Note: it's a fork of https://github.com/pressjitsu/pomodoro/, initially.

The WordPress gettext implementation is very slow. It uses objects that cannot be cached into memory without reinstanting them.

Pomodoro stores all seen translations as a PHP hashtable (array), that can be subsequently stored into a file as PHP code and levereged via OPcache when loaded.

Moreover, pomodoro does lazyloading for strings that are only encountered in output. It does not preload everything it can for a domain until there's no other choice.

Seems like that. It's better to measure for every certain site separately.

Example on a vanilla ru_RU locale WordPress site:

Before:

After:

Drop pomodoro.php into wp-content/mu-plugins and enjoy the added speed :)

The more plugins you have the better the performance gains.

You can use POMODORO_CACHE_DIR constant to change cache directory (needs full path).

# print stats about cache directory and files
# to see more raw data use --format parameter
wp pomodoro stats
wp pomodoro stats --format=print_r
wp pomodoro stats --format=var_dump
wp pomodoro stats --format=json
wp pomodoro stats --format=json --pretty

# list cached files
wp pomodoro list

# prune cached files
# note: remember that the removed files can be recreated immediately 
#       by other requests or CLI-commands done after the moment of removing.
wp pomodoro prune

# prune cached files for a specific textdomain
# note: all cached files for that textdomain will be removed
wp pomodoro prune <textdomain>

# lint cached files
wp pomodoro lint

# print the plugin version
wp pomodoro version

If necessary, define POMODORO_DONT_UPDATE constant with true (boolean) value to disable updating of cached files during a current request.
It's used inside wp pomodoro prune command.

GPLv3