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https://issues.apache.org/jira/browse/IGNITE-5918?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16116258#comment-16116258
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Vladimir Ozerov commented on IGNITE-5918:
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[~gvvinblade], looks good to me in general, but proposed improvement is not
tested properly. We need to add much more tests to cover various string
scenarios, including 1 byte chars (Latin), 2 byte chars (e.g. Cyrillic), and
4-byte surrogate chars.
> Adding and searching objects in index tree produces a lot of garbage
> --------------------------------------------------------------------
>
> Key: IGNITE-5918
> URL: https://issues.apache.org/jira/browse/IGNITE-5918
> Project: Ignite
> Issue Type: Improvement
> Affects Versions: 2.1
> Reporter: Mikhail Cherkasov
> Assignee: Igor Seliverstov
>
> Adding and searching objects in index tree produces a lot of garbage and this
> can lead to big GC pauses.
> Tests with data streaming of object with 5 string indexes show that ignite
> server spends about 15-25% CPU time in GC.
> The problem is that ignite deserialize objects for comparing, while for the
> primitive type and strings comparing can be implemented for bytes.
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