{"id":120609,"date":"2024-11-20T13:09:07","date_gmt":"2024-11-20T11:09:09","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/razrabotchiki-ubuntu-proanalizirovali-effektivnost-vklyucheniya-pgo-optimizaczii"},"modified":"2024-11-20T13:09:07","modified_gmt":"2024-11-20T11:09:09","slug":"razrabotchiki-ubuntu-proanalizirovali-effektivnost-vklyucheniya-pgo-optimizaczii","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/novosti-interneta\/razrabotchiki-ubuntu-proanalizirovali-effektivnost-vklyucheniya-pgo-optimizaczii","title":{"rendered":"Gli sviluppatori di Ubuntu hanno analizzato l'efficacia dell'ottimizzazione PGO.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

L'azienda Canonical ha pubblicato i risultati di una valutazione delle modifiche alle prestazioni nella ricompilazione dei pacchetti con l'ottimizzazione basata sui risultati della profilazione del codice (PGO - Profile-guided optimization), che consente di generare un codice pi\u00f9 ottimizzato sulla base dell'analisi delle caratteristiche di esecuzione del programma. Dallo studio condotto, \u00e8 emerso che l'attivazione dell'ottimizzazione PGO ha permesso di ridurre del 5-7% il carico sulla CPU e di velocizzare i tempi di compilazione. <\/p>\n

Durante l'esperimento condotto, sono state misurate le prestazioni di compilazione dei pacchetti OpenSSL, GDB, Emacs e Python3.12 in un ambiente virtuale QEMU, che emula un sistema RISC-V su un computer con architettura x86_64. La differenza nelle prestazioni \u00e8 stata valutata per QEMU, compilato con le opzioni predefinite e con l'abilitazione dell'ottimizzazione PGO. I pacchetti testati per la compilazione sono stati scelti in modo che utilizzassero diversi linguaggi di programmazione e il volume di codice corrispondesse a 1-6 ore di compilazione nell'emulatore. <\/p>\n

Dal punto di vista pratico, l'esperimento ha permesso di aumentare le prestazioni degli ambienti di compilazione per la piattaforma RISC-V, eseguiti tramite emulatore. I lavori di compilazione, precedentemente completati in un giorno, grazie all'ottimizzazione PGO sono stati eseguiti quasi due ore pi\u00f9 velocemente, consentendo di effettuare quotidianamente due server<\/a> compilazioni complete aggiuntive.

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

\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Canonical \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0430 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442 \u043e\u0446\u0435\u043d\u043a\u0438 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u043f\u0440\u0438 \u043f\u0435\u0440\u0435\u0441\u0431\u043e\u0440\u043a\u0435 \u043f\u0430\u043a\u0435\u0442\u043e\u0432 \u0441 \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435\u043c \u043e\u043f\u0442\u0438\u043c\u0438\u0437\u0430\u0446\u0438\u0438 \u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u0435 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u043e\u0432 \u043f\u0440\u043e\u0444\u0438\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u043a\u043e\u0434\u0430 (PGO — Profile-guided optimization), \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0439 \u0433\u0435\u043d\u0435\u0440\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u0431\u043e\u043b\u0435\u0435 \u043e\u043f\u0442\u0438\u043c\u0430\u043b\u044c\u043d\u044b\u0439 \u043a\u043e\u0434 \u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u0435 \u0430\u043d\u0430\u043b\u0438\u0437\u0430 \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u0435\u0439 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u044b. \u0412 \u0445\u043e\u0434\u0435 \u043f\u0440\u043e\u0434\u0435\u043b\u0430\u043d\u043d\u043e\u0439 \u0440\u0430\u0431\u043e\u0442\u044b \u0431\u044b\u043b \u0441\u0434\u0435\u043b\u0430\u043d \u0432\u044b\u0432\u043e\u0434, \u0447\u0442\u043e \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435 PGO-\u043e\u043f\u0442\u0438\u043c\u0438\u0437\u0430\u0446\u0438\u0438 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u043b\u043e \u043d\u0430 5-7% \u0441\u043d\u0438\u0437\u0438\u0442\u044c \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0443 \u043d\u0430 CPU \u0438 \u0443\u0441\u043a\u043e\u0440\u0438\u0442\u044c \u0432\u0440\u0435\u043c\u044f \u0441\u0431\u043e\u0440\u043a\u0438. \u0412 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":120610,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-120609","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-novosti-interneta"],"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\udd47Gli sviluppatori di Ubuntu hanno analizzato l'efficacia dell'attivazione dell'ottimizzazione PGO | ProHoster","description":"Canonical ha pubblicato i risultati della valutazione delle modifiche alle prestazioni durante la ricompilazione dei pacchetti con l'ottimizzazione basata sui risultati della profilazione del codice (PGO - Profile-guided optimization), che consente di generare codice pi\u00f9 ottimale analizzando le caratteristiche di esecuzione del programma. Dallo studio \u00e8 emerso che l'attivazione dell'ottimizzazione PGO ha ridotto il carico della CPU del 5-7% e accelerato i tempi di compilazione. 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Profile-guided optimization), \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0439 \u0433\u0435\u043d\u0435\u0440\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u0431\u043e\u043b\u0435\u0435 \u043e\u043f\u0442\u0438\u043c\u0430\u043b\u044c\u043d\u044b\u0439 \u043a\u043e\u0434 \u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u0435 \u0430\u043d\u0430\u043b\u0438\u0437\u0430 \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u0435\u0439 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u044b. \u0412 \u0445\u043e\u0434\u0435 \u043f\u0440\u043e\u0434\u0435\u043b\u0430\u043d\u043d\u043e\u0439 \u0440\u0430\u0431\u043e\u0442\u044b \u0431\u044b\u043b \u0441\u0434\u0435\u043b\u0430\u043d \u0432\u044b\u0432\u043e\u0434, \u0447\u0442\u043e \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435 PGO-\u043e\u043f\u0442\u0438\u043c\u0438\u0437\u0430\u0446\u0438\u0438 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u043b\u043e \u043d\u0430 5-7% \u0441\u043d\u0438\u0437\u0438\u0442\u044c \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0443 \u043d\u0430 CPU \u0438 \u0443\u0441\u043a\u043e\u0440\u0438\u0442\u044c \u0432\u0440\u0435\u043c\u044f \u0441\u0431\u043e\u0440\u043a\u0438. \u0412","og:url":"https:\/\/prohoster.info\/it\/blog\/novosti-interneta\/razrabotchiki-ubuntu-proanalizirovali-effektivnost-vklyucheniya-pgo-optimizaczii","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":"2024-11-20T11:09:09+00:00","article:modified_time":"2024-11-20T11:09:09+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"120609","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":"2026-02-09 22:04:19","breadcrumb_settings":null,"limit_modified_date":false,"reviewed_by":null,"ai":null,"created":"2026-01-23 08:09:19","updated":"2026-02-09 22:04:19"},"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/posts\/120609","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/comments?post=120609"}],"version-history":[{"count":1,"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/posts\/120609\/revisions"}],"predecessor-version":[{"id":160073,"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/posts\/120609\/revisions\/160073"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/media\/120610"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/media?parent=120609"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/categories?post=120609"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/tags?post=120609"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}