fs/fscache/Kconfig v3.0-rc7

FSCACHE

General filesystem local caching manager

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.

FSCACHE_STATS

Gather statistical information on local caching

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.

FSCACHE_HISTOGRAM

Gather latency information on local caching

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.

FSCACHE_DEBUG

Debug FS-Cache

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.

FSCACHE_OBJECT_LIST

Maintain global object list for debugging purposes

Maintain a global list of active fscache objects that can be
retrieved through /proc/fs/fscache/objects for debugging purposes