[infinispan-dev] Infinispan embedded off-heap cache

[cotton-ben]

Thanks very much Tristan and Jaromir for these responses.

Interesting that Netty's off-heap allocation management (jemalloc) may
deliver us a  ' Save a 1xCOPY back to the heap!' advantage that Unsafe
malloc/free does not.

Peter Lawrey has commented that he will research  Netty's potential to be
used in parts of OpenHFT HugeCollections  .... TBD: what is the full
advantage/dis-advantage accounting of  replacing direct Unsafe malloc/free
with Netty?

But these are nityt/gritty details.  The big-picture news is that API
bridges (i.e. DataContainer) are available (and intended) to empower the
community to build their own "ISPN pluggable" off-heap impls of Cache<K,V>.

Nice!  The consequences of our *necessarily* staying on-heap has been a
"monstrous" experience for us (see
http://4.bp.blogspot.com/-upwza0_lLn4/TmXB4lKkPKI/AAAAAAAAAHY/9lA7VYCmSkI/s1600/heap_0001.jpg
).

We are excited about this potential to bring us real remedy.




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