Vladimir Ozerov created IGNITE-2579:
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Summary: Investigate HashMap.Node[] allocations from
GridCacheMvccManager$3
Key: IGNITE-2579
URL: https://issues.apache.org/jira/browse/IGNITE-2579
Project: Ignite
Issue Type: Task
Components: cache
Affects Versions: 1.5.0.final
Reporter: Vladimir Ozerov
Fix For: 1.6
*Problem*
See GridCacheMvccManager.addFuture() method. We create a weird HashSet there
with internal table size == 5. Can we have something more efficient here?
*Proposed solution*
Need to run single get-put benchmarks and check usual size of this collection.
If it is often equal to 1, then instead of allocating the whole collection,
we'd better to have a singleton first and expand to collection if there are
more elements.
Please pay attention that collection usually used as monitor in some
synchronized blocks.
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