{"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\/ro\/blog\/news\/razrabotchiki-ubuntu-proanalizirovali-effektivnost-vklyucheniya-pgo-optimizaczii","title":{"rendered":"Dezvoltatorii Ubuntu au analizat eficien\u021ba activ\u0103rii optimiz\u0103rii PGO.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Compania Canonical a publicat rezultatele evalu\u0103rii modific\u0103rii performan\u021bei la recompilarea pachetelor cu activarea optimiz\u0103rii bazate pe rezultatele profil\u0103rii codului (PGO \u2014 optimizare ghidat\u0103 de profil), permi\u021b\u00e2nd generarea unui cod mai optimizat pe baza analizei caracteristicilor de execu\u021bie ale programului. \u00cen urma lucr\u0103rilor efectuate, s-a concluzionat c\u0103 activarea optimiz\u0103rii PGO a redus sarcina pe CPU cu 5-7% \u0219i a accelerat timpul de recompilare. <\/p>\n

\u00cen cadrul experimentului realizat, a fost m\u0103surat\u0103 performan\u021ba compil\u0103rii pachetelor OpenSSL, GDB, Emacs \u0219i Python3.12 \u00eentr-un mediu virtual QEMU, care emuleaz\u0103 sistemul RISC-V pe un computer cu arhitectura x86_64. Diferen\u021ba de performan\u021b\u0103 a fost evaluat\u0103 pentru QEMU, compilat cu op\u021biuni implicite \u0219i cu activarea optimiz\u0103rii PGO. Pachetele testate pentru compilare au fost alese astfel \u00eenc\u00e2t s\u0103 utilizeze diferite limbaje de programare, iar volumul de cod s\u0103 corespund\u0103 \u00eentre 1-6 ore de compilare \u00een emulator. <\/p>\n

Din punct de vedere practic, experimentul a permis \u00eembun\u0103t\u0103\u021birea performan\u021bei mediilor de compilare pentru platforma RISC-V, rulat\u0103 cu ajutorul emulatorului. Lucr\u0103rile de compilare, care anterior erau efectuate \u00een decurs de o zi, folosind optimizarea PGO, au \u00eenceput s\u0103 fie finalizate cu aproape dou\u0103 ore mai repede, ceea ce a permis efectuarea zilnic\u0103 a aceluia\u0219i server<\/a> dou\u0103 compil\u0103ri complete suplimentare.

\"Dezvoltatorii<\/center>
\"Dezvoltatorii<\/center>
\"Dezvoltatorii<\/center>
\"Dezvoltatorii<\/center>
\n
Sursa: opennet.ro<\/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\udd47Dezvoltatorii Ubuntu au analizat eficien\u021ba activ\u0103rii optimiz\u0103rii PGO | ProHoster","description":"Compania Canonical a publicat rezultatul evalu\u0103rii modific\u0103rii performan\u021bei \u00een timpul recompil\u0103rii pachetelor cu activarea optimiz\u0103rii bazate pe rezultatele profil\u0103rii codului (PGO - optimizarea ghidat\u0103 de profil), care permite.","canonical_url":"https:\/\/prohoster.info\/ro\/blog\/news\/razrabotchiki-ubuntu-proanalizirovali-effektivnost-vklyucheniya-pgo-optimizaczii","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"ro_RO","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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