{"id":102845,"date":"2022-01-03T15:36:38","date_gmt":"2022-01-03T13:36:38","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/%d0%be%d0%bf%d1%83%d0%b1%d0%bb%d0%b8%d0%ba%d0%be%d0%b2%d0%b0%d0%bd-%d0%bd%d0%b0%d0%b1%d0%be%d1%80-%d0%bf%d0%b0%d1%82%d1%87%d0%b5%d0%b9-%d1%83%d1%81%d0%ba%d0%be%d1%80%d1%8f%d1%8e%d1%89%d0%b8%d1%85"},"modified":"2022-01-03T15:36:38","modified_gmt":"2022-01-03T13:36:38","slug":"%d0%be%d0%bf%d1%83%d0%b1%d0%bb%d0%b8%d0%ba%d0%be%d0%b2%d0%b0%d0%bd-%d0%bd%d0%b0%d0%b1%d0%be%d1%80-%d0%bf%d0%b0%d1%82%d1%87%d0%b5%d0%b9-%d1%83%d1%81%d0%ba%d0%be%d1%80%d1%8f%d1%8e%d1%89%d0%b8%d1%85","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/%d0%be%d0%bf%d1%83%d0%b1%d0%bb%d0%b8%d0%ba%d0%be%d0%b2%d0%b0%d0%bd-%d0%bd%d0%b0%d0%b1%d0%be%d1%80-%d0%bf%d0%b0%d1%82%d1%87%d0%b5%d0%b9-%d1%83%d1%81%d0%ba%d0%be%d1%80%d1%8f%d1%8e%d1%89%d0%b8%d1%85","title":{"rendered":"Avaldatud on komplekt pat\u0161ide, mis kiirendavad Linuxi kerneli kompileerimist 50-80%","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Ingo Molnar, tuntud Linuxi tuuma arendaja ja Completely Fair Scheduler'i (CFS) autor, on pakkunud arutamiseks Linuxi tuuma arendajate meililistis rida pat\u0161esid, mis m\u00f5jutavad enam kui poole k\u00f5igist tuumakoodi failidest ja tagavad tuuma t\u00e4ieliku \u00fcmberkompileerimise kiiruset\u00f5usu 50-80% s\u00f5ltuvalt seadistustest. Tehtud optimeerimine on m\u00e4rkimisv\u00e4\u00e4rne, kuna see h\u00f5lmab ajaloo suurimat tuuma arenduse muudatuste komplekti \u2013 kokku on ette pandud 2297 pat\u0161i, mis muudavad rohkem kui 25 tuhat faili (10 tuhat pealkirjafile ja 15 tuhat l\u00e4htekoodi faili). <\/p>\n

J\u00f5udluse t\u00f5us saavutatakse p\u00e4isefailide t\u00f6\u00f6tlemismeetodi muutmise kaudu. T\u00e4heldatakse, et kolmek\u00fcmne aasta jooksul kerneli arendamist on p\u00e4isefailide seis halvenenud paljude failide vaheliste keeruliste s\u00f5ltuvuste t\u00f5ttu. T\u00f6\u00f6 p\u00e4isefailide \u00fcmberstruktureerimiseks kestis rohkem kui aasta ja n\u00f5udis m\u00e4rkimisv\u00e4\u00e4rset redigeerimist hierarhias ja s\u00f5ltuvustes. \u00dcmberstruktureerimise k\u00e4igus tehti t\u00f6\u00f6 t\u00fc\u00fcpide ja API definitsioonide eraldamiseks erinevate kerneli alams\u00fcsteemide jaoks. <\/p>\n

Tehtud muudatuste seas: k\u00f5rgemate pealkirjade failide eraldamine, inline-funktsioonide seondavate pealkirjade failide eemaldamine, t\u00fc\u00fcpide ja API jaoks pealkirjafailide eraldamine, eraldiseisva pealkirjafailide koostamine (umbes 80 faili omas h\u00e4irivaid s\u00f5ltuvusi, mis esitati teiste pealkirjafailide kaudu), s\u00f5ltuvuste automaatne lisamine *.h ja *.c failidele, pealkirjafailide j\u00e4rk-j\u00e4rguline optimeerimine, CONFIG_KALLSYMS_FAST=y re\u017eiimi kasutamine, valikuline C-failide konsolideerimine koostamisplokkidesse, et v\u00e4hendada objektifailide arvu. <\/p>\n

Tulemusena on tehtud t\u00f6\u00f6 v\u00f5imaldanud v\u00e4hendada pealkirjafailide suurust, mida t\u00f6\u00f6deldakse postprotsessimise etapis 1-2 korda. N\u00e4iteks enne optimeerimist viis pealkirjafaili linux\/gfp.h kasutamine 13543 koodirea ja 303 s\u00f5ltuva pealkirjafaili lisandumiseni, kuid p\u00e4rast optimeerimist kahanes suurus 181 reani ja 26 s\u00f5ltuvasse faili. Teine n\u00e4ide: kui preprocessida faili kernel\/pid.c ilma pat\u0161ita, lisandub 94 tuhat koodirida, millest enamik ei kasutata pid.c-s. Pealkirjafailide eraldamine v\u00f5imaldas v\u00e4hendada t\u00f6\u00f6deldava koodi mahtu kolm korda, v\u00e4hendades t\u00f6\u00f6deldud ridade arvu 36 tuhandeni. <\/p>\n

T\u00e4ieliku tuuma uuesti koostamise korral k\u00e4suga \u00abmake -j96 vmlinux\u00bb testimise s\u00fcsteemis n\u00e4itas pat\u0161ide rakendamine haru v5.16-rc7 koostamisaja v\u00e4henemist 231,34 sekundilt 129,97 sekundile (15,5 kuni 27,7 koostamist tunnis) ning suurendas ka CPU tuumade efektiivsuse kasutamist koostamise ajal. Inkrementaalse koostamise puhul on optimeerimise efekt veelgi m\u00e4rgatavam \u2014 tuuma uuesti koostamise aeg p\u00e4rast pealkirjade failide muutmist v\u00e4henes mitu korda (112% kuni 173% s\u00f5ltuvalt muudetud pealkirjafailist). Optimeerimised on praegu saadaval ainult arhitektuuridele ARM64, MIPS, Sparc ja x86 (32- ja 64-bittine).
\n
Allikas: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0418\u043d\u0433\u043e \u041c\u043e\u043b\u043d\u0430\u0440 (Ingo Molnar), \u0438\u0437\u0432\u0435\u0441\u0442\u043d\u044b\u0439 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a Linux \u044f\u0434\u0440\u0430 \u0438 \u0430\u0432\u0442\u043e\u0440 \u043f\u043b\u0430\u043d\u0438\u0440\u043e\u0432\u0449\u0438\u043a\u0430 \u0437\u0430\u0434\u0430\u0447 CFS (Completely Fair Scheduler), \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0438\u043b \u0434\u043b\u044f \u043e\u0431\u0441\u0443\u0436\u0434\u0435\u043d\u0438\u044f \u0432 \u0441\u043f\u0438\u0441\u043a\u0435 \u0440\u0430\u0441\u0441\u044b\u043b\u043a\u0438 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 \u044f\u0434\u0440\u0430 Linux \u0441\u0435\u0440\u0438\u044e \u043f\u0430\u0442\u0447\u0435\u0439, \u0437\u0430\u0442\u0440\u0430\u0433\u0438\u0432\u0430\u044e\u0449\u0438\u0445 \u0431\u043e\u043b\u0435\u0435 \u043f\u043e\u043b\u043e\u0432\u0438\u043d\u044b \u0432\u0441\u0435\u0445 \u0444\u0430\u0439\u043b\u043e\u0432 \u0432 \u0438\u0441\u0445\u043e\u0434\u043d\u044b\u0445 \u0442\u0435\u043a\u0441\u0442\u0430\u0445 \u044f\u0434\u0440\u0430 \u0438 \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u044e\u0449\u0438\u0445 \u0443\u0432\u0435\u043b\u0438\u0447\u0435\u043d\u0438\u0435 \u0441\u043a\u043e\u0440\u043e\u0441\u0442\u0438 \u043f\u043e\u043b\u043d\u043e\u0439 \u043f\u0435\u0440\u0435\u0441\u0431\u043e\u0440\u043a\u0438 \u044f\u0434\u0440\u0430 \u043d\u0430 50-80% \u0432 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u0438 \u043e\u0442 \u043d\u0430\u0441\u0442\u0440\u043e\u0435\u043a. \u0420\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u043d\u0430\u044f \u043e\u043f\u0442\u0438\u043c\u0438\u0437\u0430\u0446\u0438\u044f \u043f\u0440\u0438\u043c\u0435\u0447\u0430\u0442\u0435\u043b\u044c\u043d\u0430 \u0442\u0435\u043c, \u0447\u0442\u043e \u043e\u043d\u0430 […]<\/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-102845","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\udd47K\u00e4esolev on avaldatud plaastrite kogum, mis kiirendab Linuxi tuuma kompileerimist 50-80% | ProHoster","description":"Ingo Molnar, tuntud Linuxi tuuma arendaja ja CFS (Completely Fair Scheduler) ajakava autor, pakkus arutamiseks Linuxi tuuma arendajate meililistis v\u00e4lja seeria plaastrite, mis 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