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9.2.7 Statsfs

A file system that will record statistics on the interposed file system, and report them via console messages or syslog. Information that can be recorded includes number of times files or directories are accessed, and performance measures such as overall time to perform various vnode operations. This file system can serve as an optimizing or profiling tool for other stackable file systems, by identifying potential bottlenecks.

Erez Zadok