{"id":123598,"date":"2025-04-18T15:05:14","date_gmt":"2025-04-18T13:05:14","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-yadre-linux-6-16-budet-prekrashhena-podderzhka-protokola-dccp"},"modified":"2025-04-18T15:05:14","modified_gmt":"2025-04-18T13:05:14","slug":"v-yadre-linux-6-16-budet-prekrashhena-podderzhka-protokola-dccp","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/v-yadre-linux-6-16-budet-prekrashhena-podderzhka-protokola-dccp","title":{"rendered":"V j\u00e1d\u0159e Linux 6.16 bude ukon\u010dena podpora protokolu DCCP","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Do v\u011btve net-next, ve kter\u00e9 se shroma\u017e\u010fuj\u00ed zm\u011bny pro budouc\u00ed vyd\u00e1n\u00ed j\u00e1dra Linux 6.16, bylo p\u0159ijato opat\u0159en\u00ed, kter\u00e9 odstra\u0148uje podporu s\u00ed\u0165ov\u00e9ho protokolu DCCP (Datagram Congestion Control Protocol). Podpora modul\u016f netfilter pro filtrov\u00e1n\u00ed paket\u016f DCCP z\u016fst\u00e1v\u00e1 zachov\u00e1na. Protokol DCCP byl standardizov\u00e1n a p\u0159ijat do j\u00e1dra v roce 2006. P\u0159edpokl\u00e1dalo se, \u017ee DCCP zv\u00fd\u0161\u00ed efektivitu streamov\u00e1n\u00ed a internetov\u00e9 telefonie v p\u0159et\u00ed\u017een\u00fdch s\u00edt\u00edch, ale ve skute\u010dnosti se protokol neujal a nebyl roz\u0161\u00ed\u0159en. <\/p>\n

K\u00f3d DCCP v j\u00e1d\u0159e z\u016fst\u00e1v\u00e1 bez podpory u\u017e p\u011bt let a zm\u011bny v posledn\u00edch letech byly omezeny na opravy zp\u016fsoben\u00e9 refaktoringem API j\u00e1dra. P\u0159ed n\u011bkolika lety byla v r\u00e1mci projektu Multipath DCCP u\u010din\u011bna snaha o rozvoj protokolu DCCP v j\u00e1d\u0159e, ale \u010d\u00e1st k\u00f3du tohoto projektu z\u016fst\u00e1v\u00e1 propriet\u00e1rn\u00ed. V\u00fdvoj\u00e1\u0159 Multipath DCCP pl\u00e1noval otev\u0159\u00edt k\u00f3d propriet\u00e1rn\u00edch \u010d\u00e1st\u00ed, p\u0159edat nahromad\u011bn\u00e9 zm\u011bny do hlavn\u00edho j\u00e1dra a p\u0159evz\u00edt roli spr\u00e1vce DCCP v j\u00e1d\u0159e Linux, ale ji\u017e n\u011bkolik let se neozval. <\/p>\n

Odstran\u011bn\u00ed DCCP z j\u00e1dra Linux odstran\u00ed p\u0159ek\u00e1\u017eky, kter\u00e9 br\u00e1n\u00ed p\u0159epracov\u00e1n\u00ed datov\u00e9 struktury inet_connection_sock pro zv\u00fd\u0161en\u00ed efektivity pr\u00e1ce z\u00e1sobn\u00edku TCP. V sou\u010dasnosti je struktura inet_connection_sock spole\u010dn\u011b pou\u017e\u00edv\u00e1na v TCP a DCCP, co\u017e neumo\u017e\u0148uje realizaci n\u011bkter\u00fdch optimalizac\u00ed pro TCP bez p\u0159epracov\u00e1n\u00ed k\u00f3du DCCP. Konkr\u00e9tn\u011b p\u0159epracov\u00e1n\u00ed struktury inet_connection_sock umo\u017en\u00ed efektivn\u011bji vyu\u017e\u00edvat procesorovou cache p\u0159i zrychlen\u00e9m zpracov\u00e1n\u00ed paket\u016f pro ji\u017e nav\u00e1zan\u00e9 TCP spojen\u00ed (TCP fastpath).
\n
Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412 \u0441\u043e\u0441\u0442\u0430\u0432 \u0432\u0435\u0442\u043a\u0438 net-next, \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u043d\u0430\u043a\u0430\u043f\u043b\u0438\u0432\u0430\u044e\u0442\u0441\u044f \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u0434\u043b\u044f \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0438 \u0432 \u0441\u043e\u0441\u0442\u0430\u0432 \u0431\u0443\u0434\u0443\u0449\u0435\u0433\u043e \u0432\u044b\u043f\u0443\u0441\u043a\u0430 \u044f\u0434\u0440\u0430 Linux 6.16, \u043f\u0440\u0438\u043d\u044f\u0442\u043e \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0435, \u0443\u0434\u0430\u043b\u044f\u044e\u0449\u0435\u0435 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0443 \u0441\u0435\u0442\u0435\u0432\u043e\u0433\u043e \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 DCCP (Datagram Congestion Control Protocol). \u041f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 netfilter-\u043c\u043e\u0434\u0443\u043b\u0435\u0439 \u0434\u043b\u044f \u0444\u0438\u043b\u044c\u0442\u0440\u0430\u0446\u0438\u0438 \u043f\u0430\u043a\u0435\u0442\u043e\u0432 DCCP \u0441\u043e\u0445\u0440\u0430\u043d\u0435\u043d\u0430. \u041f\u0440\u043e\u0442\u043e\u043a\u043e\u043b DCCP \u0431\u044b\u043b \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d \u0438 \u043f\u0440\u0438\u043d\u044f\u0442 \u0432 \u0441\u043e\u0441\u0442\u0430\u0432 \u044f\u0434\u0440\u0430 \u0432 2006 \u0433\u043e\u0434\u0443. \u041f\u0440\u0435\u0434\u043f\u043e\u043b\u0430\u0433\u0430\u043b\u043e\u0441\u044c, \u0447\u0442\u043e DCCP \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442 \u043f\u043e\u0432\u044b\u0441\u0438\u0442\u044c \u044d\u0444\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u043e\u0441\u0442\u044c \u043f\u043e\u0442\u043e\u043a\u043e\u0432\u043e\u0433\u043e \u0432\u0435\u0449\u0430\u043d\u0438\u044f […]<\/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-123598","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\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\udd47 V j\u00e1d\u0159e Linux 6.16 bude ukon\u010dena podpora protokolu DCCP | ProHoster","description":"Do v\u011btve net-next, ve kter\u00e9 se shroma\u017e\u010fuj\u00ed zm\u011bny pro budouc\u00ed vyd\u00e1n\u00ed j\u00e1dra Linux 6.16, bylo p\u0159ijato opat\u0159en\u00ed, kter\u00e9 odstra\u0148uje podporu s\u00ed\u0165ov\u00e9ho protokolu DCCP (Datagram Congestion Control 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