[pypy-svn] r20690 - pypy/dist/pypy/doc

[cfbolz at codespeak.net]

Author: cfbolz
Date: Mon Dec  5 16:03:27 2005
New Revision: 20690

Modified:
   pypy/dist/pypy/doc/translation-aspects.txt
Log:
(pedronis, cfbolz):

added future work in the threading and object model section


Modified: pypy/dist/pypy/doc/translation-aspects.txt
==============================================================================
--- pypy/dist/pypy/doc/translation-aspects.txt	(original)
+++ pypy/dist/pypy/doc/translation-aspects.txt	Mon Dec  5 16:03:27 2005
@@ -417,16 +417,27 @@
 implementation by removing unnecessary incref-decref pairs. A bigger task would
 be to add support for detecing circular references.
 
+
 Threading model
 ---------------
 
-  - green threads? 
-  - threading model with various granularities of locking
+One of the interesting possibities that stackless offers is to implement green
+threading. This would involve writing a scheduler and preemption logic. 
+
+We should also investigate other threading models based on operating system
+threads with various granularities of locking for access of shared access.
 
 Object model
 ------------
-  - more sophisticated structure inlining ?  possibly
 
+We also might want to experiment with more sophisticated structure inlining.
+That means identifying a field in a structure A that points to another object B
+on the heap in such a way, that the pointer in A gets assigned only once to and
+that no other pointer to B exists from a heap object. If this is the case the
+object B can be inlined into the A since B lives exactly as long as A. 
+
+As noted above, another plan is to implement builtin application level objects
+by using tagged pointer.
 
 Conclusion
 ===========