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====== Configuration Setting: readdircache ======

Each search on the wiki reads the whole index directory. Each search starts with a listing of this directory to find the index files, scanning the index directory each time is time consuming with a constant series of disk access.

This special feature when set to a different value than ''0'' register the list of index files in a cache file and read this file instead of the directory. The value indicates the lifetime in seconds of the cache file. This feature is recommended on a large wiki or when you have a poor disk access.

When this cache is used a normal search only uses file_exists 1 or more times, and not readdir all the directory. The wildcard search uses the cache file for getting all used word lengths if it is enabled.

  * Type: Number
  * Default: ''0''


===== See also =====

  * [[:config:|Configuring DokuWiki]]

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