File: MemUsage.st

package info (click to toggle)
gnu-smalltalk 3.2.4-2.1
  • links: PTS, VCS
  • area: main
  • in suites: jessie, jessie-kfreebsd
  • size: 32,688 kB
  • ctags: 14,104
  • sloc: ansic: 87,424; sh: 22,729; asm: 8,465; perl: 4,513; cpp: 3,548; xml: 1,669; awk: 1,581; yacc: 1,357; makefile: 1,237; lisp: 855; lex: 843; sed: 258; objc: 124
file content (76 lines) | stat: -rw-r--r-- 2,424 bytes parent folder | download | duplicates (6)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
"======================================================================
|
|   Compute the amount of memory and the number of instances for each
|   class in the GNU Smalltalk system.
|
|
 ======================================================================"

 
"======================================================================
|
| Copyright 1988,92,94,95,99,2000,2002 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 2, 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  
|
 ======================================================================"


!ObjectMemory class methodsFor: 'demo'!

memoryUsage
    | t numObjs classObjs totalInstanceSize instVarSize |
    numObjs := t := 0.
    ObjectMemory compact.
    Object withAllSubclasses do: [ :class |
	class printNl.
	totalInstanceSize := classObjs := 0.
	instVarSize := class instSize.
    	(class inheritsFrom: ContextPart) ifFalse: [
	    class allInstancesDo: [ :inst |
		totalInstanceSize := totalInstanceSize +
				     ((Memory at: (ObjectMemory addressOf: inst)) * 4).
		classObjs := classObjs + 1 ] 
	    ].
						    
        Transcript nextPutAll: '  Instances: '. classObjs printNl.
	Transcript nextPutAll: '  Size: '. totalInstanceSize printNl.
	Transcript nl.
	t := t + totalInstanceSize.
	numObjs := numObjs + classObjs ].

    ^numObjs -> t
!

histogram
    | sizes size  |
    ObjectMemory compact.
    sizes := Bag new.
    Object withAllSubclasses do: [ :class |
	(class inheritsFrom: ContextPart)
	    ifFalse: [
		class allInstancesDo: [ :inst |
		    size := (Memory at: (ObjectMemory addressOf: inst)).
		    sizes add: size ] 
	    ].
    ].

    sizes printNl.
! !

ObjectMemory memoryUsage printNl!
ObjectMemory histogram printNl!