40 lines
1.4 KiB
Plaintext
40 lines
1.4 KiB
Plaintext
|
|
||
|
|
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.
|