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rwbytype.d(1m)                                  USER COMMANDS                                 rwbytype.d(1m)



NAME
       rwbytype.d - read/write bytes by vnode type. Uses DTrace.

SYNOPSIS
       rwbytype.d

DESCRIPTION
       This  program  identifies  the vnode type of read/write activity - whether that is for regular files,
       sockets, character special devices, etc. This is measuring at the application level, so file activity
       may well be cached by the system.

       Since this uses DTrace, only users with root privileges can run this command.

EXAMPLES
       This samples until Ctrl-C is hit.
              # rwbytype.d


FIELDS
       PID    process ID

       CMD    process name

       VNODE  vnode type (describes I/O type)

       DIR    direction, Read or Write

       BYTES  total bytes


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.

EXIT
       rwbytype.d will sample until Ctrl-C is hit.

AUTHOR
       Brendan Gregg [Sydney, Australia]

SEE ALSO
       rwbypid.d(1M), rwbbypid.d(1M), dtrace(1M)




version 0.70                                    Jan 11, 2006                                  rwbytype.d(1m)

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