1 .TH hotspot.d 1m "$Date:: 2007-08-05 #$" "USER COMMANDS"
3 hotspot.d \- print disk event by location. Uses DTrace.
7 hotspot.d is a simple DTrace script to determine if disk activity is
8 occuring in the one place - a "hotspot". This helps us understand the
9 system's usage of a disk, it does not imply that the existance or not
10 of a hotspot is good or bad (often may be good, less seeking).
12 Since this uses DTrace, only the root user or users with the
13 dtrace_kernel privilege can run this command.
17 stable - needs the io provider.
20 Sample until Ctrl\-C is hit then print report,
36 location of disk event, megabytes
42 See the DTraceToolkit for further documentation under the
43 Docs directory. The DTraceToolkit docs may include full worked
44 examples with verbose descriptions explaining the output.
46 hotspot.d will sample until Ctrl\-C is hit.