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fs/fscache/Kconfig 2.26 KB
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  config FSCACHE
  	tristate "General filesystem local caching manager"
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  	help
  	  This option enables a generic filesystem caching manager that can be
  	  used by various network and other filesystems to cache data locally.
  	  Different sorts of caches can be plugged in, depending on the
  	  resources available.
  
  	  See Documentation/filesystems/caching/fscache.txt for more information.
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  config FSCACHE_STATS
  	bool "Gather statistical information on local caching"
  	depends on FSCACHE && PROC_FS
  	help
  	  This option causes statistical information to be gathered on local
  	  caching and exported through file:
  
  		/proc/fs/fscache/stats
  
  	  The gathering of statistics adds a certain amount of overhead to
  	  execution as there are a quite a few stats gathered, and on a
  	  multi-CPU system these may be on cachelines that keep bouncing
  	  between CPUs.  On the other hand, the stats are very useful for
  	  debugging purposes.  Saying 'Y' here is recommended.
  
  	  See Documentation/filesystems/caching/fscache.txt for more information.
  
  config FSCACHE_HISTOGRAM
  	bool "Gather latency information on local caching"
  	depends on FSCACHE && PROC_FS
  	help
  	  This option causes latency information to be gathered on local
  	  caching and exported through file:
  
  		/proc/fs/fscache/histogram
  
  	  The generation of this histogram adds a certain amount of overhead to
  	  execution as there are a number of points at which data is gathered,
  	  and on a multi-CPU system these may be on cachelines that keep
  	  bouncing between CPUs.  On the other hand, the histogram may be
  	  useful for debugging purposes.  Saying 'N' here is recommended.
  
  	  See Documentation/filesystems/caching/fscache.txt for more information.
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  config FSCACHE_DEBUG
  	bool "Debug FS-Cache"
  	depends on FSCACHE
  	help
  	  This permits debugging to be dynamically enabled in the local caching
  	  management module.  If this is set, the debugging output may be
  	  enabled by setting bits in /sys/modules/fscache/parameter/debug.
  
  	  See Documentation/filesystems/caching/fscache.txt for more information.
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  config FSCACHE_OBJECT_LIST
  	bool "Maintain global object list for debugging purposes"
  	depends on FSCACHE && PROC_FS
  	help
  	  Maintain a global list of active fscache objects that can be
  	  retrieved through /proc/fs/fscache/objects for debugging purposes