{"id":183759,"date":"2026-10-12T16:53:43","date_gmt":"2026-10-12T14:53:43","guid":{"rendered":"https:\/\/prohoster.info\/blog\/news\/linus-torvalds-eksperimentiruet-s-generacziej-izmenenij-k-yadru-cherez-ai"},"modified":"2026-10-12T16:53:48","modified_gmt":"2026-10-12T14:53:48","slug":"linus-torvalds-experiments-with-ai-generated-kernel-changes","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/news\/linus-torvalds-experiments-with-ai-generated-kernel-changes","title":{"rendered":"Linus Torvalds experimentuje s generovan\u00edm zmien v jadre pomocou AI.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Linus Torvalds pripravil sadu z\u00e1plat pre subsyst\u00e9m spr\u00e1vy pam\u00e4te v jadre Linux, ktor\u00e9 implementuj\u00fa optimaliz\u00e1ciu \u010d\u00edtania mal\u00fdch blokov \u00fadajov z str\u00e1nkov\u00e9ho cache bez at\u00f3movej zmeny po\u010d\u00edtadla odkazov (refcount) v \u0161trukt\u00fare folio. V texte commitu je uveden\u00e9, \u017ee zmeny, s\u00favisiace testy a n\u00e1vrh pozn\u00e1mky vytvoril AI asistent Claude Code pod doh\u013eadom Torvaldsa. Zmena bola pridan\u00e1 do samostatnej vetvy jadra noref-filemap-read-with-llm a zatia\u013e nie je jasn\u00e9, \u010di bude presunut\u00e1 do hlavnej vetvy alebo je to len intern\u00fd experiment.<\/p>\n

Pri testovan\u00ed sa v\u010faka patchom podarilo zv\u00fd\u0161i\u0165 priepustnos\u0165 \u010d\u00edtania mal\u00fdch s\u00faborov v konfigur\u00e1cii s 8 vl\u00e1knami z 9,9-10,4 na 30-33 mili\u00f3nov oper\u00e1ci\u00ed za sekundu (n\u00e1rast o 3-n\u00e1sobok), s 4 vl\u00e1knami \u2014 z 8,9-11,6 na 25-26 mili\u00f3nov\/s (n\u00e1rast o 2-n\u00e1sobok), a pri jednovl\u00e1knovom za\u0165a\u017een\u00ed z 7,9-8,1 na 8,8-8,9 mili\u00f3na\/s. N\u00e1rast v\u00fdkonu sa vysvet\u013euje t\u00fdm, \u017ee pri s\u00fa\u010dasnom pr\u00edstupe k str\u00e1nkov\u00e9mu cache vznik\u00e1 tvrd\u00e1 konkurencia medzi vl\u00e1knami pri pr\u00edstupe k cache. Napr\u00edklad, ke\u010f 8 vl\u00e1ken sa sna\u017e\u00ed s\u00fa\u010dasne \u010d\u00edta\u0165 po 16 bajtov \u00fadajov, 99,92% \u010dasu sa m\u00ed\u0148a nie na samotn\u00e9 \u010d\u00edtanie, ale na \u010dakanie na pr\u00edstup k po\u010d\u00edta\u010du referenci\u00ed.<\/p>\n

V z\u00e1plate na zabezpe\u010denie spr\u00e1vnosti \u00fadajov sa namiesto nastavenia samostatn\u00fdch z\u00e1mkov, zmien po\u010d\u00edtadiel odkazov alebo medziserverovania pou\u017e\u00edva obch\u00e1dzaj\u00faci variant, ktor\u00fd vyu\u017e\u00edva oneskoren\u00e9 uvo\u013enenie pam\u00e4te so synchroniz\u00e1ciou pomocou mechanizmu RCU (Read-Copy-Update). Navrhnut\u00e1 met\u00f3da v z\u00e1plate zabezpe\u010duje, \u017ee str\u00e1nka pam\u00e4te nebude fyzicky uvo\u013enen\u00e1, pokia\u013e \u010d\u00edtaj\u00face vl\u00e1kno nedokon\u010d\u00ed kop\u00edrovanie \u00fadajov.
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Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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