1 .TH dnlcsnoop.d 1m "$Date:: 2007-08-05 #$" "USER COMMANDS"
3 dnlcsnoop.d \- snoop DNLC activity. Uses DTrace.
7 The DNLC is the Directory Name Lookup Cache. Filename lookups often
8 return a hit from here, before needing to traverse the regular file
9 system cache or go to disk.
11 Since this uses DTrace, only the root user or users with the
12 dtrace_kernel privilege can run this command.
16 unstable - this script uses fbt provider probes which may change for
17 future updates of the OS, invalidating this script. Please read
18 Docs/Notes/ALLfbt_notes.txt for further details about these fbt scripts.
21 Sample until Ctrl\-C is hit then print report,
34 Elapsed time for lookup, us
43 See the DTraceToolkit for further documentation under the
44 Docs directory. The DTraceToolkit docs may include full worked
45 examples with verbose descriptions explaining the output.
47 dnlcsnoop.d will sample until Ctrl\-C is hit.