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APC INFO Monitor

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

…Match RemoveHandler .php RemoveHandler .php5 IPCCommTimeout 12 You must “babysit” the configuration: use the APC monitor (apc.php) to see how many files are being cached, and how much memory (apc.shm_size) is needed to avoid fragmentation, which will cause the 500 errors. If fragmentation rises quickly to 100%, memory usage is full, and cache full count […]

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

…al domain will load its own php.ini file, so you can add the APC directives to that file (/home/domainname/etc/php5/php.ini) Add the following to php.ini (adjust to your requirements) [APC] extension = apc.enabled = 1 apc.shm_segments = 1 apc.shm_size = 12M apc.optimization = 0 apc.num_files_hint = 256 apc.user_entries_hint = 1024 apc.ttl = 0 apc.user_ttl = […]

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

…1600 table_definition_cache = 1600 max_allowed_packet = 4M key_buffer = 1G interactive_timeout = 2 wait_timeout = 5 long_query_time = 1 log_slow_queries = ON open_files_limit = 3200 innodb_buffer_pool_size = 26M join_buffer_size = 4M tmp_table_size = 72M max_heap_table_size = 72M max_connections = 80 [mysqld_safe] log-error=/var/log/mysqld.log pid-file=/var/run/mysqld/ This is for example only! table_cache should be set a little… 38, […]

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APC INFO Monitor

APC Cache Considerations for Virtual Hosting Environments

…irtual server. However with 200+ virtual hosts all running PHP script packages, as is the case with a commodity shared hosting server, this will use a lot of memory, and you will need somewhere in the neighborhood of 10-30GB apc.shm_size if you attempt to configure a single APC cache for the entire server. My web […]

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Varnish VCL and Config for WordPress with W3 Total Cache

…M / G / T suffix, # # or in percentage of available disk space using the % suffix. VARNISH_STORAGE_SIZE=3G # # # Backend storage specification # malloc runs from RAM, file from file VARNISH_STORAGE=”malloc,${VARNISH_STORAGE_SIZE}” #VARNISH_STORAGE=”file,${VARNISH_STORAGE_FILE},${VARNISH_STORAGE_SIZE}” # # # Default TTL used when the backend does not specify one VARNISH_TTL=120 # # # DAEMON_OPTS is […]

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Install phpMyAdmin with SSL on CentOS, Amazon Linux, RedHat (Apache or NginX)

…t:9002; fastcgi_param HTTPS on; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME /usr/share$fastcgi_script_name; include /etc/nginx/fastcgi_params; fastcgi_buffer_size 128k; fastcgi_buffers 256 4k; fastcgi_busy_buffers_size 256k; fastcgi_temp_file_write_size 256k; fastcgi_intercept_errors on; } location ~* ^/phpMyAdmin/(.+\.(jpg|jpeg|gif|css|png|js|ico|html|xml|txt))$ { root /usr/share/; } } location /phpmyadmin { rewrite ^/* /phpMyAdmin… 3, 0, 0, 0 and 200.55

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

…he publisher after responding to a plea for assistance in a support forum. Though the site was running on a dedicated 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 […]

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Chris Gilligan Web Developer, Information Architect, Web Server Administrator, Media Producer web • video • print 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 Front-end UI design, HTML, PHP, LESS Linux Apache […]

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