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+.TH iofile.d 1m  "$Date:: 2007-08-05 #$" "USER COMMANDS"
+.SH NAME
+iofile.d \- I/O wait time by file and process. Uses DTrace.
+.SH SYNOPSIS
+.B iofile.d
+.SH DESCRIPTION
+This prints the total I/O wait times for each filename by process.
+This can help determine why an application is performing poorly by
+identifying which file they are waiting on, and the total times.
+Both disk and NFS I/O are measured.
+
+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 io provider.
+.SH EXAMPLES
+.TP
+Sample until Ctrl\-C is hit then print report,
+# 
+.B iofile.d
+.PP
+.SH FIELDS
+.TP
+PID
+process ID
+.TP
+CMD
+process name
+.TP
+TIME
+total wait time for disk events, us
+.TP
+FILE
+file pathname
+.PP
+.SH BASED ON
+/usr/demo/dtrace/iocpu.d
+.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
+iofile.d will sample until Ctrl\-C is hit. 
+.SH SEE ALSO
+iosnoop(1M), dtrace(1M)
+