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+.TH readdist.d 1m  "$Date:: 2007-08-05 #$" "USER COMMANDS"
+.SH NAME
+readdist.d \- read distrib. by process name. Uses DTrace.
+.SH SYNOPSIS
+.B readdist.d
+.SH DESCRIPTION
+readdist.d is a DTrace OneLiner to a report the read size and
+number of occurrences as a frequency distribution by process name.
+
+This can be useful to identify the behaviour of processes
+that are doing reads. Are they using many small reads, or 
+fewer large reads.
+
+Docs/oneliners.txt and Docs/Examples/oneliners_examples.txt
+in the DTraceToolkit contain this as a oneliner that can be cut-n-paste
+to run.
+
+Since this uses DTrace, only the root user or users with the
+dtrace_kernel privilege can run this command.
+.SH OS
+Solaris
+.SH STABILITY
+stable - needs the sysinfo provider.
+.SH EXAMPLES
+.TP
+This samples until Ctrl\-C is hit.
+# 
+.B readdist.d
+.PP
+.SH FIELDS
+.TP
+process name
+The process name. There may be several PIDs that have the 
+same process name, for example with numerous instances of "bash". The
+value reported will be the sum of them all.
+.TP
+value
+The size in bytes
+.TP
+count
+The number of occurrences that were at least this size 
+.PP
+.SH DOCUMENTATION
+See the DTraceToolkit for further documentation under the 
+Docs directory. The DTraceToolkit docs may include full worked
+examples with verbose descriptions explaining the output.
+.SH EXIT
+readdist.d will sample until Ctrl\-C is hit.
+.SH AUTHOR
+Brendan Gregg
+[Sydney, Australia]
+.SH SEE ALSO
+dtrace(1M), truss(1)
+