You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@ignite.apache.org by "Ilya Lantukh (JIRA)" <ji...@apache.org> on 2016/05/23 11:33:12 UTC
[jira] [Assigned] (IGNITE-2583) Investigate CHM8 allocations in
GridDhtTxLocalAdapter.
[ https://issues.apache.org/jira/browse/IGNITE-2583?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ilya Lantukh reassigned IGNITE-2583:
------------------------------------
Assignee: (was: Ilya Lantukh)
> Investigate CHM8 allocations in GridDhtTxLocalAdapter.
> ------------------------------------------------------
>
> Key: IGNITE-2583
> URL: https://issues.apache.org/jira/browse/IGNITE-2583
> Project: Ignite
> Issue Type: Task
> Components: cache
> Affects Versions: 1.5.0.final
> Reporter: Vladimir Ozerov
> Labels: performance
> Fix For: 1.7
>
>
> *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.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)