[
https://issues.apache.org/jira/browse/IGNITE-2264?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15071882#comment-15071882
]
Vladimir Ozerov commented on IGNITE-2264:
-----------------------------------------
One more major problem - very often there is only one entry in mapping. And we
create the whole LinkedHashSet for it.
No need for this actually. We can use singleton set or so here.
> Optimize GridDistributedTxMapping.
> ----------------------------------
>
> Key: IGNITE-2264
> URL: https://issues.apache.org/jira/browse/IGNITE-2264
> Project: Ignite
> Issue Type: Sub-task
> Components: cache
> Affects Versions: ignite-1.4
> Reporter: Vladimir Ozerov
> Assignee: Vladimir Ozerov
> Priority: Critical
> Fix For: 1.6
>
>
> This class has two methods: reads() and writes(). Together they return the
> whole set of entries.
> The problem is that each call creates collection wrapper over entries + 1
> additional iterator per each traverse over collection. This seen as a garbage
> "hotspot" in flight recorder.
> Actually there is no need for these methods. Instead, we can pass entries
> collection directly and filter entries manually.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
