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Description of problem:

  The usage of diskdevstat looks like this:

  A simple systemtap script to record harddisk activity of processes and display
  statistics for read/write operations.

  usage: diskdevstat [update-interval] [total-duration] [display-histogram]

         update-interval      in seconds, the default is 5
         total-interval       in seconds, the default is 86400
         display-histogram    anything, unset by default

  It can be confusing to have "total-duration" and then "total-interval" to name the same thing. 

Version-Release number of selected component (if applicable):

  # rpm -q tuned tuned-utils
  tuned-0.2.19-9.el6.noarch
  tuned-utils-0.2.19-9.el6.noarch

Resolved upstream:
1.0: http://git.fedorahosted.org/cgit/tuned.git/commit/?h=1.0&id=66d8e39
master: http://git.fedorahosted.org/cgit/tuned.git/commit/?id=045e1ac

This request was not resolved in time for the current release.
Red Hat invites you to ask your support representative to
propose this request, if still desired, for consideration in
the next release of Red Hat Enterprise Linux.

Created attachment 777452 [details]
Proposed fix

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHBA-2013-1623.html