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APC INFO Monitor

How to Configure APC Cache on Virtual Servers with PHP running under FCGId

…d thread limits to sane levels in httpd.conf If possible, you may wish to run Apache with Worker MPM instead of Prefork MPM. More information about Apache Worker MPM vs. Prefork MPM » Installation Suggestions and Modification of Defaults Be sure to install the newest version of APC, 3.1.9 as of the last revision of this post (I assume you know how to install and configure all the packages mentioned in this post): pecl install apc Choose “… 1, 0, 0, 0 and 1738.31

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Tuning Apache and MySQL for Best Performance in a Shared Virtual Hosting Environment

…umber slightly above the reported highest usage. Doing so will allow you to set higher values for the individual cache settings which affect the thread cache size, because the total thread buffer memory size is multiplied by maxconnections. Feedback is available in the reports for “Total buffers” and “Highest usage of available connections”. After you have the proper settings for maxclients and maxconnections, restart http… 32, 0, 1, 0 and 1699.39

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Varnish VCL and Config for WordPress with W3 Total Cache

…ent. # # # Maximum number of open files (for ulimit -n) NFILES=131072 # # Locked shared memory (for ulimit -l) # Default log size is 82MB + header MEMLOCK=82000 # # Maximum size of corefile (for ulimit -c). Default in Fedora is 0 # DAEMON_COREFILE_LIMIT=”unlimited” # # Set this to 1 to make init script reload try to switch vcl without restart. # To make this work, you need to set the following variables # explicit: VARNISH_VCL_CONF, VARNISH_ADMIN… 4, 0, 0, 0 and 1258.32

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WordPress with W3 Total Cache on Nginx with APC (Virtualmin)

Virtualmin now includes support for Nginx web server. I deploy many WordPress sites with W3 Total Cache and APC Alternative PHP Cache, so I was very interested to see how Nginx performance compares to Apache for WordPress, and whether APC and W3TC would play nice with Nginx. I prefer to install WordPress in public_html/wordpress for ease of development, compatibility with other scripts, etc. Accordingly, the suggested configuration is for WordPr… 2, 0, 0, 0 and 1180.49

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Apache config for Worker MPM vs Prefork MPM

Some installations of Apache will have been compiled to work with either Prefork or Worker MPM, but most by default are compiled only to work with Prefork. Changing to Worker MPM may allow your server to handle much higher traffic, more user sessions, with less RAM use. Your site or server will not scale well if it is running Prefork MPM. Worker is a bit more difficult to set up properly, and has some restrictions regarding functionality of PHP… 1, 0, 0, 0 and 648.64

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SoccerNews.com website

Apache and MySql Performance Tuning for High Traffic WordPress Website on Cpanel

…server with 8GB RAM, it was crashing frequently under load. The developer tried implementing APC Alternative PHP Cache and W3 Total Cache, but these measures turned out to be incompatible with some of the custom PHP code and the software architecture of the Cpanel server. Haphazardly implementing randomly suggested “solutions” had actually made the problems worse, resulting in an “own goal” that brought down the server. I… 8, 0, 0, 0 and 415.12

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APC INFO Monitor

APC Cache Considerations for Virtual Hosting Environments

APC cache does not work well in a virtual hosting environment unless PHP is running as FCGID, and every individual virtual host has a unique PHP.ini and a unique fcgiwrapper. This is not the case with many virtual hosting environments because the memory and CPU requirements are too great. I suggest using Virtualmin for a shared hosting environment with APC cache, because it does allow to set php.ini and fcgiwrapper for every individual virtual h… 6, 1, 0, 0 and 415.12

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Résumé

Chris Gilligan Information Architect, Web Server Administrator, Media Producer web • video • print chris@chrisgilligan.net chrisgilligan.com I design and produce information and communication media for university, corporate, small business, manufacturing and non-profit clients: web sites Information architecture and design for open source content management systems Linux Apache MySQL PHP web server administration Postfix Dovecot Sendmail […]

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Web Hosting

Decades of experience hosting websites, from small local sites with only a few html pages, to high-traffic sites with thousands of users and pages.  Website hosting, evolved Web hosting has changed dramatically in the last few years. The majority of accounts are now running PHP scripts and MySQL, whereas in the past most accounts were only […]

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Automated WordPress Installation Via Custom Virtualmin Script Installer

Updated: please read instructions again and find link to new example file. WordPress (or any other script) can automatically install during Virtualmin > Create Virtual Server. Virtualmin automatically creates users, MySQL database, and installs WordPress in the public_html root, then gives a link to the WordPress Installer. You can even create a custom installer with a set of plugins and themes. To create a custom script installer with plugin… 2, 0, 0, 0 and 103.78

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