| config FSCACHE | |
| tristate "General filesystem local caching manager" | |
| 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. | |
| 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. | |
| 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. | |
| 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 |