{"id":101398,"date":"2021-09-24T22:22:40","date_gmt":"2021-09-24T20:22:40","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-nabora-bazovyh-sistemnyh-utilit-gnu-coreutils-9-0"},"modified":"2021-09-24T22:22:40","modified_gmt":"2021-09-24T20:22:40","slug":"vypusk-nabora-bazovyh-sistemnyh-utilit-gnu-coreutils-9-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pl\/blog\/news\/vypusk-nabora-bazovyh-sistemnyh-utilit-gnu-coreutils-9-0","title":{"rendered":"Wydanie zestawu podstawowych narz\u0119dzi systemowych GNU Coreutils 9.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Dost\u0119pna jest stabilna wersja zestawu podstawowych narz\u0119dzi systemowych GNU Coreutils 9.0, w sk\u0142ad kt\u00f3rego wchodz\u0105 programy takie jak sort, cat, chmod, chown, chroot, cp, date, dd, echo, hostname, id, ln, ls itd. Znacz\u0105ca zmiana numeru wersji jest wynikiem zmian w zachowaniu niekt\u00f3rych narz\u0119dzi.    <\/p>\n<p>Kluczowe zmiany:  <\/p>\n<ul>\n<li class=\"l\"> W narz\u0119dziach cp i install domy\u015blnie podczas kopiowania wykorzystuje si\u0119 tryb copy-on-write (u\u017cycie ioctl ficlone do wsp\u00f3\u0142dzielenia danych w r\u00f3\u017cnych plikach zamiast tworzenia pe\u0142nego klona).\n<li class=\"l\"> W narz\u0119dziach cp, install i mv wykorzystano mechanizmy przyspieszaj\u0105ce operacje kopiowania (u\u017cycie systemowego wywo\u0142ania copy_file_range do wykonywania kopiowania tylko po stronie j\u0105dra, bez przesy\u0142ania danych do pami\u0119ci procesu w przestrzeni u\u017cytkownika).\n<li class=\"l\"> W narz\u0119dziach cp, install i mv do okre\u015blenia luk w plikach wykorzystano prostsze i przeno\u015bne wywo\u0142anie lseek+SEEK_HOLE zamiast ioctl+FS_IOC_FIEMAP.\n<li class=\"l\"> W narz\u0119dziu wc do przyspieszenia liczenia linii wykorzystano instrukcje AVX2. Przy u\u017cyciu tej optymalizacji pr\u0119dko\u015b\u0107 wc wzros\u0142a pi\u0119ciokrotnie.\n<li class=\"l\"> Do programu cksum dodano opcj\u0119 &#171;-a&#187; (&#8212;algorithm) do wyboru algorytmu haszuj\u0105cego. Aby przyspieszy\u0107 obliczanie sum kontrolnych w narz\u0119dziu cksum, wykorzystano instrukcje pclmul w trybie &#171;&#8212;algorithm=crc&#187;, co pozwoli\u0142o przyspieszy\u0107 obliczenia nawet 8 razy. W systemach bez wsparcia dla pclmul tryb crc przyspiesza obliczenia 4-krotnie. Pozosta\u0142e algorytmy haszuj\u0105ce (sum, md5sum, b2sum, sha*sum, sm3 itp.) zrealizowane s\u0105 poprzez wywo\u0142anie funkcji libcrypto.\n<li class=\"l\"> W narz\u0119dziach md5sum, cksum, sha*sum i b2sum, przy u\u017cyciu flagi &#171;&#8212;check&#187;, dozwolona jest obecno\u015b\u0107 sekwencji CRLF na ko\u0144cu wiersza z sum\u0105 kontroln\u0105. W &#171;cksum &#8212;check&#187; zapewniono automatyczne okre\u015blenie u\u017cywanego algorytmu haszuj\u0105cego.\n<li class=\"l\"> W narz\u0119dziu ls dodano opcj\u0119 &#171;&#8212;sort=width&#187; do sortowania wed\u0142ug d\u0142ugo\u015bci nazwy pliku oraz opcj\u0119 &#171;&#8212;zero&#187; do zako\u0144czenia ka\u017cdego wiersza zerowym znakiem. Przywr\u00f3cono star\u0105 funkcjonalno\u015b\u0107, kt\u00f3ra skutkuje wy\u015bwietleniem pustego katalogu zamiast b\u0142\u0119du w przypadku przetwarzania usuni\u0119tego katalogu.\n<li class=\"l\"> W narz\u0119dziu df zrealizowano okre\u015blenie sieciowych system\u00f3w plik\u00f3w acfs, coda, fhgfs, gpfs, ibrix, ocfs2 i vxfs.\n<li class=\"l\"> W narz\u0119dziach stat i tail dodano wsparcie dla typ\u00f3w system\u00f3w plik\u00f3w &#171;devmem&#187;, &#171;exfat&#187;, &#171;secretmem&#187;, &#171;vboxsf&#187; i &#171;zonefs&#187;. Dla &#171;vboxsf&#187; do \u015bledzenia zmian w &#171;tail -f&#187; wykorzystano polling, a dla pozosta\u0142ych &#8212; inotify.  <\/ul>\n<p>\u0179r\u00f3d\u0142o: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=55865\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0414\u043e\u0441\u0442\u0443\u043f\u043d\u0430 \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u0430\u044f \u0432\u0435\u0440\u0441\u0438\u044f \u043d\u0430\u0431\u043e\u0440\u0430 \u0431\u0430\u0437\u043e\u0432\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c\u043d\u044b\u0445 \u0443\u0442\u0438\u043b\u0438\u0442 GNU Coreutils 9.0, \u0432 \u0441\u043e\u0441\u0442\u0430\u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u0433\u043e \u0432\u0445\u043e\u0434\u044f\u0442 \u0442\u0430\u043a\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u044b, \u043a\u0430\u043a sort, cat, chmod, chown, chroot, cp, date, dd, echo, hostname, id, ln, ls \u0438 \u0442.\u0434. \u0417\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u0430\u044f \u0441\u043c\u0435\u043d\u0430 \u043d\u043e\u043c\u0435\u0440\u0430 \u0432\u0435\u0440\u0441\u0438\u0438 \u043e\u0431\u044a\u044f\u0441\u043d\u044f\u0435\u0442\u0441\u044f \u043d\u0430\u043b\u0438\u0447\u0438\u0435\u043c \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439 \u0432 \u043f\u043e\u0432\u0435\u0434\u0435\u043d\u0438\u0438 \u043d\u0435\u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0443\u0442\u0438\u043b\u0438\u0442. \u041a\u043b\u044e\u0447\u0435\u0432\u044b\u0435 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f: \u0412 \u0443\u0442\u0438\u043b\u0438\u0442\u0430\u0445 cp \u0438 install \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u043f\u0440\u0438 \u043a\u043e\u043f\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0438 \u0437\u0430\u0434\u0435\u0439\u0441\u0442\u0432\u043e\u0432\u0430\u043d [&hellip;]<\/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-101398","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0414\u043e\u0441\u0442\u0443\u043f\u043d\u0430 \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u0430\u044f \u0432\u0435\u0440\u0441\u0438\u044f \u043d\u0430\u0431\u043e\u0440\u0430 \u0431\u0430\u0437\u043e\u0432\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c\u043d\u044b\u0445 \u0443\u0442\u0438\u043b\u0438\u0442 GNU Coreutils 9.0, \u0432 \u0441\u043e\u0441\u0442\u0430\u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u0433\u043e \u0432\u0445\u043e\u0434\u044f\u0442 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