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Full Discussion: Buffer Cache
Operating Systems HP-UX Buffer Cache Post 67156 by ALTRUNVRSOFLN on Monday 21st of March 2005 04:36:24 PM
Old 03-21-2005
Question Buffer Cache

What is the "Buffer Cache" used for?
ALTRUNVRSOFLN
 

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Cache::FileCache(3pm)					User Contributed Perl Documentation				     Cache::FileCache(3pm)

NAME
Cache::FileCache -- implements the Cache interface. DESCRIPTION
The FileCache class implements the Cache interface. This cache stores data in the filesystem so that it can be shared between processes. SYNOPSIS
use Cache::FileCache; my $cache = new Cache::FileCache( { 'namespace' => 'MyNamespace', 'default_expires_in' => 600 } ); See Cache::Cache for the usage synopsis. METHODS
See Cache::Cache for the API documentation. Clear( [$cache_root] ) See Cache::Cache, with the optional $cache_root parameter. Purge( [$cache_root] ) See Cache::Cache, with the optional $cache_root parameter. Size( [$cache_root] ) See Cache::Cache, with the optional $cache_root parameter. OPTIONS
See Cache::Cache for standard options. Additionally, options are set by passing in a reference to a hash containing any of the following keys: cache_root The location in the filesystem that will hold the root of the cache. Defaults to the 'FileCache' under the OS default temp directory ( often '/tmp' on UNIXes ) unless explicitly set. cache_depth The number of subdirectories deep to cache object item. This should be large enough that no cache directory has more than a few hundred objects. Defaults to 3 unless explicitly set. directory_umask The directories in the cache on the filesystem should be globally writable to allow for multiple users. While this is a potential security concern, the actual cache entries are written with the user's umask, thus reducing the risk of cache poisoning. If you desire it to only be user writable, set the 'directory_umask' option to '077' or similar. Defaults to '000' unless explicitly set. PROPERTIES
See Cache::Cache for default properties. (get|set)_cache_root See the definition above for the option cache_root (get|set)_cache_depth See the definition above for the option cache_depth (get|set)_directory_umask See the definition above for the option directory_umask SEE ALSO
Cache::Cache AUTHOR
Original author: DeWitt Clinton <dewitt@unto.net> Last author: $Author: dclinton $ Copyright (C) 2001-2003 DeWitt Clinton perl v5.12.4 2009-03-01 Cache::FileCache(3pm)
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