{"id":101190,"date":"2021-09-04T10:23:03","date_gmt":"2021-09-04T08:23:03","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/prekrashhenie-razrabotki-planirovshhika-zadach-muqss-i-nabora-patchej-ck-dlya-yadra-linux"},"modified":"2021-09-04T10:23:03","modified_gmt":"2021-09-04T08:23:03","slug":"prekrashhenie-razrabotki-planirovshhika-zadach-muqss-i-nabora-patchej-ck-dlya-yadra-linux","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/prekrashhenie-razrabotki-planirovshhika-zadach-muqss-i-nabora-patchej-ck-dlya-yadra-linux","title":{"rendered":"Ukon\u010den\u00ed v\u00fdvoje pl\u00e1nova\u010de \u00faloh MuQSS a sady z\u00e1plat «-ck» pro j\u00e1dro Linux","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Con Kolivas varoval p\u0159ed z\u00e1m\u011brem ukon\u010dit v\u00fdvoj sv\u00fdch projekt\u016f pro j\u00e1dro Linux, zam\u011b\u0159en\u00fdch na zvy\u0161ov\u00e1n\u00ed odezvy a interaktivity u\u017eivatelsk\u00fdch \u00faloh. V\u00fdvoj pl\u00e1nova\u010de \u00faloh MuQSS (Multiple Queue Skiplist Scheduler, d\u0159\u00edve zn\u00e1m\u00fd jako BFS) bude pozastaven a adaptace sady patch\u016f «-ck» pro nov\u00e9 verze j\u00e1dra bude ukon\u010dena. <\/p>\n

Jako d\u016fvod je uvedena ztr\u00e1ta z\u00e1jmu o v\u00fdvoj pro j\u00e1dro Linux po 20 letech takov\u00e9 \u010dinnosti a nemo\u017enost z\u00edskat zp\u011bt kdysi existuj\u00edc\u00ed motivaci po n\u00e1vratu k l\u00e9ka\u0159sk\u00e9 \u010dinnosti b\u011bhem pandemie Covid19 (Con je vzd\u011bl\u00e1n\u00edm anesteziolog a b\u011bhem pandemie vedl projekt na v\u00fdvoj nov\u00e9ho typu p\u0159\u00edstroj\u016f k um\u011bl\u00e9 ventilaci plic a vyu\u017eit\u00ed 3D tisku pro v\u00fdrobu souvisej\u00edc\u00edch sou\u010d\u00e1stek). <\/p>\n

Je pozoruhodn\u00e9, \u017ee v roce 2007 Con Kolivas ji\u017e ukon\u010dil v\u00fdvoj patch\u016f «-ck» na pozad\u00ed nemo\u017enosti prosadit sv\u00e9 opravy do hlavn\u00edho j\u00e1dra Linuxu, ale pot\u00e9 se k jejich v\u00fdvoji vr\u00e1til. Pokud se Con Kolivas tentokr\u00e1t nepoda\u0159\u00ed naj\u00edt motivaci k pokra\u010dov\u00e1n\u00ed v pr\u00e1ci, vyd\u00e1n\u00ed patch\u016f 5.12-ck1 se stane posledn\u00edm. <\/p>\n

Patche «-ck», krom\u011b pl\u00e1nova\u010de MuQSS, kter\u00fd pokra\u010duje ve v\u00fdvoji projektu BFS, zahrnuj\u00ed r\u016fzn\u00e9 zm\u011bny, kter\u00e9 ovliv\u0148uj\u00ed pr\u00e1ci s pam\u011bt\u00ed, zpracov\u00e1n\u00ed priorit, generov\u00e1n\u00ed p\u0159eru\u0161en\u00ed \u010dasova\u010de a nastaven\u00ed j\u00e1dra. Kl\u00ed\u010dov\u00fdm \u00fakolem patch\u016f je zlep\u0161en\u00ed odezvy aplikac\u00ed na desktopu. Vzhledem k tomu, \u017ee navrhovan\u00e9 zm\u011bny mohou negativn\u011b ovlivnit v\u00fdkon serverov\u00fdch syst\u00e9m\u016f, po\u010d\u00edta\u010d\u016f s vysok\u00fdm po\u010dtem CPU jader a pr\u00e1ci v podm\u00ednk\u00e1ch sou\u010dasn\u00e9ho prov\u00e1d\u011bn\u00ed velk\u00e9ho mno\u017estv\u00ed proces\u016f, mnoho zm\u011bn Kona Kolivase nebylo p\u0159ijato do hlavn\u00edho j\u00e1dra, a tak byl nucen je udr\u017eovat ve form\u011b samostatn\u00e9 sady patch\u016f, kter\u00e9 se p\u0159izp\u016fsobuj\u00ed ka\u017ed\u00e9mu nov\u00e9mu vyd\u00e1n\u00ed j\u00e1dra. <\/p>\n

Posledn\u00ed aktualizac\u00ed v\u011btve «-ck» byla adaptace pro vyd\u00e1n\u00ed j\u00e1dra 5.12. Vyd\u00e1n\u00ed patch\u016f «-ck» pro j\u00e1dro 5.13 bylo p\u0159esko\u010deno a po vyd\u00e1n\u00ed j\u00e1dra 5.14 bylo ozn\u00e1meno z\u00e1m\u011br ukon\u010dit portov\u00e1n\u00ed pro nov\u00e9 verze j\u00e1dra. Je mo\u017en\u00e9, \u017ee relaci spr\u00e1vy patch\u016f p\u0159evezmou projekty Liquorix a Xanmod, kter\u00e9 ji\u017e ve sv\u00fdch variant\u00e1ch j\u00e1dra Linux vyu\u017e\u00edvaj\u00ed prvky z na\u0161\u00ed sady «-ck». <\/p>\n

Kon Kolivas je p\u0159ipraven p\u0159edat \u00fadr\u017ebu patch\u016f jin\u00fdm, ale nev\u011b\u0159\u00ed, \u017ee by to bylo \u00fasp\u011b\u0161n\u00e9 \u0159e\u0161en\u00ed, proto\u017ee v\u0161echny p\u0159edchoz\u00ed pokusy o vytv\u00e1\u0159en\u00ed fork\u016f vedly k probl\u00e9m\u016fm, kter\u00fdm se sna\u017eil vyhnout. Pro u\u017eivatele, kte\u0159\u00ed cht\u011bj\u00ed z\u00edskat maxim\u00e1ln\u00ed u\u017eitek z pou\u017e\u00edv\u00e1n\u00ed hlavn\u00edho j\u00e1dra Linuxu bez portov\u00e1n\u00ed pl\u00e1nova\u010de MuQSS, pova\u017euje Kon Kolivas za nejjednodu\u0161\u0161\u00ed a nejefektivn\u011bj\u0161\u00ed p\u0159enos patch\u016f pro zv\u00fd\u0161en\u00ed frekvence generov\u00e1n\u00ed p\u0159eru\u0161en\u00ed z \u010dasova\u010de (HZ) na 1000 Hz.
\n
Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041a\u043e\u043d \u041a\u043e\u043b\u0438\u0432\u0430\u0441 (Con Kolivas) \u043f\u0440\u0435\u0434\u0443\u043f\u0440\u0435\u0434\u0438\u043b \u043e \u043d\u0430\u043c\u0435\u0440\u0435\u043d\u0438\u0438 \u043f\u0440\u0435\u043a\u0440\u0430\u0442\u0438\u0442\u044c \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0443 \u0441\u0432\u043e\u0438\u0445 \u043f\u0440\u043e\u0435\u043a\u0442\u043e\u0432 \u0434\u043b\u044f \u044f\u0434\u0440\u0430 Linux, \u043d\u0430\u0446\u0435\u043b\u0435\u043d\u043d\u044b\u0445 \u043d\u0430 \u043f\u043e\u0432\u044b\u0448\u0435\u043d\u0438\u0435 \u043e\u0442\u0437\u044b\u0432\u0447\u0438\u0432\u043e\u0441\u0442\u0438 \u0438 \u0438\u043d\u0442\u0435\u0440\u0430\u043a\u0442\u0438\u0432\u043d\u043e\u0441\u0442\u0438 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u0441\u043a\u0438\u0445 \u0437\u0430\u0434\u0430\u0447. \u0412 \u0442\u043e\u043c \u0447\u0438\u0441\u043b\u0435 \u0431\u0443\u0434\u0435\u0442 \u043e\u0441\u0442\u0430\u043d\u043e\u0432\u043b\u0435\u043d\u0430 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0430 \u043f\u043b\u0430\u043d\u0438\u0440\u043e\u0432\u0449\u0438\u043a\u0430 \u043f\u043b\u0430\u043d\u0438\u0440\u043e\u0432\u0449\u0438\u043a\u0430 \u0437\u0430\u0434\u0430\u0447 MuQSS (Multiple Queue Skiplist Scheduler, \u0440\u0430\u043d\u0435\u0435 \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u043b\u0441\u044f \u043f\u043e\u0434 \u0438\u043c\u0435\u043d\u0435\u043c BFS) \u0438 \u043f\u0440\u0435\u043a\u0440\u0430\u0449\u0435\u043d\u0430 \u0430\u0434\u0430\u043f\u0442\u0430\u0446\u0438\u044f \u043d\u0430\u0431\u043e\u0440\u0430 \u043f\u0430\u0442\u0447\u0435\u0439 «-ck» \u0434\u043b\u044f \u043d\u043e\u0432\u044b\u0445 \u0432\u044b\u043f\u0443\u0441\u043a\u043e\u0432 \u044f\u0434\u0440\u0430. \u0412 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u043f\u0440\u0438\u0447\u0438\u043d\u044b \u0443\u043f\u043e\u043c\u0438\u043d\u0430\u0435\u0442\u0441\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-101190","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 Ukon\u010den\u00ed v\u00fdvoje pl\u00e1nova\u010de \u00faloh MuQSS a sady patch\u016f \u201e-ck\u201c pro j\u00e1dro Linux | ProHoster","description":"Kon Kolivas (Con Kolivas) varoval p\u0159ed z\u00e1m\u011brem p\u0159eru\u0161it v\u00fdvoj sv\u00fdch projekt\u016f pro j\u00e1dro Linux, zam\u011b\u0159en\u00fdch na zlep\u0161en\u00ed odezvy a interaktivity u\u017eivatelsk\u00fdch 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