Le 2/5/16 � 11:30, Victor RENE a �crit�:
Hello,
�
I am new to Pharo and would like to understand a few things.
I can search by myself, but I do not know the code base yet, so:
�
[Questions]
Pharo image:
��� Serialization, deserialization, where is the code?
Are you talking about image or serialization of objects?

Pharo vm (Cog/Spur):
� � Rendering loop and event loops. done with SDL2, where is the code?
Look at OSWindows in Pharo we are in transition.


� � Message passing, object hierarchy lookup, where is the code?

in the VM

Pharo minimal:
� � How to get a working version? The builds I tried (4.0)�crashed.
Can you tell us more?
We have different systems
��� - miniimage which is built automatically by removing packges and this is working so may be you use the wrong vm.

��� - bootstrapped kernels
��� ��� will be in production in Pharo 60

��� - specialized image
��� we got down to 11k for 2+3 and 18k for 20 factorial
��� this is experimental but hyper fun.

[Purpose]
My goal is work out an image/vm with minimum overhead. For example,
� � let's say I want to build a modern multi-touch application.
��� Yes we build that for Thales

��� Pharo's environment looks promising on the live coding/debugging side,
�� �but what about the performance?
��� It depends what you want to do. if this is real time, Pharo is not a real time os
��� After Thales are migrating to Pharo for their "prototype" of new interactive UI.
Lack of responsiveness would not be
�� �acceptable (think about design differences between Android/iOS).
��� We should do a pass on the Android VM and its event.
���

�
[Context]
I want to understand if the object oriented nature of Smalltalk is
��� the reason for the lack of apps of this nature (as far as I can tell).
��� Lack of Marketing is the reason. Not the technology.
��� Squeak run on PS2 in 300 k back in 2002 or befor.

For example, games have been done with Lisp: Jack and Daxter (on the PS2,
��� by Naughty Dogs). There are also game engines�for the�JVM
��� (https://www.lwjgl.org/).
Dedicated hardware has been built for either Lisp or Forth. I can't seem
��� to find any hardware built specifically to power Smalltalk software.
Yet as far as I can tell, it's the big time for software virtual machines,
��� because the new generation of hardware will be supporting them.
��� (https://news.ycombinator.com/item?id=10032295)
��� I do not know.

UPDATE: I am reading through "Evaluating message passing control techniques
in Smalltalk" (https://www.researchgate.net/publication/2440118_Evaluating_Message_Passing_Control_Techniques_in_Smalltalk).
I am getting a better picture of the whole, please direct to more such papers.

it is an old paper. When I arrived from CLOS I wanted to know if I could do the same.
Now I know and we can certainly do better at the MOP level.
�
Thanks,

Victor RENE
Software engineer,
Game designer, Writer


tel: +33 6 26 83 61 76
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