Image Builder (Re: Mythical small kernel images?)
PhiHo Hoang
phiho.hoang at rogers.com
Tue Feb 11 20:07:50 UTC 2003
Hi Alejandro,
You are my hero ;-)
> If it is really needed we can ask for a permition to made
> it under Squeak-L.
Please do so. I am looking forward for your package in SqueakMap.
> Out images can determine the minimum requirements for the VM...
> They can also be used to build the minimum VM that can run them.
Would you please elaborate on this.
BTW, I put your 'sample2.image' thru the analyzer :
1/- There are 124 classes in the image.
1/- 34 classes with 0 instances (so shouldn't be in the image):
- ProtoObject Class
-ArrayedCollection
-Behavior
-Bitmap
-Boolean
-ByteArray
-Class
-ClassDescription
-ClassOrganizer
-Collection
-ContextPart
-Environment
-ExternalFunction
-ExternalLibrary
-ExternalObject
-ExternalStructure
-IdentityDictionary
-InstructionStream
-Integer
-Link
-LookupKey
-Magnitude
-Message
-Number
-Object
-ReadOnlyVariableBinding
-Rectangle
-SequenceableCollection
-Set
-SmallInteger
-SystemDictionary
-TranslatedMethod
-Win32Console
-Win32Handle
2/- Consequently :
- 33 classes of above classes respectively
are not needed in the image.
- The following 8 classes can be removed from
the specialObjects:
* ExternalLibrary
* ExternalFunction
* ExternalStructure
* TranslatedMethod
* ByteArray
* Message
* SmallInteger
* Bitmap
3/- The rest of the classes (57) and number of instances are:
(What is that sole instance of Float, Point is doing
in this sample2.image ?
For that matter, would you please verify that these 57
classes are really needed ? and what does Fenix mean ?)
1 BlockContext
1 FenixEnvironment
1 Float
1 LargePositiveInteger
1 Point
1 Process
1 ProcessorScheduler
1 Semaphore
1 UndefinedObject
2 False
2 MethodContext
2 True
3 OrderedCollection
7 ExternalAddress
7 ExternalLibraryFunction
10 WordArray
10 ExternalType
17 Dictionary
62 Metaclass
80 LinkedList
96 String
117 CompiledMethod
124 MethodDictionary
181 Association
227 Array
256 Character
320 Symbol
If you can spare sometime, would you please confirm or deny
the validity of this analysis. It would be very helpful for me
to fine tune the analyzer.
Also, if the analysis is correct, can your technology create an
image without 'cruft' and micro-kitchen-sink ;-)
I heard a lot about the '3 + 4' image but never saw one.
Thanks a lot for your time and effort, my dream
of an ImageBuilder is now coming true.
Cheers,
PhiHo.
More information about the Squeak-dev
mailing list
|