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OpCache WordPress

WordPress Settings

find /var/www/html/ -type f -name "*.php" -printf "%s\n" | gawk -M '{t+=$1}END{print t}' | numfmt --to=iec # Number of PHP Files to accelerate cd /var/www/html/ find . -name "*.php" | wc -l
Code language: PHP (php)

PHP.ini Settings

php -i | grep "Loaded Configuration File" #Edit Opcache settings nano /etc/php/7.2/apache2/php.ini
Code language: PHP (php)
[opcache] ; Determines if Zend OPCache is enabled opcache.enable=1 opcache.enable_cli=1 ; The OPcache shared memory storage size. opcache.memory_consumption=256 ; The amount of memory for interned strings in Mbytes. opcache.interned_strings_buffer=16 ; The maximum number of keys (scripts) in the OPcache hash table. ; Only numbers between 200 and 1000000 are allowed. opcache.max_accelerated_files=10000 ; The maximum percentage of "wasted" memory until a restart is scheduled. ;opcache.max_wasted_percentage=5 ; When this directive is enabled, the OPcache appends the current working ; directory to the script key, thus eliminating possible collisions between ; files with the same name (basename). Disabling the directive improves ; performance, but may break existing applications. ;opcache.use_cwd=1 ; When disabled, you must reset the OPcache manually or restart the ; webserver for changes to the filesystem to take effect. opcache.validate_timestamps=1 ; How often (in seconds) to check file timestamps for changes to the shared ; memory storage allocation. ("1" means validate once per second, but only ; once per request. "0" means always validate) opcache.revalidate_freq=60 ; Enables or disables file search in include_path optimization ;opcache.revalidate_path=0 ; If disabled, all PHPDoc comments are dropped from the code to reduce the ; size of the optimized code. ;opcache.save_comments=1 ; Allow file existence override (file_exists, etc.) performance feature. ;opcache.enable_file_override=0 ; A bitmask, where each bit enables or disables the appropriate OPcache ; passes ;opcache.optimization_level=0xffffffff ;opcache.inherited_hack=1 ;opcache.dups_fix=0 ; The location of the OPcache blacklist file (wildcards allowed). ; Each OPcache blacklist file is a text file that holds the names of files ; that should not be accelerated. The file format is to add each filename ; to a new line. The filename may be a full path or just a file prefix ; (i.e., /var/www/x blacklists all the files and directories in /var/www ; that start with 'x'). Line starting with a ; are ignored (comments). ;opcache.blacklist_filename= ; Allows exclusion of large files from being cached. By default all files ; are cached. ;opcache.max_file_size=0 ; Check the cache checksum each N requests. ; The default value of "0" means that the checks are disabled. ;opcache.consistency_checks=0 ; How long to wait (in seconds) for a scheduled restart to begin if the cache ; is not being accessed. ;opcache.force_restart_timeout=180 ; OPcache error_log file name. Empty string assumes "stderr". ;opcache.error_log= ; All OPcache errors go to the Web server log. ; By default, only fatal errors (level 0) or errors (level 1) are logged. ; You can also enable warnings (level 2), info messages (level 3) or ; debug messages (level 4). ;opcache.log_verbosity_level=1 ; Preferred Shared Memory back-end. Leave empty and let the system decide. ;opcache.preferred_memory_model= ; Protect the shared memory from unexpected writing during script execution. ; Useful for internal debugging only. ;opcache.protect_memory=0 ; Allows calling OPcache API functions only from PHP scripts which path is ; started from specified string. The default "" means no restriction ;opcache.restrict_api= ; Mapping base of shared memory segments (for Windows only). All the PHP ; processes have to map shared memory into the same address space. This ; directive allows to manually fix the "Unable to reattach to base address" ; errors. ;opcache.mmap_base= ; Enables and sets the second level cache directory. ; It should improve performance when SHM memory is full, at server restart or ; SHM reset. The default "" disables file based caching. ;opcache.file_cache= ; Enables or disables opcode caching in shared memory. ;opcache.file_cache_only=0 ; Enables or disables checksum validation when script loaded from file cache. ;opcache.file_cache_consistency_checks=1 ; Implies opcache.file_cache_only=1 for a certain process that failed to ; reattach to the shared memory (for Windows only). Explicitly enabled file ; cache is required. ;opcache.file_cache_fallback=1 ; Enables or disables copying of PHP code (text segment) into HUGE PAGES. ; This should improve performance, but requires appropriate OS configuration. ;opcache.huge_code_pages=1 ; Validate cached file permissions. ;opcache.validate_permission=0 ; Prevent name collisions in chroot'ed environment. ;opcache.validate_root=0 ; If specified, it produces opcode dumps for debugging different stages of ; optimizations. ;opcache.opt_debug_level=0
Code language: Lisp (lisp)


Install the plugin


cd ~ git clone cd opcache-gui/ ls sudo mkdir /var/www/html2 sudo mkdir /var/www/html2/opcacheGUI/ sudo cp index.php /var/www/html2/opcacheGUI/ cd /var/www/html2/opcacheGUI/ sudo chown www-data:www-data index.php sudo chmod 755 index.php
Code language: PHP (php)

Apache Enablement

sudo cp /etc/apache2/sites-available/000-default.conf /etc/apache2/sites-available/opcache.conf ................................................ <VirtualHost *:81> ServerAdmin webmaster@localhost DocumentRoot /var/www/html2/ ErrorLog ${APACHE_LOG_DIR}/error.log CustomLog ${APACHE_LOG_DIR}/access.log combined </VirtualHost> ................................................ sudo nano /etc/apache2/ports.conf ............. Listen 81 ............. apache2ctl configtest sudo a2ensite opcache.conf sudo systemctl reload apache2 sudo service apache2 restart sudo service apache2 status sudo netstat -tulpn | grep LISTEN
Code language: HTML, XML (xml)

Access OPCache statistics on Local IP

Code language: JavaScript (javascript)