fs/fscache/Kconfig

   1
   2 config FSCACHE
   3         tristate "General filesystem local caching manager"
   4         help
   5           This option enables a generic filesystem caching manager that can be
   6           used by various network and other filesystems to cache data locally.
   7           Different sorts of caches can be plugged in, depending on the
   8           resources available.
   9
  10           See Documentation/filesystems/caching/fscache.txt for more information.
  11
  12 config FSCACHE_STATS
  13         bool "Gather statistical information on local caching"
  14         depends on FSCACHE && PROC_FS
  15         help
  16           This option causes statistical information to be gathered on local
  17           caching and exported through file:
  18
  19                 /proc/fs/fscache/stats
  20
  21           The gathering of statistics adds a certain amount of overhead to
  22           execution as there are a quite a few stats gathered, and on a
  23           multi-CPU system these may be on cachelines that keep bouncing
  24           between CPUs.  On the other hand, the stats are very useful for
  25           debugging purposes.  Saying 'Y' here is recommended.
  26
  27           See Documentation/filesystems/caching/fscache.txt for more information.
  28
  29 config FSCACHE_HISTOGRAM
  30         bool "Gather latency information on local caching"
  31         depends on FSCACHE && PROC_FS
  32         help
  33           This option causes latency information to be gathered on local
  34           caching and exported through file:
  35
  36                 /proc/fs/fscache/histogram
  37
  38           The generation of this histogram adds a certain amount of overhead to
  39           execution as there are a number of points at which data is gathered,
  40           and on a multi-CPU system these may be on cachelines that keep
  41           bouncing between CPUs.  On the other hand, the histogram may be
  42           useful for debugging purposes.  Saying 'N' here is recommended.
  43
  44           See Documentation/filesystems/caching/fscache.txt for more information.
  45
  46 config FSCACHE_DEBUG
  47         bool "Debug FS-Cache"
  48         depends on FSCACHE
  49         help
  50           This permits debugging to be dynamically enabled in the local caching
  51           management module.  If this is set, the debugging output may be
  52           enabled by setting bits in /sys/modules/fscache/parameter/debug.
  53
  54           See Documentation/filesystems/caching/fscache.txt for more information.
  55
  56 config FSCACHE_OBJECT_LIST
  57         bool "Maintain global object list for debugging purposes"
  58         depends on FSCACHE && PROC_FS
  59         help
  60           Maintain a global list of active fscache objects that can be
  61           retrieved through /proc/fs/fscache/objects for debugging purposes