{"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\/fr\/blog\/news\/razrabotchiki-ubuntu-proanalizirovali-effektivnost-vklyucheniya-pgo-optimizaczii","title":{"rendered":"Les d\u00e9veloppeurs d'Ubuntu ont analys\u00e9 l'efficacit\u00e9 de l'activation de l'optimisation PGO.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

La soci\u00e9t\u00e9 Canonical a publi\u00e9 les r\u00e9sultats d'une \u00e9valuation des changements de performances lors de la reconstruction de paquets avec l'optimisation bas\u00e9e sur les r\u00e9sultats du profilage de code (PGO \u2014 optimisation guid\u00e9e par le profil), permettant de g\u00e9n\u00e9rer un code plus optimal bas\u00e9 sur l'analyse des caract\u00e9ristiques d'ex\u00e9cution du programme. Dans le cadre de ce travail, il a \u00e9t\u00e9 conclu que l'activation de l'optimisation PGO a permis de r\u00e9duire la charge sur le CPU de 5 \u00e0 7 % et d'acc\u00e9l\u00e9rer le temps de compilation. <\/p>\n

Au cours de l'exp\u00e9rience, la performance de compilation des packages OpenSSL, GDB, Emacs et Python3.12 a \u00e9t\u00e9 mesur\u00e9e dans un environnement virtuel QEMU, \u00e9mulant un syst\u00e8me RISC-V sur un ordinateur avec architecture x86_64. La diff\u00e9rence de performance a \u00e9t\u00e9 \u00e9valu\u00e9e pour QEMU, compil\u00e9 avec les options par d\u00e9faut et avec l'optimisation PGO activ\u00e9e. Les packages test\u00e9s pour la compilation ont \u00e9t\u00e9 s\u00e9lectionn\u00e9s de mani\u00e8re \u00e0 utiliser diff\u00e9rents langages de programmation, et le volume de code correspond \u00e0 1 \u00e0 6 heures de compilation dans l'\u00e9mulateur. <\/p>\n

D'un point de vue pratique, l'exp\u00e9rience a permis d'am\u00e9liorer la performance des environnements de compilation pour la plateforme RISC-V, ex\u00e9cut\u00e9s \u00e0 l'aide de l'\u00e9mulateur. Les travaux de compilation, qui auparavant prenaient une journ\u00e9e, se font d\u00e9sormais presque deux heures plus rapidement gr\u00e2ce \u00e0 l'optimisation PGO, ce qui permet de r\u00e9aliser quotidiennement deux compilations compl\u00e8tes suppl\u00e9mentaires. le serveur<\/a> deux compilations compl\u00e8tes suppl\u00e9mentaires.

\"Les<\/center>
\"Les<\/center>
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\"Les<\/center>
\n
Source : 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-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\udd47Les d\u00e9veloppeurs d'Ubuntu ont analys\u00e9 l'efficacit\u00e9 de l'activation de l'optimisation PGO | ProHoster","description":"La soci\u00e9t\u00e9 Canonical a publi\u00e9 le r\u00e9sultat de l'\u00e9valuation des changements de performance lors de la recompilation des packages en incluant l'optimisation bas\u00e9e sur les r\u00e9sultats de profilage de code (PGO - Profile-guided optimization), permettant.","canonical_url":"https:\/\/prohoster.info\/fr\/blog\/news\/razrabotchiki-ubuntu-proanalizirovali-effektivnost-vklyucheniya-pgo-optimizaczii","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"fr_FR","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\u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 Ubuntu \u043f\u0440\u043e\u0430\u043d\u0430\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043b\u0438 \u044d\u0444\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u043e\u0441\u0442\u044c \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f PGO-\u043e\u043f\u0442\u0438\u043c\u0438\u0437\u0430\u0446\u0438\u0438 | ProHoster","og:description":"\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 - 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