{"id":30053,"date":"2019-10-31T21:33:26","date_gmt":"2019-10-31T18:33:26","guid":{"rendered":"https:\/\/prohoster.info\/blog\/optimizatsiya-proizvoditelnosti-apache2\/"},"modified":"2019-10-31T21:33:26","modified_gmt":"2019-10-31T18:33:26","slug":"optimizatsiya-proizvoditelnosti-apache2","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/optimizatsiya-proizvoditelnosti-apache2","title":{"rendered":"Ottimizzazione delle prestazioni di apache2","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Molti utilizzano apache2 come server web. Tuttavia, pochi si preoccupano di ottimizzarne le prestazioni, il che influisce direttamente sulla velocit\u00e0 di caricamento delle pagine del sito, sulla velocit\u00e0 di elaborazione degli script (in particolare php), nonch\u00e9 sull'aumento del carico della CPU e sull'incremento della RAM utilizzata. <\/p>\n<p>Pertanto, il seguente manuale dovrebbe aiutare gli utenti principianti (e non solo).<br \/>\nTutti gli esempi seguenti sono stati utilizzati su Raspberry PI 3, Debian 9, Apache 2.4.38, PHP 7.3.<br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\nIniziamo.<\/p>\n<h3>1. Disabilitazione dei moduli non utilizzati<\/h3>\n<p>\nIl primo metodo consiste nel semplice atto di disabilitare i moduli che non si utilizzano:<\/p>\n<p>L'elenco dei moduli attualmente utilizzati pu\u00f2 essere visualizzato con il comando:<\/p>\n<pre><code class=\"bash\">apache2ctl -M<\/code><\/pre>\n<p>\nPer disabilitare un modulo si utilizza il comando:<\/p>\n<pre><code class=\"bash\">a2dismod *nome del modulo*<\/code><\/pre>\n<p>\nDi conseguenza, per attivare un modulo, si utilizza il comando:<\/p>\n<pre><code class=\"bash\">a2enmod *nome del modulo*<\/code><\/pre>\n<p>\nSi noti che quando si utilizza <i>a2dismod<\/i>, il nome del modulo deve essere scritto senza la parola modulo stessa.<\/p>\n<p>Ad esempio, se nel risultato del comando <i>apache2ctl -M<\/i> hai visto <i>proxy_module<\/i>, per disabilitarlo \u00e8 necessario utilizzare il comando \u2014 <i>a2dismod proxy<\/i><\/p>\n<p>I moduli che maggiormente sovraccaricano il sistema (per esperienza personale) sono:<\/p>\n<ul>\n<li>PHP, Ruby, Perl e altri moduli per vari linguaggi di scripting<\/li>\n<li><a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/it\/ssl-sertifikat\/\"   title=\"SSL\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2258\">SSL<\/a><\/li>\n<li>Rewrite<\/li>\n<li>CGI<\/li>\n<\/ul>\n<p>\nQuindi, nei casi in cui questi moduli non siano necessari, consiglio di disattivarli.<\/p>\n<p>Inoltre, dopo aver disattivato un modulo, consiglio di utilizzare il comando \u2014 <i>apache2ctl configtest<\/i>, che verificher\u00e0 la configurazione dei siti utilizzati e, se uno dei moduli disattivati risulta necessario, restituir\u00e0 un errore.<\/p>\n<h3>2. Cambiare MPM (Multi-Processing Module) e utilizzare php-fpm<\/h3>\n<p>\nPer impostazione predefinita, dopo l'installazione, apache2 utilizza MPM Prefork (1 thread per connessione), che riduce notevolmente le prestazioni, ma migliora stabilit\u00e0 e sicurezza.<\/p>\n<p>Tuttavia, per ottimizzare le prestazioni, consiglio di utilizzare MPM Worker, che consente di utilizzare pi\u00f9 thread per una singola connessione.<\/p>\n<p>Per attivarlo, utilizziamo i seguenti comandi:<\/p>\n<pre><code class=\"bash\">a2dismod mpm_prefork  \/\/Disattiviamo prefork\na2dismod php7.3  \/\/Disattiviamo il modulo php che dipende da prefork\na2enmod mpm_worker  \/\/Attiviamo worker\n<\/code><\/pre>\n<p>\nTuttavia, utilizzando Worker, potresti incontrare un problema, poich\u00e9 il modulo php7.3 dipende dal modulo Prefork.<\/p>\n<p>Per risolvere questo problema, installeremo il modulo php7.3-fpm, che verr\u00e0 utilizzato per l'esecuzione degli script php:<\/p>\n<pre><code class=\"bash\">apt-get update &amp;&amp; apt-get install php7.3-fpm  \/\/Installiamo\nsystemctl enable php7.3-fpm &amp;&amp; systemctl start php7.3-fpm  \/\/Aggiungiamo all'avvio automatico e avviamo\na2enmod php7.3-fpm &amp;&amp; a2enconf php7.3-fpm.conf  \/\/Attiviamo il modulo e la sua configurazione\n<\/code><\/pre>\n<p>\nVa notato che l'uso di php-fpm ridurr\u00e0 anche la quantit\u00e0 di RAM utilizzata dal processo apache2 e migliorer\u00e0 leggermente l'esecuzione degli script php.<\/p>\n<h3>3. Conclusione<\/h3>\n<p>\nIn questo modo, con queste semplici azioni, siamo riusciti a ottimizzare le prestazioni e ridurre il carico sulla macchina (in questo caso RPI3).<\/p>\n<p>Certo, ci sono centinaia di altre possibilit\u00e0 di ottimizzazione, come abilitare la compressione (che \u00e8 davvero utile, ma in gran parte gi\u00e0 abilitata per impostazione predefinita), modificare i parametri (file di configurazione) MPM, disabilitare HostnameLookups, ecc., ma in questo articolo ho cercato di evidenziare precisamente i punti che mi hanno aiutato di pi\u00f9 e spero possano aiutare anche altri.<br \/>\n<br \/>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/444732\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041c\u043d\u043e\u0433\u0438\u0435 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0442 apache2 \u0432 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u0432\u0435\u0431-\u0441\u0435\u0440\u0432\u0435\u0440\u0430. \u041e\u0434\u043d\u0430\u043a\u043e \u043c\u0430\u043b\u043e \u043a\u0442\u043e \u0437\u0430\u0434\u0443\u043c\u044b\u0432\u0430\u0435\u0442\u0441\u044f \u043e\u0431 \u043e\u043f\u0442\u0438\u043c\u0438\u0437\u0430\u0446\u0438\u0438 \u0435\u0433\u043e \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438, \u0447\u0442\u043e \u043f\u0440\u044f\u043c\u043e \u043f\u0440\u043e\u043f\u043e\u0440\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u043e \u0441\u043a\u0430\u0437\u044b\u0432\u0430\u0435\u0442\u0441\u044f \u043d\u0430 \u0441\u043a\u043e\u0440\u043e\u0441\u0442\u0438 \u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0438 \u0441\u0442\u0440\u0430\u043d\u0438\u0446 \u0441\u0430\u0439\u0442\u0430, \u0441\u043a\u043e\u0440\u043e\u0441\u0442\u0438 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0441\u043a\u0440\u0438\u043f\u0442\u043e\u0432 (\u0432 \u0447\u0430\u0441\u0442\u043d\u043e\u0441\u0442\u0438 php), \u0430 \u0442\u0430\u043a\u0436\u0435 \u043d\u0430 \u0440\u043e\u0441\u0442\u0435 \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0438 \u043d\u0430 \u0426\u041f \u0438 \u0443\u0432\u0435\u043b\u0438\u0447\u0435\u043d\u0438\u0438 \u043e\u0431\u044a\u0451\u043c\u0430 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u043e\u0439 \u041e\u0417\u0423. \u0422\u0430\u043a\u0438\u043c \u043e\u0431\u0440\u0430\u0437\u043e\u043c, \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u0439 \u043c\u0430\u043d\u0443\u0430\u043b, \u0434\u043e\u043b\u0436\u0435\u043d \u043f\u043e\u043c\u043e\u0447\u044c \u043d\u0430\u0447\u0438\u043d\u0430\u044e\u0449\u0438\u043c (\u0438 \u043d\u0435 \u0442\u043e\u043b\u044c\u043a\u043e) \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f\u043c. \u0412\u0441\u0435 \u043d\u0438\u0436\u0435\u043f\u0440\u0438\u0432\u0435\u0434\u0451\u043d\u043d\u044b\u0435 \u043f\u0440\u0438\u043c\u0435\u0440\u044b [&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":[10],"tags":[],"class_list":["post-30053","post","type-post","status-publish","format-standard","hentry","category-blog"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.0.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041c\u043d\u043e\u0433\u0438\u0435 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0442 apache2 \u0432 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u0432\u0435\u0431-\u0441\u0435\u0440\u0432\u0435\u0440\u0430.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" 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