[infinispan-dev] ISPN-863 proposal

[Vladimir Blagojevic]

Dave,

I applaud you for this effort and your implementation and wiki are 
indeed admirable as you have followed the goals outlined in this JIRA. 
However, now that I have had an opportunity to look at the final 
solution I have one concern. We went through a great lengths to design a 
container that has a low lock contention [1] while maintaining high 
precision of a sophisticated eviction algorithm. Goals outlined in this 
JIRA have lead you in a direction to redesign the original proposal. I 
was wondering if it is possible to use your MemoryMonitor to make a 
decision whether or not to grow BCHM rather than to check if eviction 
should be done upon each put invocation? Currently we preset the size of 
BCHM and we never grow it (i.e. Segment#rehash is never invoked). Maybe 
this is a place where MemoryMonitor comes as a natural fit. We can keep 
the current design as outlined in [1] while reaping the benefits of a 
memory bound resizeable container.


WDYT?


Regards,
Vladimir



[1] 
http://infinispan.blogspot.com/2010/03/infinispan-eviction-batching-updates.html


Dave said:

It took me some time to figure out how to use Git and add some more 
tests. I have pushed my changes to a topic branch located at 
https://github.com/dlmarion/infinispan/tree/ISPN-863-master.

Please let me know if you have any questions or concerns. I have put up 
some documentation at 
https://github.com/dlmarion/infinispan/wiki/ISPN-863-Implementation

-- Dave Marion
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