1mprof-heap-viewer(1) General Commands Manual mprof-heap-viewer(1)
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6 mprof-heap-viewer - GUI viewer for the logging profiler heap snapshots
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9 mprof-heap-viewer file
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12 mprof-heap-viewer GUI viewer for the logging profiler heap snapshots
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14 WARNING: this application is unfinished and experimental. Nevertheless
15 it should work, and bug reports are encouraged.
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17 This program decodes the contents of a logging profiler output file and
18 locates all the heap snapshots inside it. The user can then select
19 each individual snapshot and decide to load it in memory and explore
20 its contents.
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22 The GUI is organized to work on "object sets" (listed in a tree view on
23 the left). All operations are performed with a popup menu on the
24 choosen set.
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26 Initially the sets are the heap snapshots (of course a heap snapshot
27 can be considered a set of objects!). For each set the GUI shows on
28 the right a list that breaks it down by class (one row for each class).
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30 The user can then refine each set using a "filter", to select a subset.
31 Examples of filters are "all objects of class X", or "all objects that
32 reference an object of class X". This way the user explores the sets
33 breaking them down to subsets (each subset in the GUI is a child of its
34 owner set on the tree view).
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36 Moreover the user can issue a "compare" operation between two arbitrary
37 sets A and B, which will compute two subsets: "A - B" (the objects of A
38 which are not in B, a subsect of A) and "B - A" (the reverse). This
39 can help in understanding what changed on the heap between garbage col‐
40 lections.
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49 mono(1)
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52 Copyright (C) 2008 Novell, Inc (http://www.novell.com)
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56 mprof-heap-viewer(1)