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- "Compute the amount of memory and the number of instances for each
- Class in the GNU Smalltalk system."
-
-
- "======================================================================
- |
- | Copyright (C) 1990, 1991 Free Software Foundation, Inc.
- | Written by Steve Byrne.
- |
- | This file is part of GNU Smalltalk.
- |
- | GNU Smalltalk is free software; you can redistribute it and/or modify it
- | under the terms of the GNU General Public License as published by the Free
- | Software Foundation; either version 1, or (at your option) any later version.
- |
- | GNU Smalltalk is distributed in the hope that it will be useful, but WITHOUT
- | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- | FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
- | details.
- |
- | You should have received a copy of the GNU General Public License along with
- | GNU Smalltalk; see the file LICENSE. If not, write to the Free Software
- | Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
- |
- ======================================================================"
-
-
-
- !Object methodsFor: 'demo'!
-
- showMemUsage
- | t numObjs classObjs totalInstanceSize instVarSize |
- numObjs _ t _ 0.
- Object withAllSubclasses do:
- [ :class | class printNl.
- totalInstanceSize _ classObjs _ 0.
- instVarSize _ class instSize.
- (class == MethodContext or: [ class == BlockContext ])
- ifFalse: [ class allInstancesDo:
- [ :inst | totalInstanceSize _ totalInstanceSize +
- ((WordMemory at: (Memory addressOf: inst)) * 4).
- classObjs _ classObjs + 1 ]
- ].
-
- ' Instances: ' print. classObjs printNl.
- ' Size: ' print. totalInstanceSize printNl.
- stdout nl.
- t _ t + totalInstanceSize.
- numObjs _ numObjs + classObjs ].
-
- numObjs printNl.
- t printNl
- !!
-
- Object showMemUsage!
-