{"id":120511,"date":"2024-11-06T19:09:06","date_gmt":"2024-11-06T17:09:06","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/arhitektura-nabora-komand-bpf-poluchila-status-predlozhennogo-standarta"},"modified":"2024-11-06T19:09:06","modified_gmt":"2024-11-06T17:09:06","slug":"arhitektura-nabora-komand-bpf-poluchila-status-predlozhennogo-standarta","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/arhitektura-nabora-komand-bpf-poluchila-status-predlozhennogo-standarta","title":{"rendered":"BPF k\u00e4su arhitektuur sai ettepaneku standardi staatus","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

IETF (Internet Engineering Task Force), mis tegeleb interneti protokollide ja arhitektuuri arendamisega, on l\u00f5petanud BPF k\u00e4skude komplekti arhitektuuri jaoks RFCi koostamise ja avaldanud sellega seotud spetsifikatsiooni, mille identifikaator on RFC 9669. RFC on saanud \u201eEesm\u00e4rgiks pakutud standardi\u201c staatuse, p\u00e4rast mida alustatakse t\u00f6\u00f6d RFC staatuse m\u00e4\u00e4ramiseks mustandstandardiks (Draft Standard), mis sisuliselt t\u00e4hendab t\u00e4ielikku stabiliseerimist ja k\u00f5igi esitatud m\u00e4rkuste arvessev\u00f5tmist. <\/p>\n

Avaldatud spetsifikatsioon kirjeldab BPF bytekoodi k\u00e4sutuste komplekti ja madala taseme virtuaalmasinat, mida kasutatakse Linuxi eBPF kernelialases alams\u00fcsteemis v\u00e4liste t\u00f6\u00f6tlejate t\u00e4itmiseks, mis suudavad reaalajas muuta s\u00fcsteemi k\u00e4itumist ilma kernelikoodi muutmiseta. Essentsiaalselt rakendab eBPF lihtsat virtuaalset protsessorit koos oma registrite komplekti, RISC-taoliste k\u00e4suridade, staki ja k\u00e4su loenduri. BPF programmid luuakse tavaliselt C keele alamhulgal ja kompileeritakse seej\u00e4rel bytekoodiks, mis on valmis t\u00e4itmiseks. virtuaalmasinas<\/a>. Virtuaalmasin v\u00f5ib BPF programmaid k\u00e4itada nii t\u00f5lgendamise kui ka JIT-kompileerimise abil, et t\u00f5lkida bajtkoodi otse masinainstruktsioonideks. <\/p>\n

Oletatakse, et BPF k\u00e4skude komplekti arhitektuuri standardimine annab t\u00f5uke kolmandate osapoolte rakenduste loomisele, mis on \u00fchilduvad eBPF virtuaalmasinaga ja suudavad k\u00e4itada Linuxi kernelile kirjutatud BPF programme. Selliste arendamisega virtuaalmasinad<\/a> tegelevad m\u00f5ned v\u00f5rgukaardi tootjad, kes arendavad seadmeid BPF-v\u00f5rgupakettide protsessorite kiirendamiseks. Idee seisneb XDP (eXpress Data Path) alams\u00fcsteemi v\u00f5imaluste laiendamises, et k\u00e4itada BPF programme mitte ainult v\u00f5rgudraiveri tasandil, vaid ka v\u00f5rgu kaardi poolel. <\/p>\n

N\u00e4iteks on ettev\u00f5te Netronome lisanud BPF toe Netronome Agilio CX SmartNIC adapterile ning pakkunud v\u00e4lja kogumi universaalsete BPF-programmide n\u00e4idiseid, mida saab k\u00e4itada mitte ainult CPU abil tuumas koos mis tahes XDP-\u00fchilduva draiveriga, vaid ka v\u00f5rguadapteri k\u00fcljel. See v\u00f5imaldab teha otsuseid pakettide filtreerimise, muutmise v\u00f5i suunamise kohta, kulutamata CPU ressursse. Eraldi arendatakse tehnoloogiat XRP (eXpress Resubmission Path), mis v\u00f5imaldab BPF-i kasutada teatud NVMe salvestusseadmestiku operatsioonide, n\u00e4iteks indeksite t\u00f6\u00f6tlemise ja andmete kogumise, viimiseks NVMe draiveri tasemele v\u00f5i v\u00e4listesse seadmetesse. <\/p>\n

On m\u00e4rgitud, et selliste v\u00f5imaluste laiemat juurutamist takistavad endiselt riskid, mis on seotud \u00fchilduvuse rikkumise ja vajadusega j\u00e4lgida eBPF-i seisundit tuumas. Nende riskide t\u00f5ttu on m\u00f5ned tootjad j\u00e4tnud BPF-i riistvarakiirenduse rakendamise oma seadmetes standardi v\u00e4ljat\u00f6\u00f6tamiseni.
\n
Allikas: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041a\u043e\u043c\u0438\u0442\u0435\u0442 IETF (Internet Engineering Task Force), \u0437\u0430\u043d\u0438\u043c\u0430\u044e\u0449\u0438\u0439\u0441\u044f \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0435\u043c \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u043e\u0432 \u0438 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b \u0438\u043d\u0442\u0435\u0440\u043d\u0435\u0442\u0430, \u0437\u0430\u0432\u0435\u0440\u0448\u0438\u043b \u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 RFC \u0434\u043b\u044f \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b \u043d\u0430\u0431\u043e\u0440\u0430 \u043a\u043e\u043c\u0430\u043d\u0434 BPF \u0438 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u0443\u044e \u0441 \u043d\u0438\u043c \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044e \u043f\u043e\u0434 \u0438\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u043e\u043c RFC 9669. RFC \u043f\u043e\u043b\u0443\u0447\u0438\u043b \u0441\u0442\u0430\u0442\u0443\u0441 «\u041f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d\u043d\u043e\u0433\u043e \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u0430», \u043f\u043e\u0441\u043b\u0435 \u0447\u0435\u0433\u043e \u043d\u0430\u0447\u043d\u0451\u0442\u0441\u044f \u0440\u0430\u0431\u043e\u0442\u0430 \u043f\u043e \u043f\u0440\u0438\u0434\u0430\u043d\u0438\u044e RFC \u0441\u0442\u0430\u0442\u0443\u0441\u0430 \u0447\u0435\u0440\u043d\u043e\u0432\u043e\u0433\u043e \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u0430 (Draft Standard), \u0444\u0430\u043a\u0442\u0438\u0447\u0435\u0441\u043a\u0438 \u043e\u0437\u043d\u0430\u0447\u0430\u044e\u0449\u0435\u0433\u043e \u043f\u043e\u043b\u043d\u0443\u044e \u0441\u0442\u0430\u0431\u0438\u043b\u0438\u0437\u0430\u0446\u0438\u044e \u0438 \u0443\u0447\u0451\u0442 \u0432\u0441\u0435\u0445 \u0432\u044b\u0441\u043a\u0430\u0437\u0430\u043d\u043d\u044b\u0445 […]<\/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-120511","post","type-post","status-publish","format-standard","hentry","category-novosti-interneta"],"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\udd47BPF-i k\u00e4suarkitektuur sai ettepaneku standardi staatuse | ProHoster","description":"IETF (Internet Engineering Task Force), mis tegeleb interneti protokollide ja arhitektuuri arendamisega, on l\u00f5petanud BPF k\u00e4suarhitektuuri RFC koostamise ja avaldanud sellega seotud spetsifikatsiooni identifikaatoriga RFC 9669. 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