fatrace

System wide file access event reporting utility

The fatrace trace uses fanotify, a couple of /proc lookups and some glue to trace file access events system-wide, in an effort to identify processes which keep waking up the disk even when the computer is idle. By default, it monitors the whole system, i.e. all mounts except virtual ones like /proc, tmpfs, etc. It can be told to monitor just the mount of the current directory. The log can be written to a file and runtime be capped. Optional time stamps and PID filters are also provided.

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