{"id":54747,"date":"2020-01-03T00:00:00","date_gmt":"2020-01-02T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/sravnenie-proizvoditelnosti-http-1-1-http-2-i-http-2-server-push"},"modified":"2020-02-18T14:02:48","modified_gmt":"2020-02-18T11:02:48","slug":"sravnenie-proizvoditelnosti-http-1-1-http-2-i-http-2-server-push","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/sravnenie-proizvoditelnosti-http-1-1-http-2-i-http-2-server-push","title":{"rendered":"HTTP\/1.1, HTTP\/2 ja HTTP\/2 + Server Push j\u00f5udluse v\u00f5rdlus","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Avaldatud<\/a><\/noindex> Tulemused eri ressursside kogumise meetodite j\u00f5udluse uuringust, kasutades serveriga suhtlemiseks protokolle HTTP\/1.1, HTTP\/2 ja HTTP\/2 + Server Push. Uuringus hinnati ka selle m\u00f5ju j\u00f5udlusele, kui taotletavad andmed on brauseris vahem\u00e4lus ja ressursside manipuleerimist rakenduse loogika tasemel (ressursside kokkupanemine \u00fchte JSON-blokki).<\/p>\n

\u0422\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f 25 \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432 \u043f\u043e\u043a\u0430\u0437\u0430\u043b\u043e \u0432 \u0446\u0435\u043b\u043e\u043c \u043f\u0440\u0435\u0434\u0441\u043a\u0430\u0437\u0443\u0435\u043c\u044b\u0435 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u044b — \u0437\u0430\u043c\u0435\u0442\u043d\u043e\u0435 \u043e\u0442\u0441\u0442\u0430\u0432\u0430\u043d\u0438\u0435 \u0437\u0430\u043f\u0440\u043e\u0441\u0430 \u0447\u0435\u0440\u0435\u0437 HTTP\/1.1 \u043f\u0440\u0438 \u043f\u0443\u0441\u0442\u043e\u043c \u043a\u044d\u0448\u0435 \u0438 \u043b\u0438\u0434\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u043e\u0442\u0434\u0430\u0447\u0438 \u0440\u0435\u0441\u0443\u0440\u0441\u043e\u0432 \u043e\u0434\u043d\u0438\u043c \u0431\u043b\u043e\u043a\u043e\u043c (\u0442\u0435\u0441\u0442\u044b \u0441 \u043c\u0435\u0442\u043a\u043e\u0439 «compound»). \u041f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u044c Firefox \u0438 Chrome \u0431\u044b\u043b\u0430 \u043f\u0440\u0438\u043c\u0435\u0440\u043d\u043e \u043d\u0430 \u043e\u0434\u043d\u043e\u043c \u0443\u0440\u043e\u0432\u043d\u0435, \u043d\u043e \u043d\u0430\u043b\u0438\u0447\u0438\u0435 \u0434\u0430\u043d\u043d\u044b\u0445 \u0432 \u043a\u044d\u0448\u0435 \u043d\u0435 \u043f\u0440\u0438\u0432\u0435\u043b\u043e \u043a \u043e\u0436\u0438\u0434\u0430\u0435\u043c\u043e\u043c\u0443 \u0440\u043e\u0441\u0442\u0443 \u044d\u0444\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u043e\u0441\u0442\u0438.<\/p>\n

\"HTTP\/1.1,<\/a><\/noindex><\/center><\/p>\n

Aga 500 p\u00e4ringu t\u00f6\u00f6tlemise test n\u00e4itas, et Chrome j\u00e4i m\u00e4rgatavalt alla Firefoxile, kui edastati suur hulk p\u00e4ringuid, ja Firefox j\u00e4i alla Chrome'ile Server Pushi mehhanismi rakendamisel ning olukordades, kus HTTP\/2 oli kasutuses ja enamik andmeid oli brauseri vahem\u00e4lus. Chrome n\u00e4itas vahem\u00e4lu t\u00f5husamat kasutamist, samas kui Firefox t\u00f5husamat v\u00e4liste p\u00e4ringute t\u00f6\u00f6tlemist.<\/p>\n

\"HTTP\/1.1,<\/a><\/noindex><\/center><\/p>\n

\"HTTP\/1.1,<\/a><\/noindex><\/center><\/p>\n

Testide tulemusena j\u00f5uti j\u00e4reldusele, et HTTP\/2 v\u00f5imaldab t\u00f5husalt t\u00f6\u00f6delda eraldi p\u00e4ringuid suurest ressursside kogumist. Erinevused lihtsate ressursse eraldi edastamise skeemide ja meetodite vahel, kus ressursid koondatakse \u00fchte plokki, ei ole piisavalt olulised, et \u00f5igustada rakenduse poolel t\u00f5sist t\u00f6\u00f6tlemise loogika keerukust ja serverilt<\/a>. Koondamine on m\u00f5ttekas ainult olukordades, kus j\u00f5udlus on k\u00f5rgeim prioriteet. Kui on olulisem lihtsustada loogikat ja pakkuda lihtsat API-t, on m\u00f5ttekas kasutada eraldi ressursside t\u00f6\u00f6tlemist.<\/p>\n

Teine j\u00e4reldus on, et brauseri vahem\u00e4lu kasutamine HTTP\/2 ei avalda m\u00e4rkimisv\u00e4\u00e4rset m\u00f5ju p\u00e4ringute t\u00f6\u00f6tlemise tulemuslikkusele (501 p\u00e4ringu t\u00e4itmine osutus 1,2 korda aeglasemaks 90% vahem\u00e4lu t\u00e4itmise juures Firefoxis ning 2,3 korda aeglasemaks Chromes kui 51 p\u00e4ringu t\u00e4itmine). Server Push'i kasutamine ei n\u00e4idanud Firefoxis olulist kasu, kuid osutus t\u00f5husaks suure hulga ressursside laadimisel Chromes. Uuringu autorid m\u00e4rkisid ka, et serveripoolne optimeerimine m\u00f5jutab tulemuslikkust oluliselt rohkem kui brauseris toimiva kliendikoodi optimeerimine.<\/p>\n

<\/a><\/noindex><\/p>\n

Allikas: 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 \u0438\u0437\u0443\u0447\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u0445 \u043c\u0435\u0442\u043e\u0434\u043e\u0432 \u0438\u0437\u0432\u043b\u0435\u0447\u0435\u043d\u0438\u044f \u043a\u043e\u043b\u043b\u0435\u043a\u0446\u0438\u0438 \u0440\u0435\u0441\u0443\u0440\u0441\u043e\u0432, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u0434\u043b\u044f \u043e\u0431\u0440\u0430\u0449\u0435\u043d\u0438\u044f \u043a \u0441\u0435\u0440\u0432\u0435\u0440\u0443 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u044b HTTP\/1.1, HTTP\/2 \u0438 HTTP\/2 + Server Push. \u0412 \u0438\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u043d\u0438\u0438 \u0442\u0430\u043a\u0436\u0435 \u043e\u0446\u0435\u043d\u0435\u043d\u043e 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