[jgroups-users] JGroups 4.0.0.Beta3

FYI: I just released beta3. Mostly optimizations, mainly reducing memory 
allocation:

* https://issues.jboss.org/browse/JGRP-2120: headers resized unnecessarily

* https://issues.jboss.org/browse/JGRP-2122: use of SizeStreamable to 
get the exact size of streamables. This creates output buffers when 
serializing that don't need to be increased, which would mean additional 
memory allocation

* https://issues.jboss.org/browse/JGRP-2123: Tuple<Long,T> -> 
LongTuple<T>. This eliminates autoboxing of long to Long

* https://issues.jboss.org/browse/JGRP-2124: expand 
ByteArrayDataOutputStream more conservatively, reduces memory allocation

* https://issues.jboss.org/browse/JGRP-2125: reading of ints and longs 
allocates temp byte[] buffers, this was eliminated, reducing overall 
memory allocation

* https://issues.jboss.org/browse/JGRP-2127: reduced in-memory size of 
UNICAST3 header from 40 to 32. Every unicast message carries such a 
header, so this also reduces memory allocation

-- 
Bela Ban, JGroups lead (http://www.jgroups.org)


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