{"id":2277,"date":"2014-02-06T16:51:57","date_gmt":"2014-02-06T21:51:57","guid":{"rendered":"http:\/\/blog.funio.com\/fr\/?p=2277"},"modified":"2014-02-07T13:57:34","modified_gmt":"2014-02-07T18:57:34","slug":"funio-ajoute-1-300-000-mo-de-memoire-vive","status":"publish","type":"post","link":"https:\/\/blog.funio.com\/fr\/2014\/02\/funio-ajoute-1-300-000-mo-de-memoire-vive\/","title":{"rendered":"Funio ajoute 1 300 000 Mo de m\u00e9moire vive!"},"content":{"rendered":"

160 barrettes de 8Go de m\u00e9moire vive (RAM). Soit 1.3 t\u00e9raoctets, ou 1 300 000 m\u00e9gaoctets de RAM. Des chiffres qui nous ont bien fait sourire. \u00ab Si on m’avait dit, lorsque nous avons install\u00e9 notre premier serveur partag\u00e9 avec 256Mo de RAM en 1996, qu’on ajouterait un jour plus d’un million de megs de m\u00e9moire sur nos serveurs, je n’y aurais pas cru! \u00bb, s’est exclam\u00e9 Sylvain Leclair, notre chef bien-aim\u00e9. Malgr\u00e9 la fascination de Sylvain \u00e0 voir ce nombre impressionnant, nos techniciens habitent d\u00e9j\u00e0 le langage des t\u00e9raoctets dans leurs quotidiens. Il reste n\u00e9anmoins que 1.3 To de m\u00e9moire est un nombre consid\u00e9rable et non-n\u00e9gligeable. Ce n’est pas de l’espace disque, quand m\u00eame!<\/p>\n

L’utilisation courante de nos serveurs est maintenue \u00e0 moins de 50% de leurs capacit\u00e9 totale, ce qui nous permet d’assurer des performances optimales en tout temps. Alors \u00e0 quoi bon augmenter la m\u00e9moire? Nous pr\u00e9f\u00e9rons parler de pr\u00e9vention, car toutes ces barrettes serviront presqu’uniquement pour la redondance des serveurs.<\/p>\n

Nouvelles technologies, ressources et performances<\/h2>\n

Cet ajout consid\u00e9rable de m\u00e9moire offre des chargements plus rapides, ainsi que moins de risques de saturation des ressources du serveur. En plus, l’augmentation de m\u00e9moire nous permet de supporter de nouvelles technologies qui peuvent demander plus de ressources.<\/p>\n

Par exemple, nous avons r\u00e9cemment remplac\u00e9 le module de traitement PHP vers FastCGI<\/a>. Malgr\u00e9 que FastCGI est plus performant et plus rapide dans le traitement des requ\u00eates PHP que suPHP (la version pr\u00e9c\u00e9dente que nous utilisions), il est aussi plus gourmand en m\u00e9moire. Nous savions que FastCGI demandait plus de m\u00e9moire, mais sans croire que ce serait si significatif.<\/p>\n

Certains diront que cette augmentation de consommation, allant parfois jusqu’\u00e0 pr\u00e8s de 60% de la capacit\u00e9 serveur est n\u00e9gligeable, et qu’elle laisse encore un large tampon pour absorber les impr\u00e9vus. Ils n’auront pas tort! Par contre, lorsque nous observons nos standards de qualit\u00e9 et des ressources requises pour notre plateforme de redondance, cette situation devient non-viable.<\/p>\n

Filet de s\u00e9curit\u00e9 pour la redondance<\/h2>\n

Nos serveurs d’h\u00e9bergement sont configur\u00e9s sur une infrastructure redondante de haute qualit\u00e9. En r\u00e9sum\u00e9, le serveur A est r\u00e9pliqu\u00e9 en temps r\u00e9el sur le serveur B. Dans l’\u00e9ventualit\u00e9 d’une panne sur le serveur A, le serveur B prend le relais ainsi que la charge du serveur A, \u00e9vitant ainsi l’interruption des services du serveur A. Dans une telle situation, nous avons besoin de deux fois plus de m\u00e9moire pour assurer le maintient des performances des deux serveurs qui se retrouvent sur un seul.<\/p>\n

Le basculement d’un serveur \u00e0 l’autre est une action plut\u00f4t rare (quelques fois par ann\u00e9e), qui ne dure pas tr\u00e8s longtemps (moins de 24 heures) et qui cause seulement de l\u00e9gers ralentissements pendant la p\u00e9riode de l’intervention. Mais nous consid\u00e9rons que les impacts lors d’une interruption doivent \u00eatre limit\u00e9s au maximum et id\u00e9alement passer inaper\u00e7u.<\/p>\n

Nous ajouterons donc 1.3To de m\u00e9moire sur nos serveurs dans les prochaines semaines, au bonheur de tous!
\n\"All<\/p>\n","protected":false},"excerpt":{"rendered":"

160 barrettes de 8Go de m\u00e9moire vive (RAM). Soit 1.3 t\u00e9raoctets, ou 1 300 000 m\u00e9gaoctets de RAM. Des chiffres qui nous ont bien fait sourire. \u00ab Si on m’avait dit, lorsque nous avons install\u00e9 notre premier serveur partag\u00e9 avec 256Mo de RAM en 1996, qu’on ajouterait un jour plus d’un million de megs de […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,21],"tags":[7,107,106],"class_list":["post-2277","post","type-post","status-publish","format-standard","hentry","category-funio","category-infrastructures","tag-default","tag-httpmedia-funio-comimageskbblogmemoryram-jpg","tag-httpmedia-funio-comimageskbblogram-doge2-png"],"yoast_head":"\nFunio ajoute 1 300 000 Mo de m\u00e9moire vive! — Funio Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.funio.com\/fr\/2014\/02\/funio-ajoute-1-300-000-mo-de-memoire-vive\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Funio ajoute 1 300 000 Mo de m\u00e9moire vive! — Funio Blog\" \/>\n<meta property=\"og:description\" content=\"160 barrettes de 8Go de m\u00e9moire vive (RAM). Soit 1.3 t\u00e9raoctets, ou 1 300 000 m\u00e9gaoctets de RAM. Des chiffres qui nous ont bien fait sourire. \u00ab Si on m’avait dit, lorsque nous avons install\u00e9 notre premier serveur partag\u00e9 avec 256Mo de RAM en 1996, qu’on ajouterait un jour plus d’un million de megs de [...]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/blog.funio.com\/fr\/2014\/02\/funio-ajoute-1-300-000-mo-de-memoire-vive\/\" \/>\n<meta property=\"og:site_name\" content=\"Funio Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/FunioHosting\" \/>\n<meta property=\"article:published_time\" content=\"2014-02-06T21:51:57+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2014-02-07T18:57:34+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/media.funio.com\/images\/kb\/blog\/RAMpron.png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@funiohosting\" \/>\n<meta name=\"twitter:site\" content=\"@funiohosting\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/blog.funio.com\\\/fr\\\/2014\\\/02\\\/funio-ajoute-1-300-000-mo-de-memoire-vive\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/blog.funio.com\\\/fr\\\/2014\\\/02\\\/funio-ajoute-1-300-000-mo-de-memoire-vive\\\/\"},\"author\":{\"name\":\"\",\"@id\":\"\"},\"headline\":\"Funio ajoute 1 300 000 Mo de m\u00e9moire vive!\",\"datePublished\":\"2014-02-06T21:51:57+00:00\",\"dateModified\":\"2014-02-07T18:57:34+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/blog.funio.com\\\/fr\\\/2014\\\/02\\\/funio-ajoute-1-300-000-mo-de-memoire-vive\\\/\"},\"wordCount\":540,\"commentCount\":0,\"image\":{\"@id\":\"https:\\\/\\\/blog.funio.com\\\/fr\\\/2014\\\/02\\\/funio-ajoute-1-300-000-mo-de-memoire-vive\\\/#primaryimage\"},\"thumbnailUrl\":\"http:\\\/\\\/media.funio.com\\\/images\\\/kb\\\/blog\\\/RAMpron.png\",\"keywords\":[\"Default\",\"http:\\\/\\\/media.funio.com\\\/images\\\/kb\\\/blog\\\/MemoryRam.jpg\",\"http:\\\/\\\/media.funio.com\\\/images\\\/kb\\\/blog\\\/ram-doge2.png\"],\"articleSection\":[\"Funio\",\"infrastructures\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/blog.funio.com\\\/fr\\\/2014\\\/02\\\/funio-ajoute-1-300-000-mo-de-memoire-vive\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/blog.funio.com\\\/fr\\\/2014\\\/02\\\/funio-ajoute-1-300-000-mo-de-memoire-vive\\\/\",\"url\":\"https:\\\/\\\/blog.funio.com\\\/fr\\\/2014\\\/02\\\/funio-ajoute-1-300-000-mo-de-memoire-vive\\\/\",\"name\":\"Funio ajoute 1 300 000 Mo de m\u00e9moire vive! 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