{"id":95274,"date":"2020-09-27T13:42:11","date_gmt":"2020-09-27T11:42:11","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-nochnyh-sborkah-firefox-zametno-uvelichena-proizvoditelnost-jit-kompilyaczii"},"modified":"2020-09-27T13:42:11","modified_gmt":"2020-09-27T11:42:11","slug":"v-nochnyh-sborkah-firefox-zametno-uvelichena-proizvoditelnost-jit-kompilyaczii","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/v-nochnyh-sborkah-firefox-zametno-uvelichena-proizvoditelnost-jit-kompilyaczii","title":{"rendered":"V no\u010dn\u00edch sestaven\u00edch Firefoxu je v\u00fdrazn\u011b zv\u00fd\u0161ena v\u00fdkonnost JIT kompilace","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>V <noindex><a rel=\"nofollow\" href=\"https:\/\/nightly.mozilla.org\/\">no\u010dn\u00ed sestaven\u00ed<\/a><\/noindex> Firefox <noindex><a rel=\"nofollow\" href=\"https:\/\/groups.google.com\/g\/mozilla.dev.platform\/c\/1PHhxBxSehQ\/m\/V-tLMPftBQAJ\">bylo zapnuto<\/a><\/noindex> aktualizovan\u00fd JIT kompil\u00e1tor, <noindex><a rel=\"nofollow\" href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=1613592\">vyv\u00edjen\u00fd<\/a><\/noindex> pod k\u00f3dov\u00fdm jm\u00e9nem WarpBuilder. K aktivaci nov\u00e9ho JIT v about:config je navr\u017eena mo\u017enost &#171;javascript.options.warp&#187;.<br \/>\nJe t\u0159eba poznamenat, \u017ee WarpBuilder je pouze prvn\u00edm krokem k zahrnut\u00ed nov\u00fdch optimalizac\u00ed do prohl\u00ed\u017ee\u010de, kter\u00e9 se pl\u00e1nuj\u00ed realizovat b\u011bhem n\u00e1sleduj\u00edc\u00edho roku.<\/p>\n<p>Nov\u00fd JIT umo\u017e\u0148uje zv\u00fd\u0161it v\u00fdkon JavaScriptov\u00e9ho enginu SpiderMonkey d\u00edky zkr\u00e1cen\u00ed intern\u00edch informac\u00ed o typech sledovan\u00fdch uvnit\u0159 enginu a aplikaci techniky mezipam\u011bti mezik\u00f3du (CacheIR), d\u0159\u00edve <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51727\">navrhovan\u00e9<\/a><\/noindex> v &#171;baseline&#187; interpretovi bytecode, kter\u00fd zauj\u00edm\u00e1 meziprostor mezi b\u011b\u017en\u00fdm interpretem a p\u0159edkompil\u00e1torem JIT. Uveden\u00e9 zm\u011bny umo\u017enily v\u00fdrazn\u011b zjednodu\u0161it architekturu JIT, zv\u00fd\u0161it odezvu, zkr\u00e1tit dobu na\u010d\u00edt\u00e1n\u00ed str\u00e1nky a sn\u00ed\u017eit spot\u0159ebu pam\u011bti.<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=1613592\">Je poznamen\u00e1no<\/a><\/noindex>, co\u017e nov\u00fd JIT umo\u017enil vy\u0159e\u0161it mnoho probl\u00e9m\u016f star\u00e9ho JIT IonBuilder, jako jsou:<\/p>\n<ul>\n<li class=\"l\"> Slo\u017eitost implementace a potenci\u00e1ln\u00ed bezpe\u010dnostn\u00ed probl\u00e9my;\n<li class=\"l\"> Dal\u0161\u00ed re\u017eijn\u00ed n\u00e1klady na k\u00f3d Baseline\/C++;\n<li class=\"l\"> P\u0159\u00edli\u0161n\u00e1 specializace, vedouc\u00ed k zbyte\u010dn\u00fdm rekompilac\u00edm;\n<li class=\"l\"> Tvorba mezik\u00f3du <noindex><a rel=\"nofollow\" href=\"https:\/\/wiki.mozilla.org\/IonMonkey\/MIR\">MIR<\/a><\/noindex>  (Middle-level IR) v hlavn\u00edm vl\u00e1knu (v WarpBuilderu je hlavn\u00ed sestaven\u00ed mezik\u00f3du vy\u010dlen\u011bno do samostatn\u00e9ho vl\u00e1kna);\n<li class=\"l\"> Dal\u0161\u00ed spot\u0159eba pam\u011bti na uchov\u00e1v\u00e1n\u00ed dat o typech a skupin\u00e1ch objekt\u016f (ObjectGroups).\n<\/ul>\n<p>V pr\u016fm\u011bru p\u0159i testech hodnot\u00edc\u00edch v\u00fdkon na z\u00e1klad\u011b vizu\u00e1ln\u00edch metrik, se p\u0159i pou\u017e\u00edv\u00e1n\u00ed WarpBuilderu pozoruje zrychlen\u00ed o 5-15%. Rychlost testu Speedometer se zv\u00fd\u0161ila o 10%. Testov\u00e1n\u00ed na re\u00e1ln\u00fdch str\u00e1nk\u00e1ch uk\u00e1zalo zkr\u00e1cen\u00ed doby na\u010d\u00edt\u00e1n\u00ed Google Docs o <noindex><a rel=\"nofollow\" href=\"https:\/\/mzl.la\/3cp6dAs\">20%<\/a><\/noindex>, ukazatel <noindex><a rel=\"nofollow\" href=\"https:\/\/web.dev\/speed-index\/\">SpeedIndex<\/a><\/noindex> se p\u0159i otev\u0159en\u00ed sekce Android na Redditu zlep\u0161il o <noindex><a rel=\"nofollow\" href=\"https:\/\/mzl.la\/2RUWdp8\">13%<\/a><\/noindex>, pdfpaint za\u010dal fungovat rychleji o <noindex><a rel=\"nofollow\" href=\"https:\/\/mzl.la\/2HtXb9W\">18%<\/a><\/noindex>. Spot\u0159eba pam\u011bti v testu <noindex><a rel=\"nofollow\" href=\"https:\/\/mzl.la\/3j2VwGb\">tp6<\/a><\/noindex> se sn\u00ed\u017eila o 8%. <noindex><a rel=\"nofollow\" href=\"https:\/\/mzl.la\/3kLbhSM\">Hodnoty<\/a><\/noindex> statistiky v n\u00e1stroj\u00edch pro v\u00fdvoj\u00e1\u0159e (devtools perf) tak\u00e9 prok\u00e1zaly sn\u00ed\u017een\u00ed spot\u0159eby pam\u011bti o 8%.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Zdroj: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=53789\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u043d\u043e\u0447\u043d\u044b\u0435 \u0441\u0431\u043e\u0440\u043a\u0438 Firefox \u0432\u043a\u043b\u044e\u0447\u0451\u043d \u043e\u0431\u043d\u043e\u0432\u043b\u0451\u043d\u043d\u044b\u0439 JIT-\u043a\u043e\u043c\u043f\u0438\u043b\u044f\u0442\u043e\u0440, 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\u043f\u043b\u0430\u043d\u0438\u0440\u0443\u0435\u0442\u0441\u044f \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u0442\u044c \u0432 \u0442\u0435\u0447\u0435\u043d\u0438\u0435 \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0435\u0433\u043e \u0433\u043e\u0434\u0430. \u041d\u043e\u0432\u044b\u0439 JIT \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u043f\u043e\u0434\u043d\u044f\u0442\u044c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u044c JavaScript-\u0434\u0432\u0438\u0436\u043a\u0430 SpiderMonkey \u0437\u0430 \u0441\u0447\u0451\u0442 \u0441\u043e\u043a\u0440\u0430\u0449\u0435\u043d\u0438\u044f \u0432\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u0435\u0439 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438 [&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-95274","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412 \u043d\u043e\u0447\u043d\u044b\u0435 \u0441\u0431\u043e\u0440\u043a\u0438 Firefox\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/cs\/blog\/news\/v-nochnyh-sborkah-firefox-zametno-uvelichena-proizvoditelnost-jit-kompilyaczii\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.3\" \/>\n\t\t<meta property=\"og:locale\" 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