Re: [Pharo-project] why are Bitmaps instanciated even in headless mode?

Aug. 24, 2010


      2010/8/24 Mariano Martinez Peck <marianopeck@gmail.com>:
...
2010/8/24 Sven Van Caekenberghe <sven@beta9.be>
...
Well, my 1.1 dev image has:
Class Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  code space # instances Â inst space percent
Bitmap Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â 3753 Â  Â  Â  Â 8906 Â  Â  Â 19427212
Â 31.9
ByteString Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â 2515 Â  Â  Â 190202 Â  Â  Â 17459895
Â 28.6
Array Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  2176 Â  Â  Â 137567 Â  Â  Â  5198744
8.5
CompiledMethod Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  19130 Â  Â  Â  79223 Â  Â  Â  4888481
8.0
ByteSymbol Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â 1062 Â  Â  Â  52650 Â  Â  Â  1330679
2.2
MethodDictionary Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â 2135 Â  Â  Â  Â 9854 Â  Â  Â  1302376
2.1
MCVersionInfo Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  1313 Â  Â  Â  22841 Â  Â  Â  Â 913640
1.5
Association Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â 710 Â  Â  Â  74216 Â  Â  Â  Â 890592
1.5
Character Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  6355 Â  Â  Â  66219 Â  Â  Â  Â 794628
1.3
DateAndTime Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  7893 Â  Â  Â  28026 Â  Â  Â  Â 672624
1.1
ByteArray Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  3458 Â  Â  Â  Â  640 Â  Â  Â  Â 639048
1.0
While my 1.1. deploy image (incl Seaside 3 and Glorp) has:
CompiledMethod Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  18784 Â  Â  Â  53888 Â  Â  Â  3082849
Â 20.7
Bitmap Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â 3753 Â  Â  Â  Â  184 Â  Â  Â  2837256
Â 19.0
ByteString Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â 2515 Â  Â  Â  47865 Â  Â  Â  2713211
Â 18.2
Array Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  2176 Â  Â  Â  45399 Â  Â  Â  2277268
Â 15.3
ByteSymbol Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â 1062 Â  Â  Â  37522 Â  Â  Â  Â 925078
6.2
Character Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  6355 Â  Â  Â  66219 Â  Â  Â  Â 794628
5.3
MethodDictionary Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â 2135 Â  Â  Â  Â 6296 Â  Â  Â  Â 468456
3.1
WeakArray Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â 718 Â  Â  Â  Â  127 Â  Â  Â  Â 324104
2.2
Association Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â 710 Â  Â  Â  23189 Â  Â  Â  Â 278268
1.9
ByteArray Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  3370 Â  Â  Â  Â  341 Â  Â  Â  Â 213357
1.4
ClassOrganizer Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â 1326 Â  Â  Â  Â 6112 Â  Â  Â  Â 195584
1.3
Metaclass Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  3909 Â  Â  Â  Â 3078 Â  Â  Â  Â 123120
0.8
This reduction is done by ScriptLoader>>#cleanUpForRelease (after deleting
all unit test packages).
Thanks Sven. It seems my mail was not clear at all. I know that with
#cleanUpForRelease it will reduce, but my question is....if I understand
correlty what a Bitmap is, why they are nstantiated when I am running
headless?Â  shouldn't the amount of instances be 0?
I think I don't understand what really the -headless does. I thought the
world was not display, not Bitmap was instanciated, etc...
Sure, you can still draw on the display, bitblit things, create
morphs, move windows around, query pixels, etc. Display is a global
variable that doesn't just disappear. Otherwise things like RFB Server
and the Seaside Screen wouldn't work.

Lukas

-- 
Lukas Renggli
www.lukas-renggli.ch