NAME

       massif-visualizer - visualizer for Valgrind Massif memory-usage tracking tool

SYNOPSIS

       massif-visualizer [massif-data-file]

DESCRIPTION

       Massif  Visualizer  is  a  tool  that  visualizes massif data. You run your application in
       Valgrind with --tool=massif and then open the generated massif.out.%pid in the visualizer.
       Gzip or Bzip2 compressed massif files can also be opened transparently.

       The application consists of three parts:

       The Overview Chart

       The  first  thing  you'll  notice is a nice chart that displays the same as e.g.  ms_print
       does in Ascii-Art: total memory consumption over time.

       Massif-Visualizer goes beyond that by additionally showing  the  top  most  cost-intensive
       locations  in your code as a stacked graph below the total cost.  The graph also reacts on
       user-interaction.

       This view you can use for:

       • checking whether your application has memory leaks

       • finding expensive peaks

       • finding locations that significantly contribute to the  overall  memory  consumption  of
         your application

       The Snapshot Data Tree

       Directly  next to the above chart, you'll see a tree with all of the massif data. The tree
       items are colored depending on their cost, with red  opaque  being  the  most  interesting
       (peak)  elements. Green/transparent items are negligible and don't add significant cost to
       your application.

       You can also search the tree and when you  select  something  in  it,  the  snapshot  gets
       highlighted in the overview chart and the call graph gets updated.

       The Call Graph for Detailed Snapshots

       Massif  generates  a few detailed snapshots that essentially make up the tree. If you want
       to get an overview in a more comfortable way than the simple tree view, switch over to the
       detailed  snapshot tab and see the tree visualized as a call graph. Zoom in, zoom out, use
       the birds eye view and see what contributes to a given snapshot. Note that function  calls
       with the same memory cost are grouped to easily find the interesting parts.

OPTIONS

       --help Show help about options

       --help-all
              Show all options

       --author
              Show author information

       -v, --version
              Show version information

       --license
              Show license information

AUTHOR

       Written by Milian Wolff.

REPORTING BUGS

       Please report bugs on https://bugs.kde.org under the massif-visualizer product.

COPYRIGHT

       Copyright  ©  2011  Milian  Wolff.   License  GPLv2+:  GNU  GPL  version  2  or  later  <‐
       http://gnu.org/licenses/gpl.html>.  This is free software: you  are  free  to  change  and
       redistribute it.  There is NO WARRANTY, to the extent permitted by law.

SEE ALSO

       valgrind(1), ms_print(1)

AUTHOR

       Milian Wolff <mail@milianw.de>

                                            2011-11-21                       MASSIF-VISUALIZER(1)