{"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\/novosti-interneta\/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\u00f5rdlemine","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Avaldatud<\/a><\/noindex> Uuringu tulemused, mis k\u00e4sitlevad erinevate ressursside kogumise meetodite j\u00f5udlust, kasutades serverisse p\u00f6\u00f6rdmiseks protokolle HTTP\/1.1, HTTP\/2 ja HTTP\/2 + Server Push. Uuringus hinnati ka, kuidas browseri vahem\u00e4lu kohalolek ja ressursside man\u00f6\u00f6verdus rakenduse loogika tasemel (ressursside koondamine \u00fchisesse JSON-plokki) m\u00f5jutavad j\u00f5udlust.<\/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

Kuid 500 p\u00e4ringu t\u00f6\u00f6tlemise testis tuli ilmsiks m\u00e4rkimisv\u00e4\u00e4rne mahaj\u00e4\u00e4mus Chrome'i ja Firefoxi vahel, kui edastada suures koguses p\u00e4ringuid. Samuti ilmnes Firefoxil mahaj\u00e4\u00e4mus Chrome'i ees Server Push-mehhanismi kasutamisel ja HTTP\/2 korral, kui enamus andmeid on brauseri va caches. Chrome n\u00e4itas paremat t\u00f6\u00f6kindlust va caches, samas kui Firefox oli t\u00f5husam v\u00e4liste p\u00e4ringute t\u00f6\u00f6tlemisel.<\/p>\n

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

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

Testide tulemuste p\u00f5hjal j\u00e4reldatakse, et HTTP\/2 v\u00f5imaldab suhteliselt efektiivselt k\u00e4sitleda suurte ressursside kogumi eraldi p\u00e4ringuid. Eraldi ressursi edastamise lihtsate skeemide ja meetodite, kus ressursid on koondatud \u00fchte plokki, j\u00f5udlusvahed ei ole nii olulised, et \u00f5igustada rakenduse poole poole keerukama t\u00f6\u00f6tlemise loogika suurendamist. serverile<\/a>. Koondamine on m\u00f5ttekas ainult olukordades, kus j\u00f5udlus on k\u00f5ige olulisem. Kui prioriteediks on loogika lihtsus ja lihtne API, on m\u00f5istlik kasutada eraldi ressursside t\u00f6\u00f6tlemist.<\/p>\n

Teiseks on t\u00f5estatud, et brauseri vahem\u00e4lu ei avalda HTTP\/2 kasutamisel m\u00e4rkimisv\u00e4\u00e4rset m\u00f5ju p\u00e4ringute t\u00f6\u00f6tlemise j\u00f5udlusele (501 p\u00e4ringu t\u00e4itmine osutus Firefoxis 1,2 korda ja Chromes 2,3 korda aeglasemaks kui 51 p\u00e4ringu t\u00e4itmine 90% vahem\u00e4lu t\u00e4itmise korral). Server Push 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 j\u00f5udlust m\u00e4rkimisv\u00e4\u00e4rsemalt kui brauseris suoritatud kliendi koodi optimeerimine.<\/p>\n

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

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

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