{"id":53623,"date":"2019-12-06T00:00:00","date_gmt":"2019-12-05T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/bitva-web-serverov-chast-1-otorvannyj-ot-realnosti-http"},"modified":"2020-02-18T14:01:33","modified_gmt":"2020-02-18T11:01:33","slug":"bitva-web-serverov-chast-1-otorvannyj-ot-realnosti-http","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hr\/blog\/administrirovanie\/bitva-web-serverov-chast-1-otorvannyj-ot-realnosti-http","title":{"rendered":"Bitka WEB poslu\u017eitelja. Dio 1 \u2013 odvojen od stvarnosti HTTP:","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>U ovom \u010dlanku \u0107emo poku\u0161ati malo s reverznim in\u017eenjeringom. Pogledat \u0107emo svojim prljavim rukama ispod haube svakog od web poslu\u017eitelja, iskori\u0161tavaju\u0107i ih kao \u0161to ih nitko nikada ne bi iskoristio.<\/p>\n<p>Ovaj test je mjerenje sfernog konja u vakuumu, samo podatci koje smo prikupili i sada ne znamo \u0161to s njima u\u010diniti.<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/ultravds\/blog\/478854\/\"><img decoding=\"async\" alt=\"Bitka WEB poslu\u017eitelja. Dio 1 \u2013 odvojen od stvarnosti HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/3a7956c368c3ba63ef6373674804acaa.jpeg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<h2>Metodologija<\/h2>\n<p>\nKao operativni sustav za Nginx i Apache koristi se Ubuntu 18.04 LTS, a za IIS Windows Server Core 2019. Svi operativni sustavi su prije testiranja a\u017eurirani na stanje 04.12.2019.<\/p>\n<p>Testovi su provedeni isklju\u010divo putem HTTP-a. Na svakom od web poslu\u017eitelja vrtjela se ista stranica, besplatni predlo\u017eak za Jekyll od Codrops. <noindex><a rel=\"nofollow\" href=\"https:\/\/tympanus.net\/codrops\/2018\/04\/20\/freebie-oasis-jekyll-website-template\/\">Link<\/a><\/noindex>. Na svakom od web poslu\u017eitelja isklju\u010dena je gzip kompresija.<\/p>\n<p>Test propusnosti proveden je s Httpd-tools s argumentima:<\/p>\n<pre><code class=\"plaintext\">ab -n 50000 -c 500 http:\/\/192.168.76.204:80\/<\/code><\/pre>\n<p>\nNa serverima je postavljen limit od 10, 5 i 1 posto od jezgre na 8, 4 i jedno jezgro. Kao testna platforma kori\u0161ten je ra\u010dunar s 9900K@5400MHz, \u0161to zna\u010di da server koji je dobio limit od 10% dobiva oko 540MHz po jezgri.<\/p>\n<p>TTFB test je proveden prilikom prvog u\u010ditavanja servera i mjeren je pomo\u0107u DevTools-a, nakon dobivanja rezultata server je isklju\u010den i vra\u0107en na prethodnu kontrolnu to\u010dku, kako bi se isklju\u010dila pojava bilo kakvih ke\u0161eva.<\/p>\n<p>Tester i web poslu\u017eitelj nalazili su se na istom hostu i na istom virtualnom switchu.<\/p>\n<p>Da bismo odmah procijenili diskovni sustav, rezultati benchmarka ATTO i CrystalDiskMark, da bismo imali predstavu o uskim grlima.<\/p>\n<p><b class=\"spoiler_title\">Podaci su uzeti s virtualne ma\u0161ine:<\/b><img decoding=\"async\" alt=\"Bitka WEB poslu\u017eitelja. Dio 1 \u2013 odvojen od stvarnosti HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/c2a464331084fc9abc85c78801d6fdcd.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<img decoding=\"async\" alt=\"Bitka WEB poslu\u017eitelja. Dio 1 \u2013 odvojen od stvarnosti HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/a991f1269577e0d518d9d8d7e8781504.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<img decoding=\"async\" alt=\"Bitka WEB poslu\u017eitelja. Dio 1 \u2013 odvojen od stvarnosti HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/a016306c7758bcb9552543ce9b650821.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<img decoding=\"async\" alt=\"Bitka WEB poslu\u017eitelja. Dio 1 \u2013 odvojen od stvarnosti HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/14d0219d1316ea478d65106658e0da73.jpeg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<h2>Rezultati:<\/h2>\n<p>\nTTFB:<\/p>\n<p><img decoding=\"async\" alt=\"Bitka WEB poslu\u017eitelja. Dio 1 \u2013 odvojen od stvarnosti HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/49a5364dae59253537c31b128472c018.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Prosje\u010dni TTFB kod IIS-a je najmanji, 0,5ms, naspram 1,4ms kod Apache i 4ms kod Nginxa.<\/i><\/p>\n<p><b>Propusnost:<\/b><\/p>\n<p>Prvo \u0107emo razmotriti koliko dobro svaki od poslu\u017eitelja skalira s brojem jezgri.<\/p>\n<p><img decoding=\"async\" alt=\"Bitka WEB poslu\u017eitelja. Dio 1 \u2013 odvojen od stvarnosti HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/9f6f221213d37a9349eac889ad6a1c86.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nNa grafikonu je prikazan broj zahtjeva testera prema web poslu\u017eitelju i latencija. Na grafikonu se vidi da je NGINX obradio 98% svih zahtjeva, isporu\u010duju\u0107i stranicu za 20ms ili manje. IIS i Apache su posljednjih 5% svih zahtjeva obradili za 76ms i 14ms respektivno.<\/p>\n<p><img decoding=\"async\" alt=\"Bitka WEB poslu\u017eitelja. Dio 1 \u2013 odvojen od stvarnosti HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/903b294d00e5c7b65cf0380c012e1a24.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<img decoding=\"async\" alt=\"Bitka WEB poslu\u017eitelja. Dio 1 \u2013 odvojen od stvarnosti HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/6a0822bb8261a40514fa899a0eb33145.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<img decoding=\"async\" alt=\"Bitka WEB poslu\u017eitelja. Dio 1 \u2013 odvojen od stvarnosti HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/e66a72b5c84a70867085f6967dc58f51.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nNa grafikonu je prikazano prosje\u010dno vrijeme obrade jednog zahtjeva tijekom stres testa.<\/p>\n<p>Kao \u0161to se mo\u017ee primijetiti iz grafova, IIS je izgubio od Apachea i Nginxa, zna\u010dajno usporavaju\u0107i pod visokim optere\u0107enjem.\u00a0<\/p>\n<p>IIS je o\u010dito preferirao 4 jezgre umjesto osam, pokazuju\u0107i manje ka\u0161njenje na \u010detiri, ali tako\u0111er nije previ\u0161e odobrio ni jedno jezgro.<\/p>\n<p>NGINX se izvrsno skalira na svih 8 jezgri, dok se za Apache, \u010dini se, najbolji izbor \u010dini scenarij s jednom jezgrom.<\/p>\n<h2>Skalabilnost:<\/h2>\n<p>\n<b>Nginx:<\/b><\/p>\n<p>Sada \u0107emo razmotriti skalabilnost prema frekvenciji i broju jezgri.\u00a0<\/p>\n<p><img decoding=\"async\" alt=\"Bitka WEB poslu\u017eitelja. Dio 1 \u2013 odvojen od stvarnosti HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/526bc9786e458b40d8831d46a7773ada.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nTestovi s ograni\u010denjem od 1% na 4 i 1 jezgri Nginx nije pro\u0161ao, prekidao se nakon 2000 zahtjeva.<\/p>\n<p><b>Apache:<\/b><\/p>\n<p><img decoding=\"async\" alt=\"Bitka WEB poslu\u017eitelja. Dio 1 \u2013 odvojen od stvarnosti HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/be0862743523ff3dc334904987922b86.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nApache je, poput Nginxa, obradio 2500 zahtjeva i odustao, prekinuv\u0161i vezu. Apache nije pro\u0161ao test na 8, 4 i 1 jezgri s limitom od 1%, a osim toga nije pro\u0161ao ni test s ograni\u010denjem od 5% na jednoj jezgri, \u0161to je lo\u0161ije od Nginxa.<\/p>\n<p><b>IIS:<\/b><\/p>\n<p><img decoding=\"async\" alt=\"Bitka WEB poslu\u017eitelja. Dio 1 \u2013 odvojen od stvarnosti HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/d16bfc3ad3bcae98c8d37cc7b34d5fe9.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nIIS je tijekom testova stvorio ogroman red zahtjeva, ali je obradio svaki od njih. \u010cini se da iz kutije nije postavljen vremenski limit za obradu zahtjeva.<\/p>\n<p><img decoding=\"async\" alt=\"Bitka WEB poslu\u017eitelja. Dio 1 \u2013 odvojen od stvarnosti HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/ee9f7af9f881c15a165b1b68eb4950d6.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nNa dijagramu je predstavljeno vrijeme za koje je test zavr\u0161en. Potpuno apsurdne konfiguracije testiranja su odba\u010dene. Iz dijagrama se vidi koliko je IIS zahtjevan prema hardveru i koliko je NGINX izvrstan.<\/p>\n<h2>Skalabilnost s diska:<\/h2>\n<p>\n<b>Nginx:<\/b><\/p>\n<p>Sada \u0107emo razmotriti skalabilnost prema frekvenciji, broju jezgri i brzini diska.\u00a0<\/p>\n<p><img decoding=\"async\" alt=\"Bitka WEB poslu\u017eitelja. Dio 1 \u2013 odvojen od stvarnosti HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/978b210f1f8bb8b8b4f64b9882385f8c.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nOvoga puta Nginx nije pro\u0161ao 4 testa, umjesto 2.<\/p>\n<p><b>Apache:<\/b><\/p>\n<p><img decoding=\"async\" alt=\"Bitka WEB poslu\u017eitelja. Dio 1 \u2013 odvojen od stvarnosti HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/eaa85257cd0c15b8184c1094ff070049.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nApache je podbacio s istim brojem testova kao i pro\u0161li put.<\/p>\n<p><b>IIS:<\/b><\/p>\n<p><img decoding=\"async\" alt=\"Bitka WEB poslu\u017eitelja. Dio 1 \u2013 odvojen od stvarnosti HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/553764705cf7fba6e341cc82c4c7f5b6.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nIIS pokazuje gotovo identi\u010dan grafikon, kao da ograni\u010denja na disk nisu postojala. Op\u0107enito, grafikon svih servera se nije zna\u010dajno promijenio, \u0161to zna\u010di da su svi njihovi ke\u0161irali stati\u010dki sadr\u017eaj u RAM-u i pru\u017eali ga od tamo. Ovdje vidimo glavno usko grlo \u2013 sam web server.<\/p>\n<p>Rano je donositi zaklju\u010dke na temelju ovog testiranja, jo\u0161 nismo testirali HTTPS, kompresiju i HTTP\/2 s \u017eivim certifikatom od Let\u2019s Encrypt. O tome \u0107emo pisati u sljede\u0107em \u010dlanku.<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/ultravds.com\/\"><img decoding=\"async\" alt=\"Bitka WEB poslu\u017eitelja. Dio 1 \u2013 odvojen od stvarnosti HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/dd11cfe995504ef694c618e2f9318523.jpeg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><br \/>\n<br \/>Izvor: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/ultravds\/blog\/478854\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u044d\u0442\u043e\u0439 \u0441\u0442\u0430\u0442\u044c\u0435 \u043c\u044b \u043f\u043e\u043f\u0440\u043e\u0431\u0443\u0435\u043c \u0441\u0435\u0431\u044f \u0432 \u0440\u0435\u0432\u0435\u0440\u0441-\u0438\u043d\u0436\u0438\u043d\u0438\u0440\u0438\u043d\u0433\u0435, \u043c\u043e\u0436\u043d\u043e \u0441\u043a\u0430\u0437\u0430\u0442\u044c. \u041c\u044b \u0437\u0430\u0433\u043b\u044f\u043d\u0435\u043c \u0441\u0432\u043e\u0438\u043c\u0438 \u0433\u0440\u044f\u0437\u043d\u044b\u043c\u0438 \u0440\u0443\u043a\u0430\u043c\u0438 \u043f\u043e\u0434 \u043a\u0430\u043f\u043e\u0442 \u043a\u0430\u0436\u0434\u043e\u0433\u043e \u0438\u0437 \u0432\u0435\u0431-\u0441\u0435\u0440\u0432\u0435\u0440\u043e\u0432, \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0438\u0440\u0443\u044f \u0438\u0445 \u0442\u0430\u043a, \u043a\u0430\u043a \u043d\u0438\u043a\u0442\u043e \u0431\u044b \u043d\u0438\u043a\u043e\u0433\u0434\u0430 \u043d\u0435 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0438\u0440\u043e\u0432\u0430\u043b. \u042d\u0442\u043e\u0442 \u0442\u0435\u0441\u0442 \u2013 \u0437\u0430\u043c\u0435\u0440 \u0441\u0444\u0435\u0440\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u043a\u043e\u043d\u044f \u0432 \u0432\u0430\u043a\u0443\u0443\u043c\u0435, \u043d\u0435 \u0431\u043e\u043b\u0435\u0435 \u0447\u0435\u043c \u0434\u0430\u043d\u043d\u044b\u0435, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0431\u044b\u043b\u0438 \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u044b, \u0438 \u043c\u044b \u0442\u0435\u043f\u0435\u0440\u044c \u043d\u0435 \u0437\u043d\u0430\u0435\u043c, \u0447\u0442\u043e \u0441 \u043d\u0438\u043c\u0438 \u0434\u0435\u043b\u0430\u0442\u044c. \u041c\u0435\u0442\u043e\u0434\u0438\u043a\u0430 \u0412 [&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":[688],"tags":[],"class_list":["post-53623","post","type-post","status-publish","format-standard","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - 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