem Kontextwechsel f\u00fchren, zeigte beim Kopieren einer 4GB-Datei aus tmpfs eine Leistung von 3,6 GB\/s. Die Variante auf Basis von sendfile erm\u00f6glichte eine Leistungssteigerung auf 6,4 GB\/s, und die Variante auf Basis von splice erreichte 11,6 GB\/s, was mehr als dreimal schneller war als die urspr\u00fcngliche Variante.
\n
Quelle: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0410\u0440\u0438\u0430\u0434\u043d\u0430 \u041a\u043e\u043d\u0438\u043b\u043b (Ariadne Conill), \u0441\u043e\u0437\u0434\u0430\u0442\u0435\u043b\u044c \u043c\u0443\u0437\u044b\u043a\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0438\u0433\u0440\u044b\u0432\u0430\u0442\u0435\u043b\u044f Audacious, \u0438\u043d\u0438\u0446\u0438\u0430\u0442\u043e\u0440 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 IRCv3 \u0438 \u043b\u0438\u0434\u0435\u0440 \u043a\u043e\u043c\u0430\u043d\u0434\u044b \u043f\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044e \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 Alpine Linux, \u043f\u0440\u043e\u0432\u0435\u043b\u0430 \u0438\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u043d\u0438\u0435 \u043d\u0430\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u043c\u043e\u0436\u043d\u043e \u043e\u043f\u0442\u0438\u043c\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u0443\u0442\u0438\u043b\u0438\u0442\u0443 cat, \u043e\u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043b\u044f\u044e\u0449\u0443\u044e \u0432\u044b\u0432\u043e\u0434 \u0432 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u044b\u0439 \u0432\u044b\u0445\u043e\u0434\u043d\u043e\u0439 \u043f\u043e\u0442\u043e\u043a \u043e\u0434\u043d\u043e\u0433\u043e \u0438\u043b\u0438 \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u0438\u0445 \u0444\u0430\u0439\u043b\u043e\u0432. \u0414\u043b\u044f \u0443\u043b\u0443\u0447\u0448\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438 cat \u0432 Linux \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d\u043e \u0434\u0432\u0430 \u0432\u0430\u0440\u0438\u0430\u043d\u0442\u0430 \u043e\u043f\u0442\u0438\u043c\u0438\u0437\u0430\u0446\u0438\u0439, \u043e\u0441\u043d\u043e\u0432\u0430\u043d\u043d\u044b\u0445 \u043d\u0430 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0438 \u0441\u0438\u0441\u0442\u0435\u043c\u043d\u044b\u0445 \u0432\u044b\u0437\u043e\u0432\u043e\u0432 sendfile \u0438 splice […]<\/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-104669","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\udd47Experiment zur Steigerung der Effizienz des cat-Utilities | ProHoster","description":"Ariadne Conill, die Sch\u00f6pferin des Musikplayers Audacious, Initiatorin der Entwicklung des Protokolls IRCv3 und Leiterin des Sicherheitsteams von Alpine Linux, f\u00fchrte eine Untersuchung durch, um herauszufinden, wie viel man optimieren kann.","canonical_url":"https:\/\/prohoster.info\/de\/blog\/news\/eksperiment-po-povysheniyu-effektivnosti-raboty-utility-cat","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"de_DE","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\u042d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442 \u043f\u043e \u043f\u043e\u0432\u044b\u0448\u0435\u043d\u0438\u044e 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\u043c\u043e\u0436\u043d\u043e.","og:url":"https:\/\/prohoster.info\/de\/blog\/news\/eksperiment-po-povysheniyu-effektivnosti-raboty-utility-cat","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":"2022-07-18T19:36:39+00:00","article:modified_time":"2022-07-18T19:36:39+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"104669","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":null,"breadcrumb_settings":null,"limit_modified_date":false,"reviewed_by":null,"ai":null,"created":"2022-07-18 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