{"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\/pl\/blog\/news\/sravnenie-proizvoditelnosti-http-1-1-http-2-i-http-2-server-push","title":{"rendered":"Por\u00f3wnanie wydajno\u015bci HTTP\/1.1, HTTP\/2 i HTTP\/2 + Server Push","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/evertpot.com\/h2-parallelism\/\">Opublikowano<\/a><\/noindex> wyniki badania wydajno\u015bci r\u00f3\u017cnych metod pobierania kolekcji zasob\u00f3w, u\u017cywaj\u0105c protoko\u0142\u00f3w HTTP\/1.1, HTTP\/2 i HTTP\/2 + Server Push do komunikacji z serwerem. W badaniu oceniono r\u00f3wnie\u017c wp\u0142yw obecno\u015bci \u017c\u0105danych danych w pami\u0119ci podr\u0119cznej przegl\u0105darki oraz manipulacje zasobami na poziomie logiki aplikacji (\u0142\u0105czenie zasob\u00f3w w jeden blok JSON).<\/p>\n<p>Test wydajno\u015bci wykonania 25 zapyta\u0144 wykaza\u0142 w sumie przewidywalne wyniki \u2014 zauwa\u017calne op\u00f3\u017anienie zapytania przez HTTP\/1.1 przy pustej pami\u0119ci podr\u0119cznej oraz prowadzenie w dostarczaniu zasob\u00f3w jednym blokiem (testy z etykiet\u0105 \u00abcompound\u00bb). Wydajno\u015b\u0107 Firefox i Chrome by\u0142a na mniej wi\u0119cej tym samym poziomie, jednak obecno\u015b\u0107 danych w pami\u0119ci podr\u0119cznej nie doprowadzi\u0142a do oczekiwanego wzrostu efektywno\u015bci.<\/p>\n<p><center><noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/pics_base\/0_1578035907.png\"><img decoding=\"async\" alt=\"Por\u00f3wnanie wydajno\u015bci HTTP\/1.1, HTTP\/2 i HTTP\/2 + Server Push\" src=\"\/wp-content\/uploads\/2020\/01\/65220a8e8b90cf034469b7cfc302a4d9.png\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/center><\/p>\n<p>Jednak w te\u015bcie obci\u0105\u017cenia 500 zapyta\u0144 pojawi\u0142o si\u0119 zauwa\u017calne op\u00f3\u017anienie Chrome w por\u00f3wnaniu do Firefox przy przesy\u0142aniu du\u017cej liczby zapyta\u0144 oraz op\u00f3\u017anienie Firefox w por\u00f3wnaniu do Chrome przy u\u017cyciu mechanizmu Server Push i w sytuacji, gdy HTTP\/2 mia\u0142o dost\u0119p do wi\u0119kszo\u015bci danych w pami\u0119ci podr\u0119cznej przegl\u0105darki. Chrome wykaza\u0142 bardziej efektywne zarz\u0105dzanie pami\u0119ci\u0105 podr\u0119czn\u0105, a Firefox bardziej efektywn\u0105 obs\u0142ug\u0119 zewn\u0119trznych zapyta\u0144.<\/p>\n<p><center><noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/pics_base\/0_1578035953.png\"><img decoding=\"async\" alt=\"Por\u00f3wnanie wydajno\u015bci HTTP\/1.1, HTTP\/2 i HTTP\/2 + Server Push\" src=\"\/wp-content\/uploads\/2020\/01\/1ca56f910b6f15900504b9ed40fb567e.png\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/center><\/p>\n<p><center><noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/pics_base\/0_1578036180.png\"><img decoding=\"async\" alt=\"Por\u00f3wnanie wydajno\u015bci HTTP\/1.1, HTTP\/2 i HTTP\/2 + Server Push\" src=\"\/wp-content\/uploads\/2020\/01\/1b34283595dbdc23d3876541c3b44142.png\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/center><\/p>\n<p>Na podstawie wynik\u00f3w test\u00f3w stwierdzono, \u017ce HTTP\/2 umo\u017cliwia do\u015b\u0107 efektywne przetwarzanie oddzielnych zapyta\u0144 du\u017cej kolekcji zasob\u00f3w. R\u00f3\u017cnice wydajno\u015bci prostych schemat\u00f3w oddzielnego dostarczania zasob\u00f3w w por\u00f3wnaniu do metod, w kt\u00f3rych zasoby s\u0105 agregowane w jeden blok, nie s\u0105 na tyle istotne, aby uzasadni\u0107 znaczn\u0105 komplikacj\u0119 logiki przetwarzania po stronie aplikacji, <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/pl\/server\/dts-los-angeles\/\"   title=\"serwera\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3593\">serwera<\/a>. Agregacja ma sens tylko w sytuacjach, w kt\u00f3rych wydajno\u015b\u0107 ma najwy\u017cszy priorytet. Gdy wa\u017cniejsze jest uproszczenie logiki i prosty API, sensowne jest stosowanie oddzielnego przetwarzania zasob\u00f3w.<\/p>\n<p>Innym wnioskiem jest to, \u017ce pami\u0119\u0107 podr\u0119czna przegl\u0105darki przy u\u017cyciu HTTP\/2 nie ma znacznego wp\u0142ywu na wydajno\u015b\u0107 przetwarzania \u017c\u0105da\u0144 (ca\u0142kowite wykonanie 501 \u017c\u0105dania okaza\u0142o si\u0119 wolniejsze od wykonania 51 \u017c\u0105dania przy 90% wype\u0142nienia pami\u0119ci podr\u0119cznej w Firefoxie 1,2 razy oraz 2,3 razy w Chrome). Wykorzystanie Server Push nie przynios\u0142o znacz\u0105cych korzy\u015bci w Firefoxie, ale okaza\u0142o si\u0119 skuteczne przy \u0142adowaniu du\u017cej liczby zasob\u00f3w w Chrome. Autorzy badania zauwa\u017cyli r\u00f3wnie\u017c, \u017ce optymalizacja cz\u0119\u015bci serwerowej ma wi\u0119kszy wp\u0142yw na wydajno\u015b\u0107 ni\u017c optymalizacja kodu klienta wykonywanego w przegl\u0105darce.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>\u0179r\u00f3d\u0142o: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=52129\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\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 \u0432\u043b\u0438\u044f\u043d\u0438\u0435 \u043d\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u044c \u043d\u0430\u0445\u043e\u0436\u0434\u0435\u043d\u0438\u0435 \u0437\u0430\u043f\u0440\u0430\u0448\u0438\u0432\u0430\u0435\u043c\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445 \u043a \u043a\u044d\u0448\u0435 \u0431\u0440\u0430\u0443\u0437\u0435\u0440\u0430 \u0438 \u043c\u0430\u043d\u0438\u043f\u0443\u043b\u044f\u0446\u0438\u0438 \u0440\u0435\u0441\u0443\u0440\u0441\u0430\u043c\u0438 \u043d\u0430 \u0443\u0440\u043e\u0432\u043d\u0435 \u043b\u043e\u0433\u0438\u043a\u0438 \u0440\u0430\u0431\u043e\u0442\u044b \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f (\u0441\u0432\u0435\u0434\u0435\u043d\u0438\u0435 \u0440\u0435\u0441\u0443\u0440\u0441\u043e\u0432 \u0432 \u0435\u0434\u0438\u043d\u044b\u0439 JSON-\u0431\u043b\u043e\u043a). \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 [&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-54747","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=\"\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 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