ignite-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Vladimir Ozerov (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (IGNITE-2580) Investigate HashMap.Node[] allocations from GridDhtTxPrepareFuture.readyLocks(Iterable)
Date Thu, 22 Dec 2016 13:17:58 GMT

     [ https://issues.apache.org/jira/browse/IGNITE-2580?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vladimir Ozerov updated IGNITE-2580:
------------------------------------
    Priority: Minor  (was: Major)

> Investigate HashMap.Node[] allocations from GridDhtTxPrepareFuture.readyLocks(Iterable)
> ---------------------------------------------------------------------------------------
>
>                 Key: IGNITE-2580
>                 URL: https://issues.apache.org/jira/browse/IGNITE-2580
>             Project: Ignite
>          Issue Type: Task
>          Components: cache
>    Affects Versions: 1.5.0.final
>            Reporter: Vladimir Ozerov
>            Priority: Minor
>              Labels: performance
>             Fix For: 2.0
>
>
> *Problem*
> GridDhtTxPrepareFuture is initialized with empty HashSet by default. When single lock
is ready HashSet.add() is called causing immediate expansion of underlying HashMap table.
> *Solution*
> Do we really need fully-fledged hash set immediately? Probably we can optimize for single-lock
case so that HashSet is not needed at all.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message