{"id":37492,"date":"2019-10-31T22:17:57","date_gmt":"2019-10-31T19:17:57","guid":{"rendered":"https:\/\/prohoster.info\/blog\/kak-otsenit-proizvoditelnost-linux-servera-otkrytye-instrumenty-dlya-benchmarkinga\/"},"modified":"2019-10-31T22:17:57","modified_gmt":"2019-10-31T19:17:57","slug":"kak-otsenit-proizvoditelnost-linux-servera-otkrytye-instrumenty-dlya-benchmarkinga","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/administrirovanie\/kak-otsenit-proizvoditelnost-linux-servera-otkrytye-instrumenty-dlya-benchmarkinga","title":{"rendered":"Hogyan \u00e9rt\u00e9kelj\u00fck a Linux szerverek teljes\u00edtm\u00e9ny\u00e9t: ny\u00edlt forr\u00e1sk\u00f3d\u00fa benchmark eszk\u00f6z\u00f6k","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>1cloud <noindex><a rel=\"nofollow\" href=\"https:\/\/1cloud.ru?utm_source=habrahabr&amp;utm_medium=cpm&amp;utm_campaign=bench3&amp;utm_content=site\">1cloud.hu<\/a><\/noindex> \u00d6ssze\u00e1ll\u00edtottunk egy eszk\u00f6z- \u00e9s szkriptv\u00e1logat\u00e1st a processzorok, t\u00e1rol\u00f3k \u00e9s mem\u00f3ria teljes\u00edtm\u00e9ny\u00e9nek \u00e9rt\u00e9kel\u00e9s\u00e9re Linux g\u00e9peken: Iometer, DD, vpsbench, HammerDB \u00e9s 7-Zip.<\/p>\n<p>M\u00e1s v\u00e1logat\u00e1saink benchmarks-hoz:<\/p>\n<ul>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/1cloud\/blog\/455834\/\">Sysbench, UnixBench, Phoronix Test Suite, Vdbench \u00e9s IOzone<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/1cloud\/blog\/458204\/\">Interbench, Fio, Hdparm, S \u00e9s Bonnie<\/a><\/noindex><\/li>\n<\/ul>\n<p>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/1cloud\/blog\/462777\/\"><img decoding=\"async\" alt=\"Hogyan \u00e9rt\u00e9kelj\u00fck a Linux szerverek teljes\u00edtm\u00e9ny\u00e9t: ny\u00edlt forr\u00e1sk\u00f3d\u00fa benchmark eszk\u00f6z\u00f6k\" src=\"\/wp-content\/uploads\/2019\/08\/774a58609d9809f1f8b95e9d8577d3bf.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\n<i>Fot\u00f3 \u2014 <noindex><a rel=\"nofollow\" href=\"https:\/\/www.flickr.com\/photos\/blmalaska\/40936624583\/\">Alaszkai F\u00f6ldgazd\u00e1lkod\u00e1si Hivatal<\/a><\/noindex> \u2014 CC BY<\/i><\/p>\n<p><\/p>\n<h2><noindex><a rel=\"nofollow\" href=\"http:\/\/www.iometer.org\/\">Iometer<\/a><\/noindex><\/h2>\n<p>\nEz egy benchmark a lemez- \u00e9s h\u00e1l\u00f3zati alrendszerek teljes\u00edtm\u00e9ny\u00e9nek \u00e9rt\u00e9kel\u00e9s\u00e9re. Alkalmas egyetlen szerver \u00e9s eg\u00e9sz klaszter m\u0171k\u00f6d\u00e9s\u00e9re is. Az Iometer-t az Intel m\u00e9rn\u00f6kei mutatt\u00e1k be 1998-ban. 2001-ben a v\u00e1llalat \u00e1tadta a forr\u00e1sokat egy nonprofit szervezetnek, az Open Source Development Labs-nak (<noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Open_Source_Development_Labs\">OSDL<\/a><\/noindex>) az <noindex><a rel=\"nofollow\" href=\"http:\/\/www.iometer.org\/doc\/licenses\/iosl.txt\">Intel Open Source License<\/a><\/noindex>alapj\u00e1n. 2003 \u00f3ta a t\u00e1mogat\u00e1s\u00e1t egy lelkes csoport v\u00e9gzi \u2014 a projekt <noindex><a rel=\"nofollow\" href=\"https:\/\/sourceforge.net\/projects\/iometer\/\">regisztr\u00e1lva van<\/a><\/noindex> a SourceForge.net-en.<\/p>\n<p>Az Iometer egy terhel\u00e9sgener\u00e1torb\u00f3l, a dynaMOb\u00f3l \u00e9s egy grafikus felhaszn\u00e1l\u00f3i fel\u00fcletb\u0151l \u00e1ll. Az ut\u00f3bbi azonban csak Windows alatt \u00e9rhet\u0151 el. Ami a gener\u00e1tort illeti, lehet\u0151v\u00e9 teszi harmadik f\u00e9l alkalmaz\u00e1sok terhel\u00e9s\u00e9nek szimul\u00e1l\u00e1s\u00e1t \u2014 ezen c\u00e9lb\u00f3l speci\u00e1lis tesztmint\u00e1kat hoznak l\u00e9tre.<\/p>\n<blockquote><p>A benchmarkok megmutatj\u00e1k: s\u00e1vsz\u00e9less\u00e9g, m\u00e1sodpercenk\u00e9nti m\u0171veletek, k\u00e9sleltet\u00e9s \u00e9s processzor terhel\u00e9s. Nemcsak az \u00e1tlagos \u00e9rt\u00e9keket, hanem a minimum\/maximum adatokat is kisz\u00e1m\u00edtj\u00e1k.<\/p><\/blockquote>\n<p>\nB\u00e1r az eszk\u00f6z utols\u00f3 stabil v\u00e1ltozata 2014-ben jelent meg, m\u00e9g mindig haszn\u00e1lj\u00e1k a <noindex><a rel=\"nofollow\" href=\"https:\/\/www.broadcom.com\/support\/knowledgebase\/1211161498486\/using-iometer---general-tips-for-testing-cachecade\">Broadcom<\/a><\/noindex> \u00e9s <noindex><a rel=\"nofollow\" href=\"https:\/\/www.dell.com\/support\/article\/us\/en\/19\/how10228\/how-to-test-performance-on-poweredge-servers-with-iometer\">Dell<\/a><\/noindex>-n\u00e1l. Azonban a rendszer kora m\u00e9gis \u00e9rezteti a hat\u00e1s\u00e1t. El\u0151sz\u00f6r is, a felhaszn\u00e1l\u00f3i fel\u00fclete <noindex><a rel=\"nofollow\" href=\"http:\/\/www.iometer.org\/doc\/screenshots.html\">elavult<\/a><\/noindex> \u00e9s 1998 \u00f3ta nem v\u00e1ltozott. M\u00e1sodszor, az eszk\u00f6z n\u00e9ha nem ad megfelel\u0151 eredm\u00e9nyeket az all-flash t\u00f6mb\u00f6k\u00f6n.<\/p>\n<p><\/p>\n<h2><noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/mgutz\/vpsbench\">vpsbench<\/a><\/noindex><\/h2>\n<p>\nEgyszer\u0171 szkript a VPS teljes\u00edtm\u00e9ny\u00e9nek \u00e9rt\u00e9kel\u00e9s\u00e9re. MIT <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/mgutz\/vpsbench\/blob\/master\/LICENSE\">licenc alatt terjesztik. \u00cdme egy p\u00e9lda a m\u0171k\u00f6d\u00e9s\u00e9re, amelyet az hivatalos GitHub t\u00e1rol\u00f3ban tal\u00e1lhat\u00f3:<\/a><\/noindex>$ bash &lt;(wget --no-check-certificate -O - https:\/\/raw.github.com\/mgutz\/vpsbench\/master\/vpsbench)\n\nCPU modell: Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz\nMagok sz\u00e1ma: 4\nCPU frekvencia: 3417.879 MHz\n\u00d6sszes RAM mennyis\u00e9g: 3265 MB\n\u00d6sszes swap mennyis\u00e9g: 1021 MB\nRendszer \u00fczemid\u0151: 8:41,\nI\/O sebess\u00e9g: 427 MB\/s\nBzip 25MB: 4.66s\n100MB f\u00e1jl let\u00f6lt\u00e9se: 1.64MB\/s<\/p>\n<pre><code class=\"bash\">Az eszk\u00f6z megjelen\u00edti a magok sz\u00e1m\u00e1t, a processzor frekvenci\u00e1j\u00e1t, a felhaszn\u00e1lt mem\u00f3ria mennyis\u00e9g\u00e9t. A lemez teljes\u00edtm\u00e9ny\u00e9nek \u00e9rt\u00e9kel\u00e9s\u00e9re vpsbench\n<\/code><\/pre>\n<p>\nsoros \u00e9s v\u00e9letlenszer\u0171 olvas\u00e1st\/\u00edr\u00e1st v\u00e9gez. B\u00e1r az eszk\u00f6z el\u00e9g r\u00e9gi (a GitHub-ra val\u00f3 friss\u00edt\u00e9s k\u00f6r\u00fclbel\u00fcl n\u00e9gy \u00e9ve t\u00f6rt\u00e9nt), a <noindex><a rel=\"nofollow\" href=\"https:\/\/www.lowendtalk.com\/discussion\/144821\/new-vps-specific-benchmark-update-download-avail\">ellen\u0151rzi<\/a><\/noindex> sok felh\u0151szolg\u00e1ltat\u00f3 \u00e9s IT-c\u00e9g haszn\u00e1lja. <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/mgutz\/vpsbench\/wiki\/VPS-Hosts\">haszn\u00e1lja<\/a><\/noindex> HammerDB<\/p>\n<p><\/p>\n<h2><noindex><a rel=\"nofollow\" href=\"https:\/\/www.hammerdb.com\/\">Az egyik legn\u00e9pszer\u0171bb<\/a><\/noindex><\/h2>\n<p>\nbenchmark az adatb\u00e1zisok terhel\u00e9si tesztel\u00e9s\u00e9re. Az eszk\u00f6zt egy nonprofit szervezet <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/TPC-Council\/HammerDB\">ny\u00edlt forr\u00e1sk\u00f3d\u00fa<\/a><\/noindex> TPC <noindex><a rel=\"nofollow\" href=\"http:\/\/www.tpc.org\/\">t\u00e1mogatja.<\/a><\/noindex> \u2014 Transaction Processing Performance Council. C\u00e9lja a DB-benchmarkok standardjainak kidolgoz\u00e1sa.<\/p>\n<p>A HammerDB tesztadatb\u00e1zis-s\u00e9m\u00e1t hoz l\u00e9tre, felt\u00f6lti adatokka l, \u00e9s t\u00f6bb virtu\u00e1lis felhaszn\u00e1l\u00f3 terhel\u00e9s\u00e9t szimul\u00e1lja. A terhel\u00e9s lehet tranzakci\u00f3s \u00e9s analitikai m\u0171velet is. T\u00e1mogatja: Oracle Database, SQL Server, IBM Db2, MySQL, MariaDB, PostgreSQL \u00e9s Redis.<\/p>\n<p>A HammerDB k\u00f6r\u00fcl kiterjedt k\u00f6z\u00f6ss\u00e9g alakult ki. Az eszk\u00f6zt a vil\u00e1g 180 orsz\u00e1g\u00e1b\u00f3l \u00e9rkez\u0151 v\u00e1llalatok haszn\u00e1lj\u00e1k. K\u00f6z\u00f6tt\u00fck vannak: <noindex><a rel=\"nofollow\" href=\"https:\/\/builders.intel.com\/docs\/select-solutions-hardened-security-with-lockheed-martin.pdf\">Intel<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"https:\/\/www.dellemc.com\/en-us\/collaterals\/unauth\/white-papers\/products\/converged-infrastructure\/vxflex_overview_whitepaper.pdf\">Dell<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"https:\/\/www.crn.com\/news\/data-center\/video\/lenovo-on-why-its-software-defined-business-is-experiencing-triple-digit-growth\">Lenovo<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"https:\/\/www.redhat.com\/en\/blog\/red-hat-enterprise-linux-8-improves-performance-modern-workloads\">Red Hat<\/a><\/noindex> \u00e9s sokan m\u00e1sok <noindex><a rel=\"nofollow\" href=\"https:\/\/www.hammerdb.com\/benchmarks.html\">egy\u00e9b<\/a><\/noindex>. Ha szeretn\u00e9 \u00f6n\u00e1ll\u00f3an felfedezni az eszk\u00f6z lehet\u0151s\u00e9geit, akkor elkezdheti a <noindex><a rel=\"nofollow\" href=\"https:\/\/www.hammerdb.com\/document.html\">hivatalos \u00fatmutat\u00f3k<\/a><\/noindex>.<\/p>\n<p>\n<img decoding=\"async\" alt=\"Hogyan \u00e9rt\u00e9kelj\u00fck a Linux szerverek teljes\u00edtm\u00e9ny\u00e9t: ny\u00edlt forr\u00e1sk\u00f3d\u00fa benchmark eszk\u00f6z\u00f6k\" src=\"\/wp-content\/uploads\/2019\/08\/f4ddc38624823e4f5b7366bd2928b787.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Fot\u00f3 \u2014 <noindex><a rel=\"nofollow\" href=\"https:\/\/www.flickr.com\/photos\/places_lost\/33144378635\">elavult helyek<\/a><\/noindex> \u2014 CC BY<\/i><\/p>\n<p><\/p>\n<h2><noindex><a rel=\"nofollow\" href=\"https:\/\/sevenzip.osdn.jp\/chm\/cmdline\/commands\/bench.htm\">7-Zip<\/a><\/noindex><\/h2>\n<p>\nEz az archiver be\u00e9p\u00edtett benchmarkkal rendelkezik, amely a processzorok sebess\u00e9g\u00e9nek tesztel\u00e9s\u00e9re szolg\u00e1l egy adott f\u00e1jl mennyis\u00e9g t\u00f6m\u00f6r\u00edt\u00e9se sor\u00e1n. Emellett alkalmas a RAM hib\u00e1inak ellen\u0151rz\u00e9s\u00e9re is. A tesztekhez <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/LZMA\">LZMA<\/a><\/noindex> (Lempel\u2013Ziv\u2013Markov chain Algorithm) algoritmust haszn\u00e1l. <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/%D0%9C%D0%B5%D1%82%D0%BE%D0%B4_%D1%81%D0%B6%D0%B0%D1%82%D0%B8%D1%8F_%D1%81_%D0%B8%D1%81%D0%BF%D0%BE%D0%BB%D1%8C%D0%B7%D0%BE%D0%B2%D0%B0%D0%BD%D0%B8%D0%B5%D0%BC_%D1%81%D0%BB%D0%BE%D0%B2%D0%B0%D1%80%D1%8F\">Az algoritmus a<\/a><\/noindex>sz\u00f3t\u00e1ralap\u00fa adat t\u00f6m\u00f6r\u00edt\u00e9si s\u00e9m\u00e1n alapul.<\/p>\n<pre><code class=\"bash\">P\u00e9ld\u00e1ul egy sz\u00e1lon \u00e9s 64 megab\u00e1jt sz\u00f3t\u00e1rral a benchmark ind\u00edt\u00e1s\u00e1hoz elegend\u0151 be\u00edrni a parancsot:<\/code><\/pre>\n<p>\n7z b -mmt1 -md26<\/p>\n<p><\/p>\n<h2><noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Dd_(Unix)\">DD<\/a><\/noindex><\/h2>\n<p>\nA program az eredm\u00e9nyt MIPS (milli\u00f3s utas\u00edt\u00e1s m\u00e1sodpercenk\u00e9nt) form\u00e1tumban adja meg, ami h\u00e1tr\u00e1nyk\u00e9nt eml\u00edthet\u0151. Ez a param\u00e9ter alkalmas a hasonl\u00f3 architekt\u00far\u00e1kkal rendelkez\u0151 processzorok teljes\u00edtm\u00e9ny\u00e9nek \u00f6sszehasonl\u00edt\u00e1s\u00e1ra, de k\u00fcl\u00f6nb\u00f6z\u0151 architekt\u00far\u00e1k eset\u00e9n alkalmazhat\u00f3s\u00e1ga korl\u00e1tozott.<\/p>\n<p>Parancssori eszk\u00f6z, amely f\u00e1jlokat konvert\u00e1l \u00e9s m\u00e1sol. Az I\/O-tesztek egyszer\u0171 lebonyol\u00edt\u00e1s\u00e1ra a SCSI-n is haszn\u00e1lhat\u00f3. Alap\u00e9rtelmez\u00e9s szerint szinte b\u00e1rmilyen GNU\/Linux rendszeren elind\u00edthat\u00f3. <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Dd_(Unix)#Benchmarking_drive_performance\">A wiki-oldalon<\/a><\/noindex> megtal\u00e1lhat\u00f3<\/p>\n<pre><code class=\"bash\">a lemez teljes\u00edtm\u00e9ny\u00e9nek \u00e9rt\u00e9kel\u00e9s\u00e9re szolg\u00e1l\u00f3 parancs 1024 b\u00e1jt m\u00e9ret\u0171 blokkokn\u00e1l:\n<\/code><\/pre>\n<p>\ndd if=\/dev\/zero bs=1024 count=1000000 of=file_1GB\ndd if=file_1GB of=\/dev\/null bs=1024 <noindex><a rel=\"nofollow\" href=\"https:\/\/romanrm.net\/dd-benchmark\">haszn\u00e1lhatunk<\/a><\/noindex> A DD-t eml\u00edt\u00e9st \u00e9rdemel, mint egyszer\u0171 CPU-benchmarkot is. Igaz, ehhez sz\u00fcks\u00e9ges egy tov\u00e1bbi program, amely er\u0151forr\u00e1s-ig\u00e9nyes sz\u00e1m\u00edt\u00e1sokat v\u00e9gez. P\u00e9ld\u00e1ul a hash-\u00f6sszeg \u00e9rt\u00e9k\u00e9nek kisz\u00e1m\u00edt\u00e1s\u00e1hoz sz\u00fcks\u00e9ges eszk\u00f6z. <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/Md5sum\">md5sum<\/a><\/noindex>.<\/p>\n<pre><code class=\"bash\">dd if=\/dev\/zero bs=1M count=1024 | md5sum<\/code><\/pre>\n<p>\nA fenti parancs megmutatja, hogy a rendszer milyen gyorsan (MB\/s) dolgozza fel a hossz\u00fa numerikus sorozatokat. B\u00e1r a szak\u00e9rt\u0151k szerint ez a parancs csak durva teljes\u00edtm\u00e9ny\u00e9rt\u00e9kel\u00e9sre alkalmas. Fontos azt is megjegyezni, hogy a DD alacsony szint\u0171 m\u0171veletek v\u00e9grehajt\u00e1s\u00e1ra lehet\u0151s\u00e9get ad a merevlemezeken. Ez\u00e9rt a seg\u00e9dprogram haszn\u00e1lata sor\u00e1n \u00f3vatosnak kell lenni, hogy ne vesz\u00edts\u00fck el az adataink egy r\u00e9sz\u00e9t (a DD elnevez\u00e9st n\u00e9ha tr\u00e9f\u00e1san disk destroyer-nek is h\u00edvj\u00e1k).<\/p>\n<p><\/p>\n<blockquote><p><b>Mir\u0151l \u00edrunk blogjainkban \u00e9s k\u00f6z\u00f6ss\u00e9gi m\u00e9di\u00e1nkban:<\/b><\/p>\n<p><img decoding=\"async\" alt=\"Hogyan \u00e9rt\u00e9kelj\u00fck a Linux szerverek teljes\u00edtm\u00e9ny\u00e9t: ny\u00edlt forr\u00e1sk\u00f3d\u00fa benchmark eszk\u00f6z\u00f6k\" src=\"\/wp-content\/uploads\/2019\/08\/33eecb5cdf1b774150ab07c86be240a5.jpg\" style=\"display:block;margin: 0 auto;\" \/> <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/1cloud\/blog\/459994\/\">Kutat\u00e1s: A Linux tov\u00e1bbra is a legn\u00e9pszer\u0171bb oper\u00e1ci\u00f3s rendszer a felh\u0151ben.<\/a><\/noindex><br \/>\n<img decoding=\"async\" alt=\"Hogyan \u00e9rt\u00e9kelj\u00fck a Linux szerverek teljes\u00edtm\u00e9ny\u00e9t: ny\u00edlt forr\u00e1sk\u00f3d\u00fa benchmark eszk\u00f6z\u00f6k\" src=\"\/wp-content\/uploads\/2019\/08\/bce25c9c9ab2dc264256cfc3d1b2fa24.jpg\" style=\"display:block;margin: 0 auto;\" \/> <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/1cloud\/blog\/459628\/\">Az Open Invention Network (OIN) t\u00f6bb mint h\u00e1romezer licencelt partnert sz\u00e1ml\u00e1l \u2013 mit jelent ez a ny\u00edlt szoftver sz\u00e1m\u00e1ra?<\/a><\/noindex><\/p>\n<p><img decoding=\"async\" alt=\"Hogyan \u00e9rt\u00e9kelj\u00fck a Linux szerverek teljes\u00edtm\u00e9ny\u00e9t: ny\u00edlt forr\u00e1sk\u00f3d\u00fa benchmark eszk\u00f6z\u00f6k\" src=\"\/wp-content\/uploads\/2019\/08\/f764e93d7e9569e1ceea85e0d8a09b80.jpg\" style=\"display:block;margin: 0 auto;\" \/> <noindex><a rel=\"nofollow\" href=\"https:\/\/1cloud.ru\/blog\/linux-server-security-advices?utm_source=habrahabr&amp;utm_medium=cpm&amp;utm_campaign=bench3&amp;utm_content=blog\">Elemz\u00fcnk a szem\u00e9lyes adatok \u00e9s az I.B. v\u00e9delm\u00e9re vonatkoz\u00f3 aj\u00e1nl\u00e1sokat \u2014 mire \u00e9rdemes figyelni<\/a><\/noindex><br \/>\n<img decoding=\"async\" alt=\"Hogyan \u00e9rt\u00e9kelj\u00fck a Linux szerverek teljes\u00edtm\u00e9ny\u00e9t: ny\u00edlt forr\u00e1sk\u00f3d\u00fa benchmark eszk\u00f6z\u00f6k\" src=\"\/wp-content\/uploads\/2019\/08\/3d97751636907b8cf97fd6072c3f0e4b.jpg\" style=\"display:block;margin: 0 auto;\" \/> <noindex><a rel=\"nofollow\" href=\"https:\/\/1cloud.ru\/blog\/minimizazia-it-riskov?utm_source=habrahabr&amp;utm_medium=cpm&amp;utm_campaign=bench3&amp;utm_content=blog\">Kock\u00e1zatok minimaliz\u00e1l\u00e1sa: hogyan ne vesz\u00edtse el az adatait<\/a><\/noindex><\/p>\n<p><img decoding=\"async\" alt=\"Hogyan \u00e9rt\u00e9kelj\u00fck a Linux szerverek teljes\u00edtm\u00e9ny\u00e9t: ny\u00edlt forr\u00e1sk\u00f3d\u00fa benchmark eszk\u00f6z\u00f6k\" src=\"\/wp-content\/uploads\/2019\/08\/3252529d7ba6a90e5d117a2f40102a23.jpg\" style=\"display:block;margin: 0 auto;\" \/> <noindex><a rel=\"nofollow\" href=\"https:\/\/www.facebook.com\/1cloudru\/photos\/a.1526614574327724\/2382871935368646\">K\u00f6nyvek azok sz\u00e1m\u00e1ra, akik m\u00e1r foglalkoznak rendszeradminisztr\u00e1ci\u00f3val vagy csak tervezik, hogy elkezdik<\/a><\/noindex><br \/>\n<img decoding=\"async\" alt=\"Hogyan \u00e9rt\u00e9kelj\u00fck a Linux szerverek teljes\u00edtm\u00e9ny\u00e9t: ny\u00edlt forr\u00e1sk\u00f3d\u00fa benchmark eszk\u00f6z\u00f6k\" src=\"\/wp-content\/uploads\/2019\/08\/a87d207dba47092805d9071f83977b3c.jpg\" style=\"display:block;margin: 0 auto;\" \/> <noindex><a rel=\"nofollow\" href=\"https:\/\/www.facebook.com\/1cloudru\/photos\/a.1526614574327724\/2372990136356826\">Szokatlan domainz\u00f3n\u00e1k a projektj\u00e9hez<\/a><\/noindex><\/p><\/blockquote>\n<p>Forr\u00e1s: <a content=\"nofollow\" rel=\"nofollow\" 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