{"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\/hu\/blog\/administrirovanie\/bitva-web-serverov-chast-1-otorvannyj-ot-realnosti-http","title":{"rendered":"WEB-szerverek csat\u00e1ja. 1. r\u00e9sz \u2013 a val\u00f3s\u00e1gt\u00f3l elrugaszkodott HTTP:","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Ebben a cikkben megpr\u00f3b\u00e1ljuk a reverz m\u00e9rn\u00f6ks\u00e9get, mondhatni. Megleshetj\u00fck, hogy mi t\u00f6rt\u00e9nt a webkiszolg\u00e1l\u00f3k motorh\u00e1ztet\u0151je alatt, kihaszn\u00e1lva \u0151ket, ahogyan senki m\u00e1s nem tenn\u00e9.<\/p>\n<p>Ez a teszt egy g\u00f6mb alak\u00fa l\u00f3 m\u00e9r\u00e9se a v\u00e1kuumban, csup\u00e1n adatok, amelyeket megkaptunk, \u00e9s most m\u00e1r nem tudjuk, mit kezdj\u00fcnk vel\u00fck.<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/ultravds\/blog\/478854\/\"><img decoding=\"async\" alt=\"WEB-szerverek csat\u00e1ja. 1. r\u00e9sz \u2013 a val\u00f3s\u00e1gt\u00f3l elrugaszkodott 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>M\u00f3dszertan<\/h2>\n<p>\nAz Nginx \u00e9s Apache oper\u00e1ci\u00f3s rendszere az Ubuntu 18.04 LTS, m\u00edg az IIS a Windows Server Core 2019. Minden oper\u00e1ci\u00f3s rendszert a tesztek el\u0151tt a 2019.12.04-i \u00e1llapotnak megfelel\u0151en friss\u00edtettek.<\/p>\n<p>A teszteket kiz\u00e1r\u00f3lag HTTP-n v\u00e9gezt\u00e9k. Minden webkiszolg\u00e1l\u00f3n ugyanaz az oldal futott, a Codrops ingyenes Jekyll sablonja. <noindex><a rel=\"nofollow\" href=\"https:\/\/tympanus.net\/codrops\/2018\/04\/20\/freebie-oasis-jekyll-website-template\/\">Link<\/a><\/noindex>. Minden webkiszolg\u00e1l\u00f3n le volt tiltva a gzip t\u00f6m\u00f6r\u00edt\u00e9s.<\/p>\n<p>A s\u00e1vsz\u00e9less\u00e9g tesztj\u00e9t a Httpd-tools seg\u00edts\u00e9g\u00e9vel v\u00e9gezt\u00fck az al\u00e1bbi argumentumokkal:<\/p>\n<pre><code class=\"plaintext\">ab -n 50000 -c 500 http:\/\/192.168.76.204:80\/<\/code><\/pre>\n<p>\nA szerverekre 10, 5 \u00e9s 1 sz\u00e1zal\u00e9kos korl\u00e1t ker\u00fclt be\u00e1ll\u00edt\u00e1sra a 8, 4 \u00e9s 1 magra. A tesztk\u00f6rnyezet egy 9900K@5400MHz sz\u00e1m\u00edt\u00f3g\u00e9p volt, ami azt jelenti, hogy a 10%-os korl\u00e1tot kapott szerver k\u00f6r\u00fclbel\u00fcl 540 MHz-t kap egy magra.<\/p>\n<p>A TTFB teszt a szerver els\u0151 bet\u00f6lt\u00e9sekor zajlott, \u00e9s a DevTools seg\u00edts\u00e9g\u00e9vel m\u00e9rt\u00e9k. Az eredm\u00e9ny meg\u00e9rkez\u00e9se ut\u00e1n a szerver kikapcsolt, \u00e9s visszav\u00e1ltozott a kor\u00e1bbi ellen\u0151rz\u00e9si pontra, hogy kiz\u00e1rjuk b\u00e1rmilyen fajta gyors\u00edt\u00f3t\u00e1r megjelen\u00e9s\u00e9t.<\/p>\n<p>A tesztel\u0151 \u00e9s a webkiszolg\u00e1l\u00f3 ugyanazon a hoszton \u00e9s ugyanazon a virtu\u00e1lis kapcsol\u00f3n helyezkedtek el.<\/p>\n<p>Annak az azonnali \u00e9rt\u00e9kel\u00e9s\u00e9re, hogy a lemezes alrendszer hogyan teljes\u00edt, az ATTO \u00e9s a CrystalDiskMark benchmark eredm\u00e9nyek, hogy legyen elk\u00e9pzel\u00e9s\u00fcnk a sz\u0171k keresztmetszetekr\u0151l.<\/p>\n<p><b class=\"spoiler_title\">Az adatok a virtu\u00e1lis g\u00e9pr\u0151l sz\u00e1rmaznak:<\/b><img decoding=\"async\" alt=\"WEB-szerverek csat\u00e1ja. 1. r\u00e9sz \u2013 a val\u00f3s\u00e1gt\u00f3l elrugaszkodott HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/c2a464331084fc9abc85c78801d6fdcd.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<img decoding=\"async\" alt=\"WEB-szerverek csat\u00e1ja. 1. r\u00e9sz \u2013 a val\u00f3s\u00e1gt\u00f3l elrugaszkodott HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/a991f1269577e0d518d9d8d7e8781504.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<img decoding=\"async\" alt=\"WEB-szerverek csat\u00e1ja. 1. r\u00e9sz \u2013 a val\u00f3s\u00e1gt\u00f3l elrugaszkodott HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/a016306c7758bcb9552543ce9b650821.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<img decoding=\"async\" alt=\"WEB-szerverek csat\u00e1ja. 1. r\u00e9sz \u2013 a val\u00f3s\u00e1gt\u00f3l elrugaszkodott HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/14d0219d1316ea478d65106658e0da73.jpeg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<h2>Results:<\/h2>\n<p>\nTTFB:<\/p>\n<p><img decoding=\"async\" alt=\"WEB-szerverek csat\u00e1ja. 1. r\u00e9sz \u2013 a val\u00f3s\u00e1gt\u00f3l elrugaszkodott HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/49a5364dae59253537c31b128472c018.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Az IIS \u00e1tlagos TTFB-je a legalacsonyabb, 0,5 ms, m\u00edg az Apache 1,4 ms-t, a Nginx pedig 4 ms-t m\u00e9r.<\/i><\/p>\n<p><b>\u00c1tviteli sebess\u00e9g:<\/b><\/p>\n<p>El\u0151sz\u00f6r n\u00e9zz\u00fck meg, mennyire j\u00f3l sk\u00e1l\u00e1z\u00f3dnak a szerverek a magok sz\u00e1m\u00e1t tekintve.<\/p>\n<p><img decoding=\"async\" alt=\"WEB-szerverek csat\u00e1ja. 1. r\u00e9sz \u2013 a val\u00f3s\u00e1gt\u00f3l elrugaszkodott HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/9f6f221213d37a9349eac889ad6a1c86.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nA grafikonon a tesztel\u0151 webkiszolg\u00e1l\u00f3hoz int\u00e9zett k\u00e9r\u00e9seinek sz\u00e1ma \u00e9s a k\u00e9sleltet\u00e9s l\u00e1that\u00f3. A grafikon alapj\u00e1n az NGINX a k\u00e9rd\u00e9sek 98%-\u00e1t kezelte, a weboldalt 20 ms-n\u00e1l kevesebb id\u0151 alatt adta \u00e1t. Az IIS \u00e9s az Apache a k\u00e9rd\u00e9sek utols\u00f3 5%-\u00e1t 76 ms \u00e9s 14 ms alatt kezelte.<\/p>\n<p><img decoding=\"async\" alt=\"WEB-szerverek csat\u00e1ja. 1. r\u00e9sz \u2013 a val\u00f3s\u00e1gt\u00f3l elrugaszkodott HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/903b294d00e5c7b65cf0380c012e1a24.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<img decoding=\"async\" alt=\"WEB-szerverek csat\u00e1ja. 1. r\u00e9sz \u2013 a val\u00f3s\u00e1gt\u00f3l elrugaszkodott HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/6a0822bb8261a40514fa899a0eb33145.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<img decoding=\"async\" alt=\"WEB-szerverek csat\u00e1ja. 1. r\u00e9sz \u2013 a val\u00f3s\u00e1gt\u00f3l elrugaszkodott HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/e66a72b5c84a70867085f6967dc58f51.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nA grafikonon a stresszteszt sor\u00e1n egyetlen k\u00e9r\u00e9s feldolgoz\u00e1s\u00e1nak \u00e1tlagos ideje l\u00e1that\u00f3.<\/p>\n<p>Ahogyan a grafikonokb\u00f3l is l\u00e1tszik, az IIS veres\u00e9get szenvedett mind az Apache, mind a Nginx ellen, jelent\u0151sen lelassulva a nagy terhel\u00e9s alatt.\u00a0<\/p>\n<p>Az IIS egy\u00e9rtelm\u0171en a 4 magot r\u00e9szes\u00edtette el\u0151nyben a nyolccal szemben, kisebb k\u00e9sleltet\u00e9seket mutatva a n\u00e9gy mag eset\u00e9n, de az egy maggal is csak kicsit volt el\u00e9gedett.<\/p>\n<p>Az NGINX t\u00f6k\u00e9letesen sk\u00e1l\u00e1z\u00f3dik a 8 magra, m\u00edg az Apache sz\u00e1m\u00e1ra egy magos forgat\u00f3k\u00f6nyv t\u0171nik a legjobb v\u00e1laszt\u00e1snak.<\/p>\n<h2>Sk\u00e1l\u00e1zhat\u00f3s\u00e1g:<\/h2>\n<p>\n<b>Nginx:<\/b><\/p>\n<p>Most n\u00e9zz\u00fck meg a sk\u00e1l\u00e1zhat\u00f3s\u00e1got a magok sz\u00e1m\u00e1nak \u00e9s frekvenci\u00e1j\u00e1nak f\u00fcggv\u00e9ny\u00e9ben.\u00a0<\/p>\n<p><img decoding=\"async\" alt=\"WEB-szerverek csat\u00e1ja. 1. r\u00e9sz \u2013 a val\u00f3s\u00e1gt\u00f3l elrugaszkodott HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/526bc9786e458b40d8831d46a7773ada.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nAz 1%-os korl\u00e1toz\u00e1ssal v\u00e9gzett tesztben a 4 \u00e9s 1 magos Nginx nem teljes\u00edtett, 2000 k\u00e9r\u00e9s felett megszak\u00edtotta a kapcsolatot a tesztel\u0151vel.<\/p>\n<p><b>Apache:<\/b><\/p>\n<p><img decoding=\"async\" alt=\"WEB-szerverek csat\u00e1ja. 1. r\u00e9sz \u2013 a val\u00f3s\u00e1gt\u00f3l elrugaszkodott HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/be0862743523ff3dc334904987922b86.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nAz Apache, mint a Nginx, 2500 k\u00e9r\u00e9s ut\u00e1n feladta \u00e9s megszak\u00edtotta a kapcsolatot. Az Apache nem teljes\u00edtette a tesztet 8, 4 \u00e9s 1 magos konfigur\u00e1ci\u00f3val 1%-os korl\u00e1toz\u00e1ssal, s\u0151t, a 1 magos, 5%-os tesztet is elbukta, ami rosszabb, mint a Nginx teljes\u00edtm\u00e9nye.<\/p>\n<p><b>IIS:<\/b><\/p>\n<p><img decoding=\"async\" alt=\"WEB-szerverek csat\u00e1ja. 1. r\u00e9sz \u2013 a val\u00f3s\u00e1gt\u00f3l elrugaszkodott HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/d16bfc3ad3bcae98c8d37cc7b34d5fe9.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nAz IIS a tesztek sor\u00e1n hatalmas sorozatot gy\u0171jt\u00f6tt \u00f6ssze a k\u00e9r\u00e9sekb\u0151l, de mindegyiket feldolgozta. \u00dagy t\u0171nik, hogy alap\u00e9rtelmezetten nincsenek be\u00e1ll\u00edtva id\u0151korl\u00e1tok a k\u00e9r\u00e9sek feldolgoz\u00e1s\u00e1ra.<\/p>\n<p><img decoding=\"async\" alt=\"WEB-szerverek csat\u00e1ja. 1. r\u00e9sz \u2013 a val\u00f3s\u00e1gt\u00f3l elrugaszkodott HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/ee9f7af9f881c15a165b1b68eb4950d6.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nA diagram bemutatja azt az id\u0151t, amely alatt a teszt befejez\u0151d\u00f6tt. Teljesen abszurd tesztel\u00e9si konfigur\u00e1ci\u00f3kat elhagytak. A diagramon l\u00e1that\u00f3, hogy az IIS mennyire ig\u00e9nyes a hardverre \u00e9s mennyire kiv\u00e1l\u00f3 a NGINX.<\/p>\n<h2>Sk\u00e1l\u00e1zhat\u00f3s\u00e1g lemez alapj\u00e1n:<\/h2>\n<p>\n<b>Nginx:<\/b><\/p>\n<p>Most n\u00e9zz\u00fck meg a sk\u00e1l\u00e1zhat\u00f3s\u00e1got a magok sz\u00e1m\u00e1nak, frekvenci\u00e1j\u00e1nak \u00e9s a lemez sebess\u00e9g\u00e9nek f\u00fcggv\u00e9ny\u00e9ben.\u00a0<\/p>\n<p><img decoding=\"async\" alt=\"WEB-szerverek csat\u00e1ja. 1. r\u00e9sz \u2013 a val\u00f3s\u00e1gt\u00f3l elrugaszkodott HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/978b210f1f8bb8b8b4f64b9882385f8c.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nEz\u00fattal az Nginx nem teljes\u00edtette a 4 tesztet, helyette kett\u0151t.<\/p>\n<p><b>Apache:<\/b><\/p>\n<p><img decoding=\"async\" alt=\"WEB-szerverek csat\u00e1ja. 1. r\u00e9sz \u2013 a val\u00f3s\u00e1gt\u00f3l elrugaszkodott HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/eaa85257cd0c15b8184c1094ff070049.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nAz Apache ugyanolyan sz\u00e1m\u00fa tesztet bukott el, mint legut\u00f3bb.<\/p>\n<p><b>IIS:<\/b><\/p>\n<p><img decoding=\"async\" alt=\"WEB-szerverek csat\u00e1ja. 1. r\u00e9sz \u2013 a val\u00f3s\u00e1gt\u00f3l elrugaszkodott HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/553764705cf7fba6e341cc82c4c7f5b6.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nAz IIS szinte azonos grafikont mutat, mintha nem lettek volna korl\u00e1toz\u00e1sok a lemezen. \u00d6sszess\u00e9g\u00e9ben a szerverek grafik\u00e1ja nem v\u00e1ltozott jelent\u0151sen, ami azt jelenti, hogy mindegyik\u00fck a statikus tartalmat a mem\u00f3ri\u00e1ba cache-elte \u00e9s onnan szolg\u00e1lta ki. Itt l\u00e1tjuk a legf\u0151bb sz\u0171k keresztmetszetet \u2013 maga a webkiszolg\u00e1l\u00f3.<\/p>\n<p>T\u00fal korai k\u00f6vetkeztet\u00e9seket levonni ebb\u0151l a tesztel\u00e9sb\u0151l, m\u00e9g nem tesztelt\u00fck a HTTPS-t, a t\u00f6m\u00f6r\u00edt\u00e9st \u00e9s a HTTP\/2-t az \u00e9l\u0151 Let\u2019s Encrypt tan\u00fas\u00edtv\u00e1nnyal. Err\u0151l a k\u00f6vetkez\u0151 cikkben sz\u00e1molunk be.<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/ultravds.com\/\"><img decoding=\"async\" alt=\"WEB-szerverek csat\u00e1ja. 1. r\u00e9sz \u2013 a val\u00f3s\u00e1gt\u00f3l elrugaszkodott HTTP:\" src=\"\/wp-content\/uploads\/2019\/12\/dd11cfe995504ef694c618e2f9318523.jpeg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><br \/>\n<br \/>Forr\u00e1s: <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 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