mprof-heap-viewer(1) General Commands Manual mprof-heap-viewer(1)NAME
mprof-heap-viewer - GUI viewer for the logging profiler heap snapshots
SYNOPSIS
mprof-heap-viewer file
DESCRIPTION
mprof-heap-viewer GUI viewer for the logging profiler heap snapshots
WARNING: this application is unfinished and experimental. Nevertheless it should work, and bug reports are encouraged.
This program decodes the contents of a logging profiler output file and locates all the heap snapshots inside it. The user can then select
each individual snapshot and decide to load it in memory and explore its contents.
The GUI is organized to work on "object sets" (listed in a tree view on the left). All operations are performed with a popup menu on the
choosen set.
Initially the sets are the heap snapshots (of course a heap snapshot can be considered a set of objects!). For each set the GUI shows on
the right a list that breaks it down by class (one row for each class).
The user can then refine each set using a "filter", to select a subset. Examples of filters are "all objects of class X", or "all objects
that reference an object of class X". This way the user explores the sets breaking them down to subsets (each subset in the GUI is a child
of its owner set on the tree view).
Moreover the user can issue a "compare" operation between two arbitrary sets A and B, which will compute two subsets: "A - B" (the objects
of A which are not in B, a subsect of A) and "B - A" (the reverse). This can help in understanding what changed on the heap between
garbage collections.
Options
None
ENVIRONMENT VARIABLES
None
SEE ALSO mono(1)COPYRIGHT
Copyright (C) 2008 Novell, Inc (http://www.novell.com)
mprof-heap-viewer(1)
Check Out this Related Man Page
Heap::Elem::Str(3pm) User Contributed Perl Documentation Heap::Elem::Str(3pm)NAME
Heap::Elem::Str - String Heap Elements
SYNOPSIS
use Heap::Elem::Str( StrElem );
use Heap::Fibonacci;
my $heap = Heap::Fibonacci->new;
my $elem;
foreach $i ( 'aa'..'bz' ) {
$elem = StrElem( $i );
$heap->add( $elem );
}
while( defined( $elem = $heap->extract_top ) ) {
print "Smallest is ", $elem->val, "
";
}
DESCRIPTION
Heap::Elem::Str is used to wrap string values into an element that can be managed on a heap. The top of the heap will have the smallest
element still remaining. (See Heap::Elem::StrRev if you want the heap to always return the largest element.)
The details of the Elem interface are described in Heap::Elem.
The details of using a Heap interface are described in Heap.
AUTHOR
John Macdonald, john@perlwolf.com
COPYRIGHT
Copyright 1998-2007, O'Reilly & Associates.
This code is distributed under the same copyright terms as perl itself.
SEE ALSO Heap(3), Heap::Elem(3), Heap::Elem::StrRev(3).
perl v5.8.8 2007-10-23 Heap::Elem::Str(3pm)
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