{"id":114919,"date":"2024-04-08T18:06:42","date_gmt":"2024-04-08T16:06:45","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/oczenka-vliyaniya-optimizaczij-v-gnome-46-na-effektivnost-raboty-emulyatorov-terminala"},"modified":"2024-04-08T18:06:42","modified_gmt":"2024-04-08T16:06:45","slug":"oczenka-vliyaniya-optimizaczij-v-gnome-46-na-effektivnost-raboty-emulyatorov-terminala","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/oczenka-vliyaniya-optimizaczij-v-gnome-46-na-effektivnost-raboty-emulyatorov-terminala","title":{"rendered":"Hodnocen\u00ed vlivu optimalizac\u00ed v GNOME 46 na efektivitu pr\u00e1ce emul\u00e1tor\u016f termin\u00e1lu","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Byly zve\u0159ejn\u011bny v\u00fdsledky kontroly efektivity optimalizac\u00ed p\u0159idan\u00fdch do knihovny VTE (Virtual Terminal library) a zahrnut\u00fdch v verzi GNOME 46. P\u0159i testov\u00e1n\u00ed byla m\u011b\u0159ena odezva rozhran\u00ed v emul\u00e1torech termin\u00e1lu Alacritty, Console (GTK 4), GNOME Terminal (GTK 3 a 4) a VTE Test App (uk\u00e1zka z repozit\u00e1\u0159e VTE), spu\u0161t\u011bn\u00fdch na Fedora 39 s GNOME 45 a na Fedora 40-beta s GNOME 46. Aplikace Alacritty nepou\u017e\u00edv\u00e1 knihovnu VTE a byla vybr\u00e1na jako etalon, proto\u017ee, soud\u011b podle p\u0159edchoz\u00edch test\u016f, je jedn\u00edm z nejrychlej\u0161\u00edch emul\u00e1tor\u016f termin\u00e1l\u016f. K m\u011b\u0159en\u00ed byl pou\u017eit hardwarov\u00fd sn\u00edma\u010d zalo\u017een\u00fd na desce Teensy, kter\u00fd m\u011b\u0159il dobu mezi stisknut\u00edm tla\u010d\u00edtka a zobrazen\u00edm informac\u00ed na obrazovce. <\/p>\n

Knihovna VTE poskytuje hotov\u00fd widget GTK, pou\u017e\u00edvan\u00fd v r\u016fzn\u00fdch emul\u00e1torech termin\u00e1lu pro GNOME, mezi kter\u00e9 pat\u0159\u00ed GNOME Terminal, Console, Black Box, Tilix, Terminator a Ptyxis. Ve verzi GNOME 46 byly v VTE z\u00e1sadn\u011b p\u0159epracov\u00e1ny vnit\u0159n\u00ed struktury, co\u017e, podle hodnocen\u00ed v\u00fdvoj\u00e1\u0159\u016f, vedlo ke zrychlen\u00ed operac\u00ed, jeho\u017e p\u0159\u00edr\u016fstek v\u00fdkonu dosahoval b\u011bhem test\u016f a\u017e 40%. Z praktick\u00e9ho hlediska optimalizace vedla ke sn\u00ed\u017een\u00ed latence p\u0159i vykreslov\u00e1n\u00ed v konfigurac\u00edch s GTK 4. D\u0159\u00edve byly latence p\u0159i zad\u00e1v\u00e1n\u00ed z kl\u00e1vesnice v Console a GNOME Terminal znateln\u00e9, co\u017e odrazovalo mnoho u\u017eivatel\u016f od pou\u017e\u00edv\u00e1n\u00ed standardn\u00edch emul\u00e1tor\u016f termin\u00e1l\u016f pro GNOME. P\u0159i pou\u017eit\u00ed verze VTE 0.76 byl tento probl\u00e9m vy\u0159e\u0161en. <\/p>\n

Proveden\u00e9 nez\u00e1visl\u00e9 testov\u00e1n\u00ed potvrdilo v\u00fdrazn\u00e9 sn\u00ed\u017een\u00ed latence zad\u00e1v\u00e1n\u00ed dat v aplikac\u00edch zalo\u017een\u00fdch na VTE, kter\u00e9 je patrn\u00e9 nejen v jednoduch\u00fdch, ale i ve slo\u017eit\u00fdch sc\u00e9n\u00e1\u0159\u00edch pou\u017eit\u00ed termin\u00e1l\u016f. Nap\u0159\u00edklad p\u0159i pou\u017e\u00edv\u00e1n\u00ed neovim se latence zad\u00e1v\u00e1n\u00ed emul\u00e1tor\u016f termin\u00e1l\u016f na b\u00e1zi VTE zkr\u00e1tila na \u00farove\u0148 nejrychlej\u0161\u00edho termin\u00e1lu Alacritty. V testu spojen\u00e9m s pou\u017eit\u00edm utility «cat» se reak\u010dn\u00ed doba na stisk kl\u00e1ves v Console a GNOME Termin\u00e1lu sn\u00ed\u017eila z 40 na 12 ms, zat\u00edmco v testu posouv\u00e1n\u00ed v neovim se sn\u00ed\u017eila z 45 na 23 ms.

\"Hodnocen\u00ed<\/center>
\"Hodnocen\u00ed<\/center>
\"Hodnocen\u00ed<\/center> <\/p>\n

Zrychlen\u00ed pr\u00e1ce p\u0159i pou\u017e\u00edv\u00e1n\u00ed nov\u00e9 verze knihovny VTE bylo tak\u00e9 zaznamen\u00e1no v testovac\u00edm souboru vtebench, kter\u00fd m\u011b\u0159\u00ed \u010das \u010dten\u00ed z za\u0159\u00edzen\u00ed PTY a v\u00fdkon parsov\u00e1n\u00ed (testy rychlosti rolov\u00e1n\u00ed a pohybu kurzoru), nikoli zpo\u017ed\u011bn\u00ed vstupu. V tomto ohledu v\u011bt\u0161ina test\u016f vtebench ukazuje, \u017ee termin\u00e1l Alacritty p\u0159ekon\u00e1v\u00e1 Console a GNOME Terminal, ale odstup posledn\u00edch ji\u017e nen\u00ed tak v\u00fdrazn\u00fd jako d\u0159\u00edve. \u010c\u00e1ste\u010dn\u011b je zaost\u00e1v\u00e1n\u00ed GNOME Terminal zp\u016fsobeno re\u017eijn\u00edmi n\u00e1klady na podporu p\u0159\u00edstupov\u00fdch technologi\u00ed pro osoby se zdravotn\u00edm posti\u017een\u00edm.

\"Hodnocen\u00ed<\/center>
\n
Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u044b \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u044b \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u044d\u0444\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u043e\u0441\u0442\u0438 \u043e\u043f\u0442\u0438\u043c\u0438\u0437\u0430\u0446\u0438\u0439, \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u043d\u044b\u0445 \u0432 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0443 VTE (Virtual TErminal library) \u0438 \u0432\u043e\u0448\u0435\u0434\u0448\u0438\u0445 \u0432 \u0441\u043e\u0441\u0442\u0430\u0432 \u0440\u0435\u043b\u0438\u0437\u0430 GNOME 46. \u041f\u0440\u0438 \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0438 \u0438\u0437\u043c\u0435\u0440\u0435\u043d\u0430 \u043e\u0442\u0437\u044b\u0432\u0447\u0438\u0432\u043e\u0441\u0442\u044c \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u0430 \u0432 \u044d\u043c\u0443\u043b\u044f\u0442\u043e\u0440\u0430\u0445 \u0442\u0435\u0440\u043c\u0438\u043d\u0430\u043b\u0430 Alacritty, Console (GTK 4), GNOME Terminal (GTK 3 \u0438 4) \u0438 VTE Test App (\u043f\u0440\u0438\u043c\u0435\u0440 \u0438\u0437 \u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u044f VTE), \u043f\u0440\u0438 \u0438\u0445 \u0437\u0430\u043f\u0443\u0441\u043a\u0435 \u0432 Fedora 39 \u0441 GNOME 45 \u0438 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":114920,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-114919","post","type-post","status-publish","format-standard","has-post-thumbnail","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\udd47Hodnocen\u00ed vlivu 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