System Administration Guide: Devices and File Systems

Viewing CacheFS Statistics

The following table explains the terminology that is displayed in the statistics output for CacheFS file systems.

Table 20–2 CacheFS Statistics Terminology

Output Term 


cache hit rate

The rate of cache hits compared to cache misses, followed by the actual number of hits and misses. A cache hit occurs when the user wants to perform an operation on a file or files, and the file or files are actually in the cache. A cache miss occurs when the file is not in the cache. The load on the server is the sum of cache misses, consistency checks, and modifications (modifies).

consistency checks

The number of consistency checks performed, followed by the number that passed, and the number that failed. 


The number of modify operations. For example, writes or creates.