Vladimir Ozerov created IGNITE-2583:
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Summary: Investigate CHM8 allocations in GridDhtTxLocalAdapter.
Key: IGNITE-2583
URL: https://issues.apache.org/jira/browse/IGNITE-2583
Project: Ignite
Issue Type: Sub-task
Components: cache
Affects Versions: 1.5.0.final
Reporter: Vladimir Ozerov
Fix For: 1.6
*Problem*
Whenever GridDhtTxLocalAdapter is allocated, two CHM8-s are created
immediately: "nearMap" and "dhtMap".
This is visible as a memory hotspot, which is responsible for >2% of overall
allocations during single PUT.
*Proposed solution*
1) Investigate whether we really need concurrent semantics here. Can these maps
be replaced with HashMap-s or (HashMap + synchronzied)?
2) Investigate whether we can optimize for single-mapping scenario.
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