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- config CACHEFILES
- tristate "Filesystem caching on files"
- depends on FSCACHE && BLOCK
- help
- This permits use of a mounted filesystem as a cache for other
- filesystems - primarily networking filesystems - thus allowing fast
- local disk to enhance the speed of slower devices.
- See Documentation/filesystems/caching/cachefiles.txt for more
- information.
- config CACHEFILES_DEBUG
- bool "Debug CacheFiles"
- depends on CACHEFILES
- help
- This permits debugging to be dynamically enabled in the filesystem
- caching on files module. If this is set, the debugging output may be
- enabled by setting bits in /sys/modules/cachefiles/parameter/debug or
- by including a debugging specifier in /etc/cachefilesd.conf.
- config CACHEFILES_HISTOGRAM
- bool "Gather latency information on CacheFiles"
- depends on CACHEFILES && PROC_FS
- help
- This option causes latency information to be gathered on CacheFiles
- operation and exported through file:
- /proc/fs/cachefiles/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/cachefiles.txt for more
- information.
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